Update dependencies, clean code

app/build.gradle

@@ -1,22 +1,21 @@
 apply plugin: 'com.android.application'
 apply plugin: 'com.github.ben-manes.versions'
 apply plugin: 'com.github.triplet.play'
-apply plugin: 'me.tatarka.retrolambda'
 
 dependencies {
-    compile 'eu.chainfire:libsuperuser:1.0.0.201704021214'
+    implementation 'eu.chainfire:libsuperuser:1.0.0.201704021214'
-    compile 'com.android.support:design:27.0.1'
+    implementation 'com.android.support:design:27.0.2'
-    compile 'com.google.zxing:android-integration:3.3.0'
+    implementation 'com.google.zxing:android-integration:3.3.0'
-    compile 'com.google.code.gson:gson:2.8.2'
+    implementation 'com.google.code.gson:gson:2.8.2'
-    compile 'org.mindrot:jbcrypt:0.4'
+    implementation 'org.mindrot:jbcrypt:0.4'
-    compile 'com.google.guava:guava:20.0'
+    implementation 'com.google.guava:guava:20.0'
-    compile 'com.annimon:stream:1.1.9'
+    implementation 'com.annimon:stream:1.1.9'
-    compile 'com.android.volley:volley:1.0.0'
+    implementation 'com.android.volley:volley:1.1.0'
-    compile 'com.android.support.constraint:constraint-layout:1.0.2'
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
-    compile "com.google.dagger:dagger:2.13"
+    implementation "com.google.dagger:dagger:2.13"
     annotationProcessor "com.google.dagger:dagger-compiler:2.13"
-    androidTestCompile 'com.android.support.test:rules:1.0.1'
+    androidTestImplementation 'com.android.support.test:rules:1.0.1'
-    androidTestCompile 'com.android.support:support-annotations:27.0.1'
+    androidTestImplementation 'com.android.support:support-annotations:27.0.2'
 }
 
 android {

app/src/main/java/com/nutomic/syncthingandroid/activities/FolderPickerActivity.java

@@ -16,7 +16,6 @@ import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v4.content.ContextCompat;
 import android.text.TextUtils;
-import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
@@ -35,16 +34,12 @@ import com.nutomic.syncthingandroid.SyncthingApp;
 import com.nutomic.syncthingandroid.service.SyncthingService;
 import com.nutomic.syncthingandroid.util.Util;
 
-import org.w3c.dom.Text;
-
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Iterator;
 
-import javax.inject.Inject;
-
 /**
  * Activity that allows selecting a directory in the local file system.
  */
@@ -54,7 +49,7 @@ public class FolderPickerActivity extends SyncthingActivity
     private static final String EXTRA_INITIAL_DIRECTORY =
             "com.nutomic.syncthingandroid.activities.FolderPickerActivity.INITIAL_DIRECTORY";
 
-    public static final String EXTRA_ROOT_DIRECTORY =
+    private static final String EXTRA_ROOT_DIRECTORY =
             "com.nutomic.syncthingandroid.activities.FolderPickerActivity.ROOT_DIRECTORY";
 
     public static final String EXTRA_RESULT_DIRECTORY =

app/src/main/java/com/nutomic/syncthingandroid/activities/ShareActivity.java

@@ -274,9 +274,9 @@ public class ShareActivity extends StateDialogActivity
 
     private class CopyFilesTask extends AsyncTask<Void, Void, Boolean> {
         private ProgressDialog mProgress;
-        private Map<Uri, String> mFiles;
+        private final Map<Uri, String> mFiles;
-        private Folder mFolder;
+        private final Folder mFolder;
-        private File mDirectory;
+        private final File mDirectory;
         private int mCopied = 0, mIgnored = 0;
 
         CopyFilesTask(Map<Uri, String> files, Folder folder, File directory) {

app/src/main/java/com/nutomic/syncthingandroid/activities/StateDialogActivity.java

