mirror/Android
1
0
Fork 0
mirror of https://github.com/CatimaLoyalty/Android.git synced 2026-05-18 13:49:15 -04:00
Code Issues Packages Projects Releases Wiki Activity

Generate barcode after ImageView size is known

Browse Source 
The size of the ImageView may not yet be known when the
barcode generation is needed. If this is the case, wait
until the final layout is complete then start the
barcode generation.
This commit is contained in:
Branden Archer
2016-05-21 18:23:08 -04:00
parent b91d4c934a
commit dc4a41088c
1 changed files with 22 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
app/src/main/java/protect/card_locker/LoyaltyCardViewActivity.java
View File

@@ -11,6 +11,7 @@ import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewTreeObserver;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
@@ -149,7 +150,27 @@ public class LoyaltyCardViewActivity extends AppCompatActivity
final BarcodeFormat format = BarcodeFormat.valueOf(formatString);
final String cardIdString = cardIdField.getText().toString();
new BarcodeImageWriterTask(barcodeImage, cardIdString, format).execute();
if(barcodeImage.getHeight() == 0)
{
Log.d(TAG, "ImageView size is not known known at start, waiting for load");
// The size of the ImageView is not yet available as it has not
// yet been drawn. Wait for it to be drawn so the size is available.
barcodeImage.getViewTreeObserver().addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener()
{
@Override
public void onGlobalLayout()
{
Log.d(TAG, "ImageView size now known");
new BarcodeImageWriterTask(barcodeImage, cardIdString, format).execute();
}
});
}
else
{
Log.d(TAG, "ImageView size known known, creating barcode");
new BarcodeImageWriterTask(barcodeImage, cardIdString, format).execute();
}
barcodeIdLayout.setVisibility(View.VISIBLE);
barcodeImageLayout.setVisibility(View.VISIBLE);