fix lint warnings

build.gradle

@@ -15,7 +15,7 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.1.0'
-        classpath 'com.google.gms:google-services:3.0.0'
+        classpath 'com.google.gms:google-services:3.1.2'
     }
 }
 
@@ -31,7 +31,7 @@ configurations.all {
 
 ext {
     supportLibraryVersion = '27.1.0'
-    googleLibraryVersion = '11.2.2'
+    googleLibraryVersion = '12.0.1'
     androidLibraryVersion = '1.0.40'
 
     travisBuild = System.getenv("TRAVIS") == "true"
@@ -194,7 +194,7 @@ android {
 
 dependencies {
     // dependencies for app building
-    implementation 'com.android.support:multidex:1.0.2'
+    implementation 'com.android.support:multidex:1.0.3'
 //    implementation project('nextcloud-android-library')
     genericImplementation "com.github.nextcloud:android-library:${androidLibraryVersion}"
     gplayImplementation "com.github.nextcloud:android-library:${androidLibraryVersion}"

src/main/java/com/owncloud/android/widgets/ActionEditText.java

@@ -138,6 +138,7 @@ public class ActionEditText extends AppCompatEditText {
                 0xff0000);
         badgeClickCallback = a
                 .getString(R.styleable.ActionEditText_onBadgeClick);
+        a.recycle();
     }
 
 }