Migration to AndroidX

.idea/misc.xml

@@ -25,5 +25,5 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8 (2)" project-jdk-type="JavaSDK" />
 </project>

app/build.gradle

@@ -9,7 +9,7 @@ android {
         targetSdkVersion 28
         versionCode 3
         versionName "1.1.1"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
         release {
@@ -27,24 +27,24 @@ android {
 
 
 dependencies {
-    implementation 'com.android.support:recyclerview-v7:28.0.0'
+    implementation 'androidx.recyclerview:recyclerview:1.0.0'
     implementation fileTree(include: ['*.jar'], dir: 'libs')
-    androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
+    androidTestImplementation('androidx.test.espresso:espresso-core:3.1.0-beta02', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
-    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'androidx.appcompat:appcompat:1.0.0'
-    implementation 'com.android.support:preference-v7:28.0.0'
+    implementation 'androidx.preference:preference:1.0.0'
-    implementation 'com.android.support:design:28.0.0'
+    implementation 'com.google.android.material:material:1.0.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha2'
-    implementation 'com.android.volley:volley:1.0.0'
+    implementation 'com.android.volley:volley:1.1.0'
     //noinspection GradleDependency
     implementation 'com.google.android.gms:play-services-auth:15.0.0'
-    implementation 'com.android.support:support-v4:28.0.0'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     testImplementation 'junit:junit:4.12'
     implementation fileTree(include: ['*.jar'], dir: 'libs')
-    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'androidx.appcompat:appcompat:1.0.0'
     implementation 'org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:4.1.2'
-    implementation 'com.android.support:support-v4:28.0.0'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'org.jetbrains:annotations-java5:15.0'
     //implementation 'com.github.quivr:android-week-view:2.0.2'//com.github.alamkanak:android-week-view:1.2.6
     implementation 'com.ms-square:expandableTextView:0.1.4'

app/src/main/java/de/sebse/fuplanner/MainActivity.java

@@ -2,24 +2,25 @@ package de.sebse.fuplanner;
 
 import android.content.Intent;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.StringRes;
-import android.support.design.widget.NavigationView;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentManager;
-import android.support.v4.app.FragmentTransaction;
-import android.support.v4.view.GravityCompat;
-import android.support.v4.widget.DrawerLayout;
-import android.support.v7.app.ActionBarDrawerToggle;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.Toolbar;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.TextView;
 
+import com.google.android.material.navigation.NavigationView;
+
 import java.util.Iterator;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+import androidx.appcompat.app.ActionBarDrawerToggle;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.core.view.GravityCompat;
+import androidx.drawerlayout.widget.DrawerLayout;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentTransaction;
 import de.sebse.fuplanner.fragments.CanteensFragment;
 import de.sebse.fuplanner.fragments.LoginFragment;
 import de.sebse.fuplanner.fragments.ModulesFragment;

app/src/main/java/de/sebse/fuplanner/fragments/CanteensAdapter.java

@@ -1,11 +1,11 @@
 package de.sebse.fuplanner.fragments;
 
-import android.support.annotation.NonNull;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.fragments.CanteensFragment.OnCanteensFragmentInteractionListener;
 import de.sebse.fuplanner.services.Canteen.types.Canteen;

app/src/main/java/de/sebse/fuplanner/fragments/CanteensFragment.java

@@ -2,15 +2,15 @@ package de.sebse.fuplanner.fragments;
 
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
-import android.support.v4.widget.SwipeRefreshLayout;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.Canteen.CanteenBrowser;

app/src/main/java/de/sebse/fuplanner/fragments/LoginFragment.java

@@ -3,8 +3,6 @@ package de.sebse.fuplanner.fragments;
 import android.app.ProgressDialog;
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -13,6 +11,8 @@ import android.widget.EditText;
 
 import java.io.IOException;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.GoogleAuth.GoogleAuth;

app/src/main/java/de/sebse/fuplanner/fragments/ModulesAdapter.java

@@ -1,11 +1,11 @@
 package de.sebse.fuplanner.fragments;
 
-import android.support.annotation.NonNull;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.fragments.ModulesFragment.OnModulesFragmentInteractionListener;
 import de.sebse.fuplanner.services.KVV.types.Modules;

app/src/main/java/de/sebse/fuplanner/fragments/ModulesFragment.java

@@ -2,15 +2,15 @@ package de.sebse.fuplanner.fragments;
 
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
-import android.support.v4.widget.SwipeRefreshLayout;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.KVV;

app/src/main/java/de/sebse/fuplanner/fragments/PrefsFragment.java

@@ -2,9 +2,9 @@ package de.sebse.fuplanner.fragments;
 
 import android.content.SharedPreferences;
 import android.os.Bundle;
-import android.support.v7.preference.ListPreference;
+import androidx.preference.ListPreference;
-import android.support.v7.preference.Preference;
+import androidx.preference.Preference;
-import android.support.v7.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceFragmentCompat;
 
