Fix some lint items.

Author: dbrant

CardboardMpo/build.gradle

@@ -8,8 +8,8 @@ android {
     defaultConfig {
         minSdkVersion 16
         targetSdkVersion 23
-        versionCode 9
-        versionName "1.5"
+        versionCode 10
+        versionName "1.6"
     }
 
     lintOptions.abortOnError false

CardboardMpo/src/main/java/com/dmitrybrant/android/cardboardmpo/MainActivity.java

@@ -225,7 +225,7 @@ public MainFindTask() {
 
         @Override
         protected void onPostExecute(List<File> results) {
-            if (isFinishing() || isDestroyed()) {
+            if (isActivityGone()) {
                 return;
             }
             mpoFileList.clear();
@@ -278,7 +278,7 @@ protected void onProgressUpdate(Integer... progress) {
 
         @Override
         protected void onPostExecute(List<Long> results) {
-            if (isFinishing() || isDestroyed()) {
+            if (isActivityGone()) {
                 return;
             }
             if (bmpLeft == null || bmpRight == null) {
@@ -328,4 +328,12 @@ private void cleanupBitmap(Bitmap bmp) {
         }
     }
 
+    private boolean isActivityGone() {
+        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN) {
+            if (isDestroyed()) {
+                return true;
+            }
+        }
+        return isFinishing();
+    }
 }

CardboardMpo/src/main/res/layout/common_ui.xml

@@ -35,6 +35,7 @@
                 android:layout_height="wrap_content"
                 android:padding="8dp"
                 android:gravity="center_horizontal"
+                android:textColor="@color/info_text"
                 android:background="@color/info_background"/>
         </LinearLayout>
 
@@ -55,6 +56,7 @@
                 android:layout_height="wrap_content"
                 android:padding="8dp"
                 android:gravity="center_horizontal"
+                android:textColor="@color/info_text"
                 android:background="@color/info_background"/>
         </LinearLayout>