Wait until measured

app/src/main/java/eu/faircode/email/ImageHelper.java

@@ -58,6 +58,8 @@ import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
+import java.util.concurrent.Semaphore;
+import java.util.concurrent.TimeUnit;
 
 class ImageHelper {
     private static final float MIN_LUMINANCE = 0.33f;
@@ -369,7 +371,7 @@ class ImageHelper {
         }
     }
 
-    private static void fitDrawable(Drawable d, AnnotatedSource a, View view) {
+    private static void fitDrawable(final Drawable d, AnnotatedSource a, final View view) {
         Rect bounds = d.getBounds();
         int w = bounds.width();
         int h = bounds.height();
@@ -385,12 +387,33 @@ class ImageHelper {
             d.setBounds(0, 0, w, h);
         }
 
-        float width = view.getWidth();
-        if (w > width) {
-            float scale = width / w;
-            w = Math.round(w * scale);
-            h = Math.round(h * scale);
-            d.setBounds(0, 0, w, h);
+        final Semaphore semaphore = new Semaphore(0);
+
+        view.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
+            @Override
+            public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
+                view.removeOnLayoutChangeListener(this);
+
+                Rect bounds = d.getBounds();
+                int w = bounds.width();
+                int h = bounds.height();
+
+                float width = view.getWidth();
+                if (w > width) {
+                    float scale = width / w;
+                    w = Math.round(w * scale);
+                    h = Math.round(h * scale);
+                    d.setBounds(0, 0, w, h);
+                }
+
+                semaphore.release();
+            }
+        });
+
+        try {
+            semaphore.tryAcquire(2500, TimeUnit.MILLISECONDS);
+        } catch (InterruptedException ex) {
+            Log.e(ex);
         }
     }