Android从本地相册中选着相片作为图像

Dear 丶 2022-07-15 05:37 35阅读 0赞

//请求识别码
    private static final int CODE_GALLERY_REQUEST = 0xa0;
    private static final int CODE_RESULT_REQUEST = 0xa2;
    // 裁剪后图片的宽(X)和高(Y),480 X 480的正方形。
    private static int output_X = 480;
    private static int output_Y = 480;

// 从相册选取图片作为头像
        private void choseAvatarFromGallery() {
            Intent intent = new Intent();
            // 设置文件的类型
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(intent, CODE_GALLERY_REQUEST);
        }

/*
         * 裁剪选择的图片
         */
        public void cropRawPhoto(Uri uri) {
    
            Intent intent = new Intent("com.android.camera.action.CROP");
            intent.setDataAndType(uri, "image/*");
            // 设置裁剪
            intent.putExtra("crop", "true");
            // aspectX , aspectY :宽高的比例
            intent.putExtra("aspectX", 1);
            intent.putExtra("aspectY", 1);
    
            // outputX , outputY : 裁剪图片宽高
            intent.putExtra("outputX", output_X);
            intent.putExtra("outputY", output_Y);
            intent.putExtra("return-data", true);
            startActivityForResult(intent, CODE_RESULT_REQUEST);
        }
    
        /**
         * 提取保存裁剪之后的图片数据，并设置头像部分的View
         */
        private void setImageToHeadView(Intent intent) {
            Bundle extras = intent.getExtras();
            if (extras != null) {
                Bitmap photo = extras.getParcelable("data");
                revise_avatar.setImageBitmap(photo);
            }
        } 
     //返回结果
      @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            // 用户没有进行有效的设置操作，返回
            if (resultCode == RESULT_CANCELED) {
                ToastUtils.showToast(Revise_personaldata.this, "取消", Toast.LENGTH_LONG);
            }
            switch (requestCode){
                case CODE_GALLERY_REQUEST:
                    cropRawPhoto(data.getData());
                    break;
                case CODE_RESULT_REQUEST:
                    setImageToHeadView(data);
                    break;
            }
    
        }