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.tools.logging.Logger;

app/src/main/java/de/sebse/fuplanner/fragments/ScheduleFragment.java

@@ -4,8 +4,6 @@ import android.app.AlertDialog;
 import android.content.Context;
 import android.graphics.RectF;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -15,12 +13,14 @@ import java.util.Calendar;
 import java.util.Iterator;
 import java.util.List;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.KVV;
 import de.sebse.fuplanner.services.KVV.types.Event;
 import de.sebse.fuplanner.services.KVV.types.Modules;
-import de.sebse.fuplanner.tools.UtilsDate;
 import de.sebse.fuplanner.tools.MainAcitivityListener;
+import de.sebse.fuplanner.tools.UtilsDate;
 import de.sebse.fuplanner.tools.logging.Logger;
 import de.sebse.fuplanner.tools.ui.weekview.MonthLoader;
 import de.sebse.fuplanner.tools.ui.weekview.WeekView;

app/src/main/java/de/sebse/fuplanner/fragments/StartupFragment.java

@@ -1,12 +1,12 @@
 package de.sebse.fuplanner.fragments;
 
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
 import de.sebse.fuplanner.R;
 
 /**

app/src/main/java/de/sebse/fuplanner/fragments/canteen/DaySwitcherAdapter.java

@@ -1,8 +1,8 @@
 package de.sebse.fuplanner.fragments.canteen;
 
-import android.support.v4.app.Fragment;
+import androidx.fragment.app.Fragment;
-import android.support.v4.app.FragmentManager;
+import androidx.fragment.app.FragmentManager;
-import android.support.v4.app.FragmentStatePagerAdapter;
+import androidx.fragment.app.FragmentStatePagerAdapter;
 
 import de.sebse.fuplanner.services.Canteen.types.Canteen;
 import de.sebse.fuplanner.tools.UtilsDate;

app/src/main/java/de/sebse/fuplanner/fragments/canteen/DaySwitcherFragment.java

@@ -2,13 +2,13 @@ package de.sebse.fuplanner.fragments.canteen;
 
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
-import android.support.v4.view.ViewPager;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.viewpager.widget.ViewPager;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.Canteen.CanteenBrowser;

app/src/main/java/de/sebse/fuplanner/fragments/canteen/MealAdapter.java

@@ -1,9 +1,6 @@
 package de.sebse.fuplanner.fragments.canteen;
 
 import android.content.Context;
-import android.support.annotation.NonNull;
-import android.support.annotation.StringRes;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -12,6 +9,9 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+import androidx.recyclerview.widget.RecyclerView;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.Canteen.types.Day;
 import de.sebse.fuplanner.services.Canteen.types.Meal;

app/src/main/java/de/sebse/fuplanner/fragments/canteen/MealFragment.java

@@ -3,15 +3,14 @@ package de.sebse.fuplanner.fragments.canteen;
 
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
-import android.support.v4.widget.SwipeRefreshLayout;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.ExpandableListView;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.Canteen.CanteenBrowser;

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailAdapter.java

@@ -1,9 +1,9 @@
 package de.sebse.fuplanner.fragments.moddetails;
 
 import android.content.Context;
-import android.support.v4.app.Fragment;
+import androidx.fragment.app.Fragment;
-import android.support.v4.app.FragmentManager;
+import androidx.fragment.app.FragmentManager;
-import android.support.v4.app.FragmentStatePagerAdapter;
+import androidx.fragment.app.FragmentStatePagerAdapter;
 
 import de.sebse.fuplanner.R;
 

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailAnnounceFragment.java

@@ -2,14 +2,14 @@ package de.sebse.fuplanner.fragments.moddetails;
 
 
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
-import android.support.v4.widget.SwipeRefreshLayout;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ExpandableListView;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.KVV;

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailAssignmentFragment.java

@@ -2,14 +2,14 @@ package de.sebse.fuplanner.fragments.moddetails;
 
 
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
-import android.support.v4.widget.SwipeRefreshLayout;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ExpandableListView;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.KVV;

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailEventAdapter.java

@@ -1,7 +1,5 @@
 package de.sebse.fuplanner.fragments.moddetails;
 
-import android.support.annotation.NonNull;
-import android.support.v7.widget.RecyclerView;
 import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -9,6 +7,8 @@ import android.view.ViewGroup;
 
 import java.util.ArrayList;
 
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.types.Event;
 import de.sebse.fuplanner.services.KVV.types.Modules;

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailEventFragment.java

@@ -3,15 +3,15 @@ package de.sebse.fuplanner.fragments.moddetails;
 
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
-import android.support.v4.widget.SwipeRefreshLayout;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.KVV;

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailFragment.java

@@ -2,13 +2,13 @@ package de.sebse.fuplanner.fragments.moddetails;
 
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
-import android.support.v4.view.ViewPager;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.viewpager.widget.ViewPager;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.types.Modules;
 import de.sebse.fuplanner.tools.MainAcitivityListener;

