I am passing image url to the following method
private void performCrop(Uri imageUri){
try {
Intent intent = new Intent("com.android.camera.action.CROP");
// intent.setType("image/*");
intent.setDataAndType(imageUri, "image/*");
List<ResolveInfo> list = getActivity().getPackageManager().queryIntentActivities( intent, 0 );
int size = list.size();
if (size >= 0) {
intent.setData(imageUri);
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 0);
intent.putExtra("aspectY", 0);
intent.putExtra("outputX", 150);
intent.putExtra("outputY", 150);
intent.putExtra("scale", true);
intent.putExtra("scaleUpIfNeeded", true);
intent.putExtra("return-data", true);
Intent i = new Intent(intent);
ResolveInfo res = list.get(0);
i.setComponent( new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
System.out.println("before startActivityForResult");
try{
startActivityForResult(i, 2);
}catch(Exception e){
e.printStackTrace();
}
}
}
catch(ActivityNotFoundException anfe){
String errorMessage = "Whoops - your device doesn't support the crop action!";
//Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
//toast.show();
}
}
some of images are cropped but some image are not. When I crop image then my app's activity is closed and application starts it's previous or launcher activity so what is the problem??
the main issue is I am not getting any warning or error in log cat, and when I debug it the the till "System.out.println("before startActivityForResult");" the program excutes, that means it does not goes in or calling onActivityResult().
here is onActivityResult method
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if(requestCode ==2 && resultCode == getActivity().RESULT_OK){
System.out.println("inside logic...");
try{
if (data != null) {
// get the returned data
Bundle extras = data.getExtras();
// get the cropped bitmap
Bitmap bmp = extras.getParcelable("data");
imageView.setImageBitmap(bmp);
}
}catch(Exception e){
e.printStackTrace();
}
}
}
this code works successfully for me.try it
private static final int CAMERA_REQUEST = 1;
public static final int MEDIA_TYPE_IMAGE = 1;
final int PIC_CROP = 12;
Button btnCamera;
ImageView iv;
Uri picUri;
static File mediaFile, sendFile;
btnCamera.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
onImgProfile();
}
});
void onImgProfile() {
Intent captureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
picUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, picUri);
startActivityForResult(captureIntent, CAMERA_REQUEST);
}
private Uri getOutputMediaFileUri(int type) {
return Uri.fromFile(getOutputMediaFile(type));
}
private File getOutputMediaFile(int type) {
File mediaStorageDir = new File(
Environment.getExternalStorageDirectory(), "MyCameraApp");
if (!mediaStorageDir.exists()) {
if (!mediaStorageDir.mkdirs()) {
Log.d("MyCameraApp", "failed to create directory");
return null;
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss")
.format(new Date());
if (type == MEDIA_TYPE_IMAGE) {
mediaFile = new File(mediaStorageDir.getPath() + File.separator
+ "IMG_" + timeStamp + ".jpg");
} else {
return null;
}
return mediaFile;
}
@SuppressWarnings("unchecked")
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == CAMERA_REQUEST) {
// if (Build.VERSION.SDK_INT < 19) {
try {
if (mediaFile.exists()) {
performCrop();
// new SavePhotoData().execute();
}
} catch (Exception e) {
// TODO: handle exception
}
// }
} else if (requestCode == 11) {
try {
picUri = data.getData();
Log.i("uri", "" + picUri);
performCrop();
} catch (Exception e) {
// TODO: handle exception
}
} else if (requestCode == PIC_CROP) {
// get the returned data
try {
Bundle extras = data.getExtras();
// get the cropped bitmap
Bitmap thePic = extras.getParcelable("data");
// retrieve a reference to the ImageView
// display the returned cropped image
iv.setImageBitmap(thePic);
File mediaStorageDir = new File(
Environment.getExternalStorageDirectory(),
"MyCameraApp");
if (!mediaStorageDir.exists()) {
if (!mediaStorageDir.mkdirs()) {
Log.d("MyCameraApp", "failed to create directory");
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss")
.format(new Date());
sendFile = new File(mediaStorageDir.getPath() + File.separator
+ "IMG_" + timeStamp + ".png");
FileOutputStream fOut = new FileOutputStream(sendFile);
thePic.compress(Bitmap.CompressFormat.PNG, 85, fOut);
fOut.flush();
fOut.close();
} catch (Exception e) {
e.printStackTrace();
}
}
if (resultCode == 3) {
Bundle b = data.getExtras();
b.getString("msg");
}
};
private void performCrop() {
// take care of exceptions
try {
// call the standard crop action intent (the user device may not
// support it)
try {
Intent cropIntent = new Intent("com.android.camera.action.CROP");
// indicate image type and Uri
cropIntent.setDataAndType(picUri, "image/*");
// set crop properties
cropIntent.putExtra("crop", "true");
// indicate aspect of desired crop
cropIntent.putExtra("aspectX", 1);
cropIntent.putExtra("aspectY", 1);
// indicate output X and Y
cropIntent.putExtra("outputX", 256);
cropIntent.putExtra("outputY", 256);
// retrieve data on return
cropIntent.putExtra("return-data", true);
// start the activity - we handle returning in onActivityResult
startActivityForResult(cropIntent, PIC_CROP);
} catch (Exception e) {
// TODO: handle exception
}
}
// respond to users whose devices do not support the crop action
catch (ActivityNotFoundException anfe) {
// display an error message
String errorMessage = "Whoops - your device doesn't support the crop action!";
Toast toast = Toast.makeText(getApplicationContext(), errorMessage,
Toast.LENGTH_SHORT);
toast.show();
}
}
this code works for not only kitkat but all cersion of android
Android all devices does not have a cropping intent according @CommonsWare http://commonsware.com/blog/2013/01/23/no-android-does-not-have-crop-intent.html
so better is to use libraries
some of them are:
https://github.com/jdamcd/android-crop
来源：https://stackoverflow.com/questions/23261498/android-kitkat-image-crop