裁剪缩放的图像'Android'

Question

我无法裁剪放大的图像我正在使用下面的代码缩放图像。任何人都可以帮助我吗？

这是代码。

public void selectRandomImage() 
{ 
    Cursor c = getContentResolver().query(Images.Media.EXTERNAL_CONTENT_URI, null, null, 
                null, null); 
    if (c != null) { 
    int count = c.getCount(); 
    int position = (int)(Math.random() * count); 
    if (c.moveToPosition(position)) { 
     long id = c.getLong(c.getColumnIndex(Images.Media._ID)); 
     int orientation = c.getInt(c.getColumnIndex(Images.Media.ORIENTATION)); 

     Uri imageUri = Uri.parse(Images.Media.EXTERNAL_CONTENT_URI + "/" + id); 
     Bitmap bitmap; 
     try { 
      bitmap = ImageLoader.loadFromUri(this, imageUri.toString(), 1024, 1024); 
      mImageView.setImageBitmapReset(bitmap, orientation, true); 
     } 
     catch (IOException e) { 
      Toast.makeText(this, e.toString(), Toast.LENGTH_LONG).show(); 
     } 
    } 
    c.close(); 
    c = null; 
    return; 
    } 

Answer 1

尝试这种::

if (itemx.equalsIgnoreCase("capture")) { 
      try 
      { 
      str_Height_of_crop = i1.getStringExtra("height"); 
      str_Width_of_crop = i1.getStringExtra("width"); 
      /*int_Height_crop = Integer.parseInt(str_Height_of_crop); 
      int_Width_crop = Integer.parseInt(str_Width_of_crop);*/ 
      int_Height_crop=190; 
      int_Width_crop=170; 

      Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
      mImageCaptureUri = Uri.fromFile(new File(Environment 
        .getExternalStorageDirectory(), "tmp_avatar_" 
        + String.valueOf(System.currentTimeMillis()) + ".jpg")); 
      intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, 
        mImageCaptureUri); 


       intent.putExtra("return-data", true); 

       startActivityForResult(intent, PICK_FROM_CAMERA); 

      }catch (Exception e) { 
       e.printStackTrace(); 
      } 

rivate void doCrop() { 
     final ArrayList<CropOption> cropOptions = new ArrayList<CropOption>(); 

     Intent intent = new Intent("com.android.camera.action.CROP"); 
     intent.setType("image/*"); 

     List<ResolveInfo> list = getPackageManager().queryIntentActivities(
       intent, 0); 

     int size = list.size(); 

     if (size == 0) { 
      Toast.makeText(this, "Can not find image crop app", 
        Toast.LENGTH_SHORT).show(); 

      return; 
     } else { 
      intent.setData(mImageCaptureUri); 

      /* 
      * intent.putExtra("outputX", 200); intent.putExtra("outputY", 200); 
      */ 

      intent.putExtra("outputX", int_Height_crop); 
      intent.putExtra("outputY", int_Width_crop); 
      intent.putExtra("aspectX", 1); 
      intent.putExtra("aspectY", 1); 
      intent.putExtra("scale", true); 
      intent.putExtra("return-data", true); 

      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 { 
       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(); 
      } 
     } 
    } 

Answer 2

尝试https://github.com/biokys/cropimage可以帮助ü。

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