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailGradebookAdapter.java

@@ -1,8 +1,6 @@
 package de.sebse.fuplanner.fragments.moddetails;
 
 import android.annotation.SuppressLint;
-import android.support.annotation.NonNull;
-import android.support.v7.widget.RecyclerView;
 import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -11,10 +9,11 @@ import android.widget.TextView;
 
 import java.util.ArrayList;
 
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.types.Gradebook;
 import de.sebse.fuplanner.services.KVV.types.Modules;
-import de.sebse.fuplanner.tools.ui.CustomViewHolder;
 import de.sebse.fuplanner.tools.ui.StringViewHolder;
 
 class ModDetailGradebookAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailGradebookFragment.java

@@ -3,15 +3,15 @@ package de.sebse.fuplanner.fragments.moddetails;
 
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
-import android.support.v4.widget.SwipeRefreshLayout;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.KVV;

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailOverviewAdapter.java

@@ -1,8 +1,5 @@
 package de.sebse.fuplanner.fragments.moddetails;
 
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v7.widget.RecyclerView;
 import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -12,6 +9,9 @@ import com.ms.square.android.expandabletextview.ExpandableTextView;
 
 import java.util.ArrayList;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.RecyclerView;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.types.Announcement;
 import de.sebse.fuplanner.services.KVV.types.Assignment;

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailOverviewFragment.java

@@ -3,16 +3,16 @@ package de.sebse.fuplanner.fragments.moddetails;
 
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.support.v4.widget.SwipeRefreshLayout;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.KVV;

app/src/main/java/de/sebse/fuplanner/fragments/moddetails/ModDetailResourceFragment.java

@@ -8,12 +8,6 @@ import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Environment;
-import android.support.annotation.NonNull;
-import android.support.v4.app.ActivityCompat;
-import android.support.v4.app.Fragment;
-import android.support.v4.widget.SwipeRefreshLayout;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -22,6 +16,12 @@ import android.widget.ImageView;
 import java.io.File;
 import java.util.Arrays;
 
+import androidx.annotation.NonNull;
+import androidx.core.app.ActivityCompat;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import de.sebse.fuplanner.MainActivity;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.services.KVV.KVV;

app/src/main/java/de/sebse/fuplanner/services/Canteen/types/Canteen.java

@@ -1,6 +1,6 @@
 package de.sebse.fuplanner.services.Canteen.types;
 
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 import java.io.Serializable;
 import java.util.Calendar;

app/src/main/java/de/sebse/fuplanner/services/Canteen/types/Canteens.java

@@ -1,7 +1,7 @@
 package de.sebse.fuplanner.services.Canteen.types;
 
 import android.content.Context;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 import java.io.FileInputStream;
 import java.io.FileOutputStream;

app/src/main/java/de/sebse/fuplanner/services/Canteen/types/Day.java

@@ -1,6 +1,6 @@
 package de.sebse.fuplanner.services.Canteen.types;
 
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 import java.io.Serializable;
 import java.util.Calendar;

app/src/main/java/de/sebse/fuplanner/services/GoogleAuth/GoogleAuth.java

@@ -2,8 +2,6 @@ package de.sebse.fuplanner.services.GoogleAuth;
 
 import android.content.Intent;
 import android.content.IntentSender;
-import android.support.annotation.Nullable;
-import android.support.v4.app.FragmentActivity;
 import android.util.Log;
 import android.widget.Toast;
 
@@ -17,6 +15,9 @@ import com.google.android.gms.common.api.ApiException;
 import com.google.android.gms.common.api.CommonStatusCodes;
 import com.google.android.gms.common.api.ResolvableApiException;
 
+import androidx.annotation.Nullable;
+import androidx.fragment.app.FragmentActivity;
+
 import static android.app.Activity.RESULT_OK;
 
 /**

app/src/main/java/de/sebse/fuplanner/services/KVV/KVV.java

@@ -1,13 +1,13 @@
 package de.sebse.fuplanner.services.KVV;
 
 import android.content.Context;
-import android.support.annotation.NonNull;
 import android.util.Pair;
 
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 
+import androidx.annotation.NonNull;
 import de.sebse.fuplanner.services.KVV.types.LoginToken;
 import de.sebse.fuplanner.services.KVV.types.Modules;
 import de.sebse.fuplanner.tools.MainAcitivityListener;

app/src/main/java/de/sebse/fuplanner/services/KVV/types/LoginToken.java

@@ -1,7 +1,6 @@
 package de.sebse.fuplanner.services.KVV.types;
 
 import android.content.Context;
-import android.support.annotation.Nullable;
 
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -11,6 +10,8 @@ import java.io.ObjectOutputStream;
 import java.io.Serializable;
 import java.util.HashMap;
 
+import androidx.annotation.Nullable;
+
 /**
  * Created by sebastian on 29.10.17.
  */

app/src/main/java/de/sebse/fuplanner/services/KVV/types/Modules.java

@@ -1,8 +1,6 @@
 package de.sebse.fuplanner.services.KVV.types;
 
 import android.content.Context;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
 
