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Android剪切图片

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Android剪切图片

 

项目需求中用到剪切图片功能,在网上打了比较好的解决方案,分享下。

参考:http://www.linuxidc.com/Linux/2012-11/73940.htm

贴出部分代码:

private android.view.View.OnClickListener onClickListener = new android.view.View.OnClickListener() {
		
		@Override
		public void onClick(View v) {
			switch (v.getId()) {
			case R.id.my_btn_cilp: //剪切大图
				//(file://)必须要加
				mImageCaptureUri = Uri.parse("file://"+imageFilePath);
				//大图使用URL
				Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);
				intent.setType("image/*");
				intent.putExtra("crop", "true");
				intent.putExtra("aspectX", 1);
				intent.putExtra("aspectY", 1);
				intent.putExtra("outputX", 600);
				intent.putExtra("outputY", 600);
				intent.putExtra("scale", true);
				intent.putExtra("return-data", false);
				intent.putExtra(MediaStore.EXTRA_OUTPUT, mImageCaptureUri);
				intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
				intent.putExtra("noFaceDetection", true); // no face detection
				//注意Intent.createChooser的使用,选择多个操作应用
				startActivityForResult(Intent.createChooser(intent, "选择"), CHOOSE_BIG_PICTURE);
				
				break;
			case R.id.my_btn_find://选择图库
				Intent intentimage = new Intent(Intent.ACTION_PICK, null);
				intentimage.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,"image/*");
				startActivityForResult(intentimage, PICK_FROM_FILE);
				break;
			case R.id.my_btncilp_thumb: //剪切缩略图
				//通过intent中设置的type属性来判断具体调用哪个程序的
				Intent intentThumb = new Intent(Intent.ACTION_GET_CONTENT, null);
				intentThumb.setType("image/*");
				intentThumb.putExtra("crop", "true");
				intentThumb.putExtra("aspectX", 2);
				intentThumb.putExtra("aspectY", 1);
				intentThumb.putExtra("outputX", 200);
				intentThumb.putExtra("outputY", 100);
				intentThumb.putExtra("scale", true);
				intentThumb.putExtra("return-data", true);
				intentThumb.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
				intentThumb.putExtra("noFaceDetection", true); // no face detection
				startActivityForResult(intentThumb, CHOOSE_BIG_PICTURE_SAVE);
				break;
			default:
				break;
			}
			
		}
	};

 

@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		Toast.makeText(
				MainActivity.this,
				"這是拍照所得" + requestCode + "resultCode===" + resultCode
						+ "RESULT_OK======" + RESULT_OK, Toast.LENGTH_LONG)
				.show();
		if (resultCode != RESULT_OK) {
			return;
		}
		switch (requestCode) {
		case PICK_FROM_FILE:
			//缩略图使用bitmap
			mImageCaptureUri = data.getData();
			Log.i("cilp", "CHOOSE_BIG_PICTURE: data = " + data);//it seems to be null
			 if(mImageView != null){
			  Bitmap bitmap = decodeUriAsBitmap(mImageCaptureUri);//decode bitmap
			  mImageView.setImageBitmap(bitmap);
			 }
			break;
		case CHOOSE_BIG_PICTURE:
			
			saveBigmap();
			break;
		case CHOOSE_BIG_PICTURE_SAVE:
			 if(data != null){
				 saveCutPic(data);
			 	}
			break;
		default:
			break;
		}
	}

 

 

 

 

 

 

 

注:示例工程,给出了剪切大图、缩略图的比较以及Intent.createChooser的使用

 

 

 

另外:补充下设置 RadioButton在文字 的右边 ,使用属性android:drawableRight="@android:drawable/btn_radio"

示例图:

 

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