我正在尝试直接从图库中挑选和裁剪图片， 出于某种原因，作物意图并不总是有效，在某些设备上它与库存库一起工作， 在某些设备上，它仅适用于非官方的图库应用程序（例如我的G2）。
我知道它应该可以在我的设备上运行，因为我有其他应用程序使用相同的图库裁剪功能及其作品。
每当我尝试使用股票库打开意图时，我会收到以下消息：找不到项目
（我希望用户选择图像，而不是传递特定的图像位置）
// Start a intent to get event image from the user
private void getCroppedImage(){
// Create an output directory for the image
String timeStamp = new SimpleDateFormat("ddMMMyy_HHmmSSS").format(new Date());
File dir = new File(Environment.getExternalStorageDirectory ()
+ File.separator
+ "MyApp/Images");
File picPath = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES);
File outputPath = new File(dir,"IMG_"+ timeStamp + ".jpg");
// Make sure that the output dir exists
if (!dir.exists()){
dir.mkdirs();
}
// Start intent, if available
Intent cropIntent = new Intent("com.android.camera.action.CROP");
//cropIntent.setData(Uri.fromFile(picPath));
cropIntent.setType("image/*");
cropIntent.putExtra("crop", "true");
cropIntent.putExtra("outputX", 512);
cropIntent.putExtra("outputY", 512);
cropIntent.putExtra("aspectX", 1);
cropIntent.putExtra("aspectY", 1);
cropIntent.putExtra("output", Uri.fromFile(outputPath));
// Verify that the intent will resolve to an activity
if (cropIntent.resolveActivity(getPackageManager()) != null) {
startActivityForResult(cropIntent, REQUEST_CODE_CROP_IMAGE);
}else{
cropIntent.setAction(Intent.ACTION_GET_CONTENT);
// Verify that the intent will resolve to an activity
if (cropIntent.resolveActivity(getPackageManager()) != null) {
startActivityForResult(cropIntent, REQUEST_CODE_GET_PICTURE);
}else{
Toast.makeText(this,"Gallery not detected",Toast.LENGTH_LONG).show();
}
}
}
有什么想法吗？
答案 0 :(得分：0)
试试这个：
public class CropOptionAdapter extends ArrayAdapter<CropOption> {
private ArrayList<CropOption> mOptions;
private LayoutInflater mInflater;
public CropOptionAdapter(Context context, ArrayList<CropOption> options) {
super(context, R.layout.crop_selector, options);
mOptions = options;
mInflater = LayoutInflater.from(context);
}
@Override
public View getView(int position, View convertView, ViewGroup group) {
if (convertView == null)
convertView = mInflater.inflate(R.layout.crop_selector, null);
CropOption item = mOptions.get(position);
if (item != null) {
((ImageView) convertView.findViewById(R.id.iv_icon))
.setImageDrawable(item.icon);
((TextView) convertView.findViewById(R.id.tv_name))
.setText(item.title);
return convertView;
}
return null;
}
}
public class CropOption {
public CharSequence title;
public Drawable icon;
public Intent appIntent;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_OK)
return;
switch (requestCode) {
case PICK_FROM_CAMERA:
/**
* After taking a picture, do the crop
*/
doCrop();
break;
case PICK_FROM_FILE:
/**
* After selecting image from files, save the selected path
*/
mImageCaptureUri = data.getData();
infoLog("pick from file");
doCrop();
break;
case CROP_FROM_CAMERA:
Bundle extras = data.getExtras();
/**
* After cropping the image, get the bitmap of the cropped image and
* display it on imageview.
*/
if (extras != null) {
photo = extras.getParcelable("data");
Bitmap circleBitmap = Bitmap.createBitmap(photo.getWidth(),
photo.getHeight(), Bitmap.Config.ARGB_8888);
BitmapShader shader = new BitmapShader(photo, TileMode.CLAMP,
TileMode.CLAMP);
Paint paint = new Paint();
paint.setShader(shader);
Canvas c = new Canvas(circleBitmap);
c.drawCircle(photo.getWidth() / 2, photo.getHeight() / 2,
photo.getWidth() / 2, paint);
img.setImageBitmap(photo);
}
File f = new File(mImageCaptureUri.getPath());
/**
* Delete the temporary image
*/
if (f.exists())
f.delete();
break;
}
}
private void doCrop() {
final ArrayList<CropOption> cropOptions = new ArrayList<CropOption>();
/**
* Open image crop app by starting an intent
* ‘com.android.camera.action.CROP‘.
*/
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setType("image/*");
/**
* Check if there is image cropper app installed.
*/
List<ResolveInfo> list = getPackageManager().queryIntentActivities(
intent, 0);
int size = list.size();
/**
* If there is no image cropper app, display warning message
*/
if (size == 0) {
Toast.makeText(this, "Can not find image crop app",
Toast.LENGTH_SHORT).show();
return;
} else {
/**
* Specify the image path, crop dimension and scale
*/
intent.setData(mImageCaptureUri);
intent.putExtra("outputX", 200);
intent.putExtra("outputY", 200);
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("scale", true);
intent.putExtra("return-data", true);
/**
* There is possibility when more than one image cropper app exist,
* so we have to check for it first. If there is only one app, open
* then app.
*/
if (size == 1) {
Intent i = new Intent(intent);
ResolveInfo res = list.get(0);
i.setComponent(new ComponentName(res.activityInfo.packageName,
res.activityInfo.name));
startActivityForResult(i, CROP_FROM_CAMERA);
} else {
/**
* If there are several app exist, create a custom chooser to
* let user selects the app.
*/
for (ResolveInfo res : list) {
final CropOption co = new CropOption();
co.title = getPackageManager().getApplicationLabel(
res.activityInfo.applicationInfo);
co.icon = getPackageManager().getApplicationIcon(
res.activityInfo.applicationInfo);
co.appIntent = new Intent(intent);
co.appIntent
.setComponent(new ComponentName(
res.activityInfo.packageName,
res.activityInfo.name));
cropOptions.add(co);
}
CropOptionAdapter adapter = new CropOptionAdapter(
getApplicationContext(), cropOptions);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Choose Crop App");
builder.setAdapter(adapter,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
startActivityForResult(
cropOptions.get(item).appIntent,
CROP_FROM_CAMERA);
}
});
builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
if (mImageCaptureUri != null) {
getContentResolver().delete(mImageCaptureUri, null,
null);
mImageCaptureUri = null;
}
}
});
AlertDialog alert = builder.create();
alert.show();
}
}
}