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -14,6 +12,9 @@ import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.Iterator;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
 /**
  * Created by sebastian on 29.10.17.
  */

app/src/main/java/de/sebse/fuplanner/services/KVV/types/Resource.java

@@ -1,10 +1,9 @@
 package de.sebse.fuplanner.services.KVV.types;
 
-import android.support.annotation.LayoutRes;
-
 import java.io.Serializable;
 import java.util.ArrayList;
 
+import androidx.annotation.LayoutRes;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.tools.ui.treeview.LayoutItemType;
 import de.sebse.fuplanner.tools.ui.treeview.TreeNode;

app/src/main/java/de/sebse/fuplanner/tools/ColorRes.java

@@ -1,7 +1,7 @@
 package de.sebse.fuplanner.tools;
 
 import android.graphics.Paint;
-import android.support.annotation.ColorInt;
+import androidx.annotation.ColorInt;
 
 public class ColorRes implements Color {
     @ColorInt private final int mResId;

app/src/main/java/de/sebse/fuplanner/tools/MainAcitivityListener.java

@@ -1,6 +1,6 @@
 package de.sebse.fuplanner.tools;
 
-import android.support.annotation.StringRes;
+import androidx.annotation.StringRes;
 
 import de.sebse.fuplanner.services.Canteen.CanteenBrowser;
 import de.sebse.fuplanner.services.GoogleAuth.GoogleAuth;

app/src/main/java/de/sebse/fuplanner/tools/Preferences.java

@@ -1,8 +1,8 @@
 package de.sebse.fuplanner.tools;
 
 import android.content.Context;
-import android.support.annotation.ArrayRes;
+import androidx.annotation.ArrayRes;
-import android.support.v7.preference.PreferenceManager;
+import androidx.preference.PreferenceManager;
 
 public class Preferences {
     public static String getString(Context context, @ArrayRes int key) {

app/src/main/java/de/sebse/fuplanner/tools/SortedList.java

@@ -1,7 +1,7 @@
 package de.sebse.fuplanner.tools;
 
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 
 import java.io.Serializable;
 import java.util.ArrayList;

app/src/main/java/de/sebse/fuplanner/tools/UtilsDate.java

@@ -4,7 +4,7 @@ import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.os.Build;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 import android.text.format.DateFormat;
 
 import com.google.android.gms.common.logging.Logger;

app/src/main/java/de/sebse/fuplanner/tools/network/BetterHurlStack.java

@@ -1,24 +1,18 @@
 package de.sebse.fuplanner.tools.network;
 
 import com.android.volley.AuthFailureError;
+import com.android.volley.Header;
 import com.android.volley.Request;
+import com.android.volley.toolbox.HttpResponse;
 import com.android.volley.toolbox.HurlStack;
 
-import org.apache.http.Header;
-import org.apache.http.HttpEntity;
-import org.apache.http.HttpResponse;
-import org.apache.http.ProtocolVersion;
-import org.apache.http.StatusLine;
-import org.apache.http.entity.BasicHttpEntity;
-import org.apache.http.message.BasicHeader;
-import org.apache.http.message.BasicHttpResponse;
-import org.apache.http.message.BasicStatusLine;
-
 import java.io.DataOutputStream;
+import java.io.FilterInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.HttpURLConnection;
 import java.net.URL;
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -28,12 +22,15 @@ import java.util.regex.Pattern;
 import javax.net.ssl.HttpsURLConnection;
 import javax.net.ssl.SSLSocketFactory;
 
+import androidx.annotation.VisibleForTesting;
+
 /**
  * Created by sebastian on 29.10.17.
  */
 
 public class BetterHurlStack extends HurlStack {
     private static final String HEADER_CONTENT_TYPE = "Content-Type";
+    private static final int HTTP_CONTINUE = 100;
 
     private final UrlRewriter mUrlRewriter;
     private final SSLSocketFactory mSslSocketFactory;
@@ -76,12 +73,12 @@ public class BetterHurlStack extends HurlStack {
     }
 