@@ -127,9 +127,8 @@ public abstract class StateDialogActivity extends SyncthingActivity {
                     return;
 
                 binding.loadingSlowMessage.setVisibility(View.VISIBLE);
-                binding.viewLogs.setOnClickListener(v -> {
+                binding.viewLogs.setOnClickListener(v ->
-                    startActivity(new Intent(this, LogActivity.class));
+                        startActivity(new Intent(this, LogActivity.class)));
-                });
             }, SLOW_LOADING_TIME);
         }
     }

app/src/main/java/com/nutomic/syncthingandroid/activities/SyncthingActivity.java

@@ -83,7 +83,7 @@ public abstract class SyncthingActivity extends AppCompatActivity implements Ser
     /**
      * Used for Fragments to use the Activity's service connection.
      */
-    public void registerOnServiceConnectedListener(OnServiceConnectedListener listener) {
+    void registerOnServiceConnectedListener(OnServiceConnectedListener listener) {
         if (mSyncthingService != null) {
             listener.onServiceConnected();
         } else {
@@ -94,7 +94,7 @@ public abstract class SyncthingActivity extends AppCompatActivity implements Ser
     /**
      * Returns service object (or null if not bound).
      */
-    public SyncthingService getService() {
+    SyncthingService getService() {
         return mSyncthingService;
     }
 

app/src/main/java/com/nutomic/syncthingandroid/http/ApiRequest.java

@@ -1,7 +1,6 @@
 package com.nutomic.syncthingandroid.http;
 
 
-import android.annotation.SuppressLint;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.net.Uri;
@@ -30,10 +29,8 @@ import java.security.NoSuchAlgorithmException;
 import java.security.SecureRandom;
 import java.util.Map;
 
-import javax.net.ssl.HostnameVerifier;
 import javax.net.ssl.HttpsURLConnection;
 import javax.net.ssl.SSLContext;
-import javax.net.ssl.SSLSession;
 import javax.net.ssl.SSLSocketFactory;
 import javax.net.ssl.TrustManager;
 
@@ -73,14 +70,14 @@ public abstract class ApiRequest {
     private final String mPath;
     private final String mApiKey;
 
-    public ApiRequest(Context context, URL url, String path, String apiKey) {
+    ApiRequest(Context context, URL url, String path, String apiKey) {
         mContext = context;
         mUrl           = url;
         mPath          = path;
         mApiKey        = apiKey;
     }
 
-    protected Uri buildUri(Map<String, String> params) {
+    Uri buildUri(Map<String, String> params) {
         Uri.Builder uriBuilder = Uri.parse(mUrl.toString())
                 .buildUpon()
                 .path(mPath);
@@ -93,7 +90,7 @@ public abstract class ApiRequest {
     /**
      * Opens the connection, then returns success status and response string.
      */
-    protected void connect(int requestMethod, Uri uri, @Nullable String requestBody,
+    void connect(int requestMethod, Uri uri, @Nullable String requestBody,
                  @Nullable OnSuccessListener listener, @Nullable OnErrorListener errorListener) {
         StringRequest request = new StringRequest(requestMethod, uri.toString(), reply -> {
             if (listener != null)
@@ -125,7 +122,7 @@ public abstract class ApiRequest {
     /**
      * Opens the connection, then returns success status and response bitmap.
      */
-    protected void makeImageRequest(Uri uri, @Nullable OnImageSuccessListener imageListener,
+    void makeImageRequest(Uri uri, @Nullable OnImageSuccessListener imageListener,
                           @Nullable OnErrorListener errorListener) {
         ImageRequest imageRequest =  new ImageRequest(uri.toString(), bitmap -> {
             if (imageListener != null) {
@@ -158,13 +155,7 @@ public abstract class ApiRequest {
         @Override
         protected HttpURLConnection createConnection(URL url) throws IOException {
             HttpsURLConnection connection = (HttpsURLConnection) super.createConnection(url);
-            connection.setHostnameVerifier(new HostnameVerifier() {
+            connection.setHostnameVerifier((hostname, session) -> true);
-                @SuppressLint("BadHostnameVerifier")
-                @Override
-                public boolean verify(String hostname, SSLSession session) {
-                    return true;
-                }
-            });
             return connection;
         }
     }

app/src/main/java/com/nutomic/syncthingandroid/receiver/AppConfigReceiver.java

@@ -19,14 +19,14 @@ public class AppConfigReceiver extends BroadcastReceiver {
     /**
      * Start the Syncthing-Service
      */
-    public static final String ACTION_START = "com.nutomic.syncthingandroid.action.START";
+    private static final String ACTION_START = "com.nutomic.syncthingandroid.action.START";
 
