Added an icon for when there are no pictures on the frame and when an image fails to load

Author: theastropath

app/src/main/java/nuts/deez/photoframeslideshow/MainActivity.java

@@ -484,11 +484,22 @@ void updateImage() {
                 showPictureAsync(nextPic);
 
             } else {
+                showNoPicturesIcon();
                 Toast.makeText(getApplicationContext(), "No Pictures Found!", Toast.LENGTH_SHORT).show();
             }
         }
     }
 
+    void showNoPicturesIcon(){
+        image = findViewById(R.id.imageView);
+        image.setImageResource(R.drawable.no_images);
+    }
+
+    void showBrokenImageIcon(){
+        image = findViewById(R.id.imageView);
+        image.setImageResource(R.drawable.broken_image);
+    }
+
     void goToPreviousImage(){
         if (imageIndex == 0){ //If it's showing the first picture...
              //Currently showing first picture, can't go back
@@ -703,6 +714,7 @@ protected Bitmap doInBackground(String... params) {
 
             if (!imageFile.exists()) {
                 Log.i(TAG, imageName + " does not exist?");
+                showBrokenImageIcon();
                 return null;
             }
 
@@ -712,6 +724,8 @@ protected Bitmap doInBackground(String... params) {
                 Bitmap bmImg = decodeFile(imageFile, frameWidth, frameHeight);
                 if (bmImg == null) {
                     Toast.makeText(getApplicationContext(), "Loaded null...", Toast.LENGTH_LONG).show();
+                    showBrokenImageIcon();
+                    return null;
                 }
 
                 int orientation = ei.getAttributeInt(ExifInterface.TAG_ORIENTATION,

app/src/main/res/drawable/no_images.xml

@@ -0,0 +1,5 @@
+<vector android:height="512dp"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="512dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M21.9,21.9l-8.49,-8.49l0,0L3.59,3.59l0,0L2.1,2.1L0.69,3.51L3,5.83V19c0,1.1 0.9,2 2,2h13.17l2.31,2.31L21.9,21.9zM5,18l3.5,-4.5l2.5,3.01L12.17,15l3,3H5zM21,18.17L5.83,3H19c1.1,0 2,0.9 2,2V18.17z"/>
+</vector>

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

@@ -24,7 +24,7 @@
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintVertical_bias="0.0"
         app:srcCompat="@color/black"
-        tools:srcCompat="@tools:sample/backgrounds/scenic[1]"
+        tools:srcCompat="@drawable/no_images"
         tools:visibility="visible" />
 
     <ImageView