     @Override
-    public HttpResponse performRequest(Request<?> request, Map<String, String> additionalHeaders)
+    public HttpResponse executeRequest(Request<?> request, Map<String, String> additionalHeaders)
             throws IOException, AuthFailureError {
         String url = request.getUrl();
         HashMap<String, String> map = new HashMap<>();
-        map.putAll(request.getHeaders());
         map.putAll(additionalHeaders);
+        map.putAll(request.getHeaders());
         if (mUrlRewriter != null) {
             String rewritten = mUrlRewriter.rewriteUrl(url);
             if (rewritten == null) {
@@ -91,67 +88,85 @@ public class BetterHurlStack extends HurlStack {
         }
         URL parsedUrl = new URL(url);
         HttpURLConnection connection = openConnection(parsedUrl, request);
-        for (String headerName : map.keySet()) {
+        boolean keepConnectionOpen = false;
-            connection.addRequestProperty(headerName, map.get(headerName));
+        try {
+            for (String headerName : map.keySet()) {
+                connection.setRequestProperty(headerName, map.get(headerName));
+            }
+            setConnectionParametersForRequest(connection, request);
+            // Initialize HttpResponse with data from the HttpURLConnection.
+            int responseCode = connection.getResponseCode();
+            if (responseCode == -1) {
+                // -1 is returned by getResponseCode() if the response code could not be retrieved.
+                // Signal to the caller that something was wrong with the connection.
+                throw new IOException("Could not retrieve response code from HttpUrlConnection.");
+            }
+
+            if (!hasResponseBody(request.getMethod(), responseCode)) {
+                return new HttpResponse(responseCode, convertHeaders(connection.getHeaderFields()));
+            }
+
+            // Need to keep the connection open until the stream is consumed by the caller. Wrap the
+            // stream such that close() will disconnect the connection.
+            keepConnectionOpen = true;
+            return new HttpResponse(
+                    responseCode,
+                    convertHeaders(connection.getHeaderFields()),
+                    connection.getContentLength(),
+                    new UrlConnectionInputStream(connection));
+
+        } finally {
+            if (!keepConnectionOpen) {
+                connection.disconnect();
+            }
         }
-        setConnectionParametersForRequest(connection, request);
+    }
-        // Initialize HttpResponse with data from the HttpURLConnection.
+
-        ProtocolVersion protocolVersion = new ProtocolVersion("HTTP", 1, 1);
+    @VisibleForTesting
-        int responseCode = connection.getResponseCode();
+    static List<Header> convertHeaders(Map<String, List<String>> responseHeaders) {
-        if (responseCode == -1) {
+        List<Header> headerList = new ArrayList<>(responseHeaders.size());
-            // -1 is returned by getResponseCode() if the response code could not be retrieved.
+        for (Map.Entry<String, List<String>> entry : responseHeaders.entrySet()) {
-            // Signal to the caller that something was wrong with the connection.
+            // HttpUrlConnection includes the status line as a header with a null key; omit it here
-            throw new IOException("Could not retrieve response code from HttpUrlConnection.");
+            // since it's not really a header and the rest of Volley assumes non-null keys.
-        }
+            if (entry.getKey() != null) {
-        StatusLine responseStatus = new BasicStatusLine(protocolVersion,
+                if (entry.getKey().equals("Set-Cookie")) {
-                connection.getResponseCode(), connection.getResponseMessage());
-        BasicHttpResponse response = new BasicHttpResponse(responseStatus);
-        response.setEntity(entityFromConnection(connection));
-        for (Map.Entry<String, List<String>> header : connection.getHeaderFields().entrySet()) {
-            if (header.getKey() != null) {
-                Header h;
-                if (header.getKey().equals("Set-Cookie")) {
                     Pattern pattern = Pattern.compile("^([^=]+=[^;]+;)");
                     StringBuilder cookieValue = new StringBuilder();
-                    for (String value: header.getValue()) {
+                    for (String value : entry.getValue()) {
                         Matcher matcher = pattern.matcher(value);
                         if (matcher.find()) {
                             cookieValue.append(matcher.group(1));
                         }
                     }
-                    h = new BasicHeader(header.getKey(), cookieValue.toString());
+                    headerList.add(new Header(entry.getKey(), cookieValue.toString()));
                 } else {
-                    h = new BasicHeader(header.getKey(), header.getValue().get(0));
+                    headerList.add(new Header(entry.getKey(), entry.getValue().get(0)));
                 }
-                response.addHeader(h);
             }
         }
-        return response;
+        return headerList;
     }
 
     /**
-     * Initializes an {@link HttpEntity} from the given {@link HttpURLConnection}.
+     * Checks if a response message contains a body.
-     * @param connection A http connection
+     *
-     * @return an HttpEntity populated with data from <code>connection</code>.
+     * @see <a href="https://tools.ietf.org/html/rfc7230#section-3.3">RFC 7230 section 3.3</a>
+     * @param requestMethod request method
+     * @param responseCode response status code
+     * @return whether the response has a body
      */
-    private static HttpEntity entityFromConnection(HttpURLConnection connection) {
+    private static boolean hasResponseBody(int requestMethod, int responseCode) {
-        BasicHttpEntity entity = new BasicHttpEntity();
+        return requestMethod != Request.Method.HEAD
-        InputStream inputStream;
+                && !(HTTP_CONTINUE <= responseCode && responseCode < HttpURLConnection.HTTP_OK)
-        try {
+                && responseCode != HttpURLConnection.HTTP_NO_CONTENT
-            inputStream = connection.getInputStream();
+                && responseCode != HttpURLConnection.HTTP_NOT_MODIFIED;
-        } catch (IOException ioe) {
-            inputStream = connection.getErrorStream();
-        }
-        entity.setContent(inputStream);
-        entity.setContentLength(connection.getContentLength());
-        entity.setContentEncoding(connection.getContentEncoding());
-        entity.setContentType(connection.getContentType());
-        return entity;
     }
 