     /**
      * Stop the Syncthing-Service
      * If alwaysRunInBackground is enabled the service must not be stopped. Instead a
      * notification is presented to the user.
      */
-    public static final String ACTION_STOP  = "com.nutomic.syncthingandroid.action.STOP";
+    private static final String ACTION_STOP  = "com.nutomic.syncthingandroid.action.STOP";
 
     @Inject NotificationHandler mNotificationHandler;
 

app/src/main/java/com/nutomic/syncthingandroid/receiver/PowerSaveModeChangedReceiver.java

@@ -8,7 +8,6 @@ import android.os.PowerManager;
 import android.support.v4.content.LocalBroadcastManager;
 
 import com.nutomic.syncthingandroid.service.DeviceStateHolder;
-import com.nutomic.syncthingandroid.service.SyncthingService;
 
 public class PowerSaveModeChangedReceiver extends BroadcastReceiver {
 

app/src/main/java/com/nutomic/syncthingandroid/service/Constants.java

@@ -31,7 +31,7 @@ public class Constants {
     /**
      * File in the config folder that contains configuration.
      */
-    static String CONFIG_FILE = "config.xml";
+    static final String CONFIG_FILE = "config.xml";
 
     public static File getConfigFile(Context context) {
         return new File(context.getFilesDir(), CONFIG_FILE);
@@ -40,7 +40,7 @@ public class Constants {
     /**
      * Name of the public key file in the data directory.
      */
-    static String PUBLIC_KEY_FILE = "cert.pem";
+    static final String PUBLIC_KEY_FILE = "cert.pem";
 
     static File getPublicKeyFile(Context context) {
         return new File(context.getFilesDir(), PUBLIC_KEY_FILE);

app/src/main/java/com/nutomic/syncthingandroid/service/NotificationHandler.java

@@ -25,7 +25,7 @@ public class NotificationHandler {
     private static final int ID_RESTART = 2;
     private static final int ID_STOP_BACKGROUND_WARNING = 3;
     private static final int ID_CRASH = 9;
-    public static final String CHANNEL_PERSISTENT = "01_syncthing_persistent";
+    private static final String CHANNEL_PERSISTENT = "01_syncthing_persistent";
     private static final String CHANNEL_INFO = "02_syncthing_notifications";
 
     private final Context mContext;

app/src/main/java/com/nutomic/syncthingandroid/service/RestApi.java

@@ -471,7 +471,7 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener,
     /**
      * Normalizes a given device ID.
      */
-    public void normalizeDeviceId(String id, OnResultListener1<String> listener,
+    private void normalizeDeviceId(String id, OnResultListener1<String> listener,
                                    OnResultListener1<String> errorListener) {
         new GetRequest(mContext, mUrl, GetRequest.URI_DEVICEID, mApiKey,
                 ImmutableMap.of("id", id), result -> {

app/src/main/java/com/nutomic/syncthingandroid/service/SyncthingRunnable.java

@@ -355,7 +355,7 @@ public class SyncthingRunnable implements Runnable {
     }
 
     private HashMap<String, String> buildEnvironment() {
-        HashMap<String, String> targetEnv = new HashMap<String, String>();
+        HashMap<String, String> targetEnv = new HashMap<>();
         // Set home directory to data folder for web GUI folder picker.
         targetEnv.put("HOME", Environment.getExternalStorageDirectory().getAbsolutePath());
         targetEnv.put("STTRACE", mPreferences.getString("sttrace", ""));

app/src/main/java/com/nutomic/syncthingandroid/util/Languages.java

@@ -9,7 +9,6 @@ import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.os.Build;
-import android.preference.PreferenceManager;
 import android.text.TextUtils;
 
 import com.nutomic.syncthingandroid.R;

build.gradle

@@ -8,10 +8,9 @@ buildscript {
         }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
         classpath 'com.github.triplet.gradle:play-publisher:1.2.0'
         classpath 'com.github.ben-manes:gradle-versions-plugin:0.15.0'
-        classpath 'me.tatarka:gradle-retrolambda:3.7.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files