Show error instead of send it, if image size is invalid (e.g. -1 x -1)

app/src/main/java/om/sstvencoder/CropView.java

@@ -180,7 +180,7 @@ public class CropView extends ImageView {
         invalidate();
     }
 
-    public void setBitmap(@NonNull InputStream stream) throws IOException {
+    public void setBitmap(@NonNull InputStream stream) throws IOException, IllegalArgumentException {
         mImageOK = false;
         mOrientation = 0;
         recycle();
@@ -188,7 +188,7 @@ public class CropView extends ImageView {
         invalidate();
     }
 
-    private void loadImage(InputStream stream) throws IOException {
+    private void loadImage(InputStream stream) throws IOException, IllegalArgumentException {
         // app6 + exif
         int bufferBytes = 1048576;
         if (!stream.markSupported())
@@ -212,7 +212,11 @@ public class CropView extends ImageView {
 
         if (mCacheBitmap == null && mRegionDecoder == null) {
             String size = options.outWidth + "x" + options.outHeight;
-            throw new IOException("Stream could not be decoded. Image size: " + size);
+            String message = "Stream could not be decoded. Image size: " + size;
+            if (mImageWidth <= 0 || mImageHeight <= 0)
+                throw new IllegalArgumentException(message);
+            else
+                throw new IOException(message);
         }
 
         mImageOK = true;

app/src/main/java/om/sstvencoder/MainActivity.java

@@ -130,6 +130,9 @@ public class MainActivity extends AppCompatActivity {
     private boolean loadImage(InputStream stream, ContentResolver resolver, Uri uri) {
         try {
             mCropView.setBitmap(stream);
+        } catch (IllegalArgumentException ex) {
+            Toast.makeText(this, ex.getMessage(), Toast.LENGTH_LONG).show();
+            return false;
         } catch (Exception ex) {
             String s = Utility.createMessage(ex) + "\n\n" + uri;
             showErrorMessage(getString(R.string.load_img_err_title), ex.getMessage(), s);