+    // NOTE: Any request headers added here (via setRequestProperty or addRequestProperty) should be
+    // checked against the existing properties in the connection and not overridden if already set.
     @SuppressWarnings("deprecation")
-    /* package */ static void setConnectionParametersForRequest(HttpURLConnection connection,
+    /* package */ static void setConnectionParametersForRequest(
-                                                                Request<?> request) throws IOException, AuthFailureError {
+            HttpURLConnection connection, Request<?> request) throws IOException, AuthFailureError {
         switch (request.getMethod()) {
             case Request.Method.DEPRECATED_GET_OR_POST:
                 // This is the deprecated way that needs to be handled for backwards compatibility.
@@ -159,16 +174,8 @@ public class BetterHurlStack extends HurlStack {
                 // GET.  Otherwise, it is assumed that the request is a POST.
                 byte[] postBody = request.getPostBody();
                 if (postBody != null) {
-                    // Prepare output. There is no need to set Content-Length explicitly,
-                    // since this is handled by HttpURLConnection using the size of the prepared
-                    // output stream.
-                    connection.setDoOutput(true);
                     connection.setRequestMethod("POST");
-                    connection.addRequestProperty(HEADER_CONTENT_TYPE,
+                    addBody(connection, request, postBody);
-                            request.getPostBodyContentType());
-                    DataOutputStream out = new DataOutputStream(connection.getOutputStream());
-                    out.write(postBody);
-                    out.close();
                 }
                 break;
             case Request.Method.GET:
@@ -209,14 +216,26 @@ public class BetterHurlStack extends HurlStack {
             throws IOException, AuthFailureError {
         byte[] body = request.getBody();
         if (body != null) {
-            connection.setDoOutput(true);
+            addBody(connection, request, body);
-            connection.addRequestProperty(HEADER_CONTENT_TYPE, request.getBodyContentType());
-            DataOutputStream out = new DataOutputStream(connection.getOutputStream());
-            out.write(body);
-            out.close();
         }
     }
 
+    private static void addBody(HttpURLConnection connection, Request<?> request, byte[] body)
+            throws IOException {
+        // Prepare output. There is no need to set Content-Length explicitly,
+        // since this is handled by HttpURLConnection using the size of the prepared
+        // output stream.
+        connection.setDoOutput(true);
+        // Set the content-type unless it was already set (by Request#getHeaders).
+        if (!connection.getRequestProperties().containsKey(HEADER_CONTENT_TYPE)) {
+            connection.setRequestProperty(
+                    HEADER_CONTENT_TYPE, request.getBodyContentType());
+        }
+        DataOutputStream out = new DataOutputStream(connection.getOutputStream());
+        out.write(body);
+        out.close();
+    }
+
     private HttpURLConnection openConnection(URL url, Request<?> request) throws IOException {
         HttpURLConnection connection = createConnection(url);
         int timeoutMs = request.getTimeoutMs();
@@ -230,4 +249,40 @@ public class BetterHurlStack extends HurlStack {
         }
         return connection;
     }
+
+
+    /**
+     * Wrapper for a {@link HttpURLConnection}'s InputStream which disconnects the connection on
+     * stream close.
+     */
+    static class UrlConnectionInputStream extends FilterInputStream {
+        private final HttpURLConnection mConnection;
+
+        UrlConnectionInputStream(HttpURLConnection connection) {
+            super(inputStreamFromConnection(connection));
+            mConnection = connection;
+        }
+
+        @Override
+        public void close() throws IOException {
+            super.close();
+            mConnection.disconnect();
+        }
+    }
+
+    /**
+     * Initializes an {@link InputStream} from the given {@link HttpURLConnection}.
+     *
+     * @param connection
+     * @return an HttpEntity populated with data from <code>connection</code>.
+     */
+    private static InputStream inputStreamFromConnection(HttpURLConnection connection) {
+        InputStream inputStream;
+        try {
+            inputStream = connection.getInputStream();
+        } catch (IOException ioe) {
+            inputStream = connection.getErrorStream();
+        }
+        return inputStream;
+    }
 }

app/src/main/java/de/sebse/fuplanner/tools/network/HTTPService.java

@@ -1,7 +1,6 @@
 package de.sebse.fuplanner.tools.network;
 
 import android.content.Context;
-import android.support.annotation.Nullable;
 
 import com.android.volley.AuthFailureError;
 import com.android.volley.NetworkResponse;
@@ -17,6 +16,7 @@ import java.net.URLEncoder;
 import java.util.HashMap;
 import java.util.Map;
 
+import androidx.annotation.Nullable;
 import de.sebse.fuplanner.tools.logging.Logger;
 
