I have an onclick that will allow a user to select a file from gallery like so:
case R.id.ColourCustom:
customBorderChange();
break;
private void customBorderChange() {
final ImageView QPBackground = (ImageView) findViewById(R.id.QPBackground);
menuHandler.removeCallbacks(menuTimer);
menuHandler.postDelayed(menuTimer, 5000);
bgHandler.removeCallbacks(runnableBG);
bgHandler.postDelayed(runnableBG, 2000);
Intent i = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, GALLERY_REQUEST);
File file = getFileStreamPath("QuickPlayBG.png");
if (file.exists()) {
QPBackground.setImageBitmap(getThumbnail("QuickPlayBG.png"));
} else {
String uri21 = "@drawable/bg_green";
int imageResource21 = getResources().getIdentifier(uri21, null, getPackageName());
QPBackground.setBackgroundResource(imageResource21);
}
}
This sends you here:
protected void onActivityResult (int requestCode, int resultCode, Intent data)
{
Uri selectedImageUri;
if (requestCode == GALLERY_REQUEST && resultCode == RESULT_OK && null !=
data) {
selectedImageUri = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImageUri,
filePathColumn, null, null, null);
cursor.moveToFirst();
cursor.close();
}
try {
Bundle extras = data.getExtras();
Bitmap photo = extras.getParcelable("data");
saveBGFile(photo);
} catch (Exception e) {
String errorMessage = "Make your mind up mate!";
Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
toast.show();
}
try {
saveQPConfig();
} catch (IOException e) {
String errorMessage = "Saving failed";
Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
toast.show();
}
}
Which saves the file, using saveBGFile:
public void saveBGFile(Bitmap image) {
FileOutputStream out = null;
String filename = "QuickPlayBG.png";
try {
out = new FileOutputStream(filename);
image.compress(Bitmap.CompressFormat.PNG, 100, out);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (out != null) {
out.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
The issue is with this line only:
QPBackground.setImageBitmap(getThumbnail("QuickPlayBG.png"));
It doesn't load anything. If I change "QuickPlayBG.png" to another filename that I am using in another part of my app, it loads fine. Both files are created using the same method. I verified that "QuickPlayBG.png" exists.
Compiler gives me the following hint:
E/﹕ ReadStreamToBuffer : Qmage Stream read error!! required length 12 bytes, but red 0 bytes
E/﹕ isQmage : input SkStreamRewindable length is less than Qmage minimum size : 0
I think it has to do with the way I am saving the image, but I cannot see the fault myself. What could be the problem, that it is not loading the image?
Edit:
Here is the getThumbnail method I am using (works for another filename):
public Bitmap getThumbnail(String filename) {
final Context context = this;
String fullPath = Environment.getExternalStorageDirectory().getAbsolutePath();
Bitmap thumbnail = null;
if (thumbnail == null) {
try {
File filePath = context.getFileStreamPath(filename);
FileInputStream fi = new FileInputStream(filePath);
thumbnail = BitmapFactory.decodeStream(fi);
} catch (Exception ex) {
Log.e("getThumbnail() !exist", ex.getMessage());
}
}
return thumbnail;
}
Use this short and sweet code for this. use intent of gallery.
1.declaire variable.
private static int RESULT_IMG = 1;
String imgString;
2.call intent of gallery on onclick of button.
Intent galleryIntent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(galleryIntent, RESULT_LOAD_IMG);
3.onActivityResult to your code.
@Override
protected void onActivityResult(int requestCode, int responseCode, Intent data) {
super.onActivityResult(requestCode, responseCode, data);
try {
if (requestCode == RESULT_IMG && responseCode == RESULT_OK
&& null != data) {
Uri pickedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(pickedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
imgString = cursor.getString(columnIndex);
cursor.close();
//set bitmap to your imageview
ImageView imgView = (ImageView) findViewById(R.id.imgView);
imgView.setImageBitmap(BitmapFactory.decodeFile(imgString));
} else {
Toast.makeText(this, "please select picture",Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
Toast.makeText(this, "error message", Toast.LENGTH_LONG)
.show();
}
}
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