 /**

app/src/main/java/de/sebse/fuplanner/tools/network/NetworkCallback.java

@@ -1,6 +1,6 @@
 package de.sebse.fuplanner.tools.network;
 
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 public interface NetworkCallback<T> {
     void onResponse(@NonNull T success);

app/src/main/java/de/sebse/fuplanner/tools/ui/CustomViewHolder.java

@@ -1,8 +1,9 @@
 package de.sebse.fuplanner.tools.ui;
 
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
 
+import androidx.recyclerview.widget.RecyclerView;
+
 public class CustomViewHolder extends RecyclerView.ViewHolder {
     public final View mView;
 

app/src/main/java/de/sebse/fuplanner/tools/ui/cardview/ExpandableCardView.java

@@ -4,9 +4,6 @@ package de.sebse.fuplanner.tools.ui.cardview;
 import android.content.Context;
 import android.content.res.TypedArray;
 import android.os.Build;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.Nullable;
-import android.support.v7.widget.CardView;
 import android.util.AttributeSet;
 import android.util.TypedValue;
 import android.view.View;
@@ -15,6 +12,9 @@ import android.view.animation.RotateAnimation;
 import android.view.animation.Transformation;
 import android.widget.ImageButton;
 
+import androidx.annotation.LayoutRes;
+import androidx.annotation.Nullable;
+import androidx.cardview.widget.CardView;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.tools.UtilsUi;
 import de.sebse.fuplanner.tools.logging.Logger;

app/src/main/java/de/sebse/fuplanner/tools/ui/treeview/TreeNode.java

@@ -1,6 +1,6 @@
 package de.sebse.fuplanner.tools.ui.treeview;
 
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 import java.util.ArrayList;
 import java.util.List;

app/src/main/java/de/sebse/fuplanner/tools/ui/treeview/TreeViewAdapter.java

@@ -1,10 +1,6 @@
 package de.sebse.fuplanner.tools.ui.treeview;
 
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v7.util.DiffUtil;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -13,6 +9,11 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.DiffUtil;
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * Created by tlh on 2016/10/1 :)
  */

app/src/main/java/de/sebse/fuplanner/tools/ui/treeview/TreeViewBinder.java

@@ -1,9 +1,10 @@
 package de.sebse.fuplanner.tools.ui.treeview;
 
-import android.support.annotation.IdRes;
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
 
+import androidx.annotation.IdRes;
+import androidx.recyclerview.widget.RecyclerView;
+
 
 public abstract class TreeViewBinder<VH extends RecyclerView.ViewHolder> implements LayoutItemType {
     public abstract VH provideViewHolder(View itemView);

app/src/main/java/de/sebse/fuplanner/tools/ui/weekview/TextColorPicker.java

@@ -1,6 +1,6 @@
 package de.sebse.fuplanner.tools.ui.weekview;
 
-import android.support.annotation.ColorInt;
+import androidx.annotation.ColorInt;
 
 
 

app/src/main/java/de/sebse/fuplanner/tools/ui/weekview/WeekView.java

@@ -13,11 +13,6 @@ import android.graphics.Typeface;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.os.Build;
-import android.support.annotation.Nullable;
-import android.support.annotation.RequiresApi;
-import android.support.v4.view.GestureDetectorCompat;
-import android.support.v4.view.ViewCompat;
-import android.support.v4.view.animation.FastOutLinearInInterpolator;
 import android.text.Layout;
 import android.text.SpannableStringBuilder;
 import android.text.StaticLayout;
@@ -44,6 +39,11 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
 
+import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
+import androidx.core.view.GestureDetectorCompat;
+import androidx.core.view.ViewCompat;
+import androidx.interpolator.view.animation.FastOutLinearInInterpolator;
 import de.sebse.fuplanner.R;
 import de.sebse.fuplanner.tools.ColorRes;
 import de.sebse.fuplanner.tools.UtilsDate;

app/src/main/res/layout/activity_main.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/drawer_layout"
@@ -13,7 +13,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
 
-    <android.support.design.widget.NavigationView
+    <com.google.android.material.navigation.NavigationView
         android:id="@+id/nav_view"
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
@@ -24,4 +24,4 @@
         app:headerLayout="@layout/nav_header_main"
         app:menu="@menu/activity_main_drawer" />
 
-</android.support.v4.widget.DrawerLayout>
+</androidx.drawerlayout.widget.DrawerLayout>

app/src/main/res/layout/app_bar_main.xml

@@ -1,18 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context="de.sebse.fuplanner.MainActivity">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:id="@+id/app_bar_layout"
         android:theme="@style/AppTheme.AppBarOverlay">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
@@ -41,7 +41,7 @@
             android:visibility="gone"
             android:text="@string/refresh_failed" />
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
     <FrameLayout
         android:id="@+id/fragcontainer"
@@ -50,4 +50,4 @@
         app:layout_behavior="@string/appbar_scrolling_view_behavior">
     </FrameLayout>
 
-</android.support.design.widget.CoordinatorLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/fragment_expandable_list_view.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.v4.widget.SwipeRefreshLayout
+<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
@@ -13,7 +13,6 @@
         android:layout_height="match_parent"
         android:layout_marginLeft="16dp"
         android:layout_marginRight="16dp"
-        app:layoutManager="android.support.v7.widget.LinearLayoutManager"
         tools:context=".fragments.moddetails.ModDetailAnnounceFragment"
         tools:listitem="@layout/list_all_caption" />
-</android.support.v4.widget.SwipeRefreshLayout>
+</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

app/src/main/res/layout/fragment_login.xml

@@ -21,7 +21,7 @@
             android:contentDescription="@string/cd_ic_launcher"/>
 
         <!-- Email Label -->
-        <android.support.design.widget.TextInputLayout
+        <com.google.android.material.textfield.TextInputLayout
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginTop="8dp"
@@ -31,10 +31,10 @@
                 android:layout_height="wrap_content"
                 android:inputType="textEmailAddress"
                 android:hint="@string/username" />
-        </android.support.design.widget.TextInputLayout>
+        </com.google.android.material.textfield.TextInputLayout>
 
         <!-- Password Label -->
-        <android.support.design.widget.TextInputLayout
+        <com.google.android.material.textfield.TextInputLayout
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginTop="8dp"
@@ -44,9 +44,9 @@
                 android:layout_height="wrap_content"
                 android:inputType="textPassword"
                 android:hint="@string/password"/>
-        </android.support.design.widget.TextInputLayout>
+        </com.google.android.material.textfield.TextInputLayout>
 
-        <android.support.v7.widget.AppCompatButton
+        <androidx.appcompat.widget.AppCompatButton
             android:id="@+id/btn_login"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
@@ -55,7 +55,7 @@
             android:padding="12dp"
             android:text="@string/log_in"/>
 
-        <android.support.v7.widget.AppCompatButton
+        <androidx.appcompat.widget.AppCompatButton
             android:id="@+id/btn_offline"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"

app/src/main/res/layout/fragment_mod_detail.xml

@@ -4,17 +4,17 @@
     android:layout_height="match_parent"
     android:orientation="vertical">
 
-    <android.support.v4.view.ViewPager
+    <androidx.viewpager.widget.ViewPager
         android:id="@+id/vpPager"
         android:layout_width="match_parent"
         android:layout_height="wrap_content">
 
-        <android.support.v4.view.PagerTabStrip
+        <androidx.viewpager.widget.PagerTabStrip
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_gravity="top"
             android:paddingBottom="4dp"
             android:paddingTop="4dp" />
 
-    </android.support.v4.view.ViewPager>
+    </androidx.viewpager.widget.ViewPager>
 </LinearLayout>

app/src/main/res/layout/fragment_modules_list.xml

@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.v4.widget.SwipeRefreshLayout
+<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"
 android:id="@+id/swipe_container"
 android:layout_width="match_parent"
 android:layout_height="match_parent">
-<android.support.v7.widget.RecyclerView
+<androidx.recyclerview.widget.RecyclerView
     android:id="@+id/list"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:layout_marginLeft="16dp"
     android:layout_marginRight="16dp"
-    app:layoutManager="android.support.v7.widget.LinearLayoutManager"
+    app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
     tools:listitem="@layout/list_all_caption" />
-</android.support.v4.widget.SwipeRefreshLayout>
+</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

app/src/main/res/layout/fragment_recycler_view.xml

@@ -1,19 +1,19 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.v4.widget.SwipeRefreshLayout
+<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/swipe_container"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
-    <android.support.v7.widget.RecyclerView
+    <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/list"
         android:name=".fragments.moddetails.ModDetailOverviewFragment"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_marginLeft="16dp"
         android:layout_marginRight="16dp"
-        app:layoutManager="android.support.v7.widget.LinearLayoutManager"
+        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
         tools:context=".fragments.moddetails.ModDetailOverviewFragment"
         tools:listitem="@layout/list_all_caption" />
-</android.support.v4.widget.SwipeRefreshLayout>
+</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

docs/GoogleAuth-old.java

@@ -3,9 +3,6 @@ package de.sebse.fuplanner.services.GoogleAuth;
 import android.content.Intent;
 import android.content.IntentSender;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.FragmentActivity;
 import android.util.Log;
 import android.widget.Toast;
 
@@ -19,6 +16,10 @@ import com.google.android.gms.common.api.GoogleApiClient;
 import com.google.android.gms.common.api.ResultCallback;
 import com.google.android.gms.common.api.Status;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.core.app.FragmentActivity;
+
 import static android.app.Activity.RESULT_OK;
 
 /**

gradle.properties

@@ -9,6 +9,8 @@
 
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
+android.enableJetifier=true
+android.useAndroidX=true
 org.gradle.jvmargs=-Xmx1536m
 
 # When configured, Gradle will run in incubating parallel mode.