Question

我正在集成一个代码，用于捕获图像以及如何从gallery获取图像。这是我的源代码。它适用于个人，但从图库上传图像时没有显示imageview。请帮帮我

private static int RESULT_LOAD_IMAGE = 1;
private static final int CAMERA_REQUEST = 1888; 
private ImageView imageView,imageView1;
private static final int SELECT_PICTURE = 1;
String  selectedPath;

private String selectedImagePath;
Uri selectedImageUri;
//ADDED
private String filemanagerstring;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);



    this.imageView = (ImageView)this.findViewById(R.id.imageView1);
    Button photoButton = (Button) this.findViewById(R.id.button1);
    photoButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
            startActivityForResult(cameraIntent, CAMERA_REQUEST); 
        }
    });
}
ShutterCallback shutterCallback = new ShutterCallback() {
    public void onShutter() {
        //Log.d(TAG, "onShutter'd");
    }
};


protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
    if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {  
        Bitmap photo = (Bitmap) data.getExtras().get("data"); 
        imageView.setImageBitmap(photo);
    } 



    Button buttonLoadImage = (Button) findViewById(R.id.buttonLoadPicture);
    buttonLoadImage.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View arg0) {

            Intent i = new Intent(
                    Intent.ACTION_PICK,
                    android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

            startActivityForResult(i, RESULT_LOAD_IMAGE);
        }
    });
}


protected void onActivityResult1(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
        Uri selectedImage = data.getData();
        String[] filePathColumn = { MediaStore.Images.Media.DATA };

        Cursor cursor = getContentResolver().query(selectedImage,
                filePathColumn, null, null, null);
        cursor.moveToFirst();

        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        String picturePath = cursor.getString(columnIndex);
        cursor.close();

        ImageView imageView = (ImageView) findViewById(R.id.imgView);
        imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));

    }


}

}

Answer 1

在您的顶级类声明之后声明全局变量：

 private static int RESULT_LOAD_IMAGE = 1;
 private static final int PICK_FROM_GALLERY = 2;
 Bitmap thumbnail = null;

像这样调用这个意图:(你的功能）

  public void YourFunction(){
       Intent in = new   Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                      startActivityForResult(in, RESULT_LOAD_IMAGE);

   }

像这样处理结果：在课堂的任何地方将你的onCreate声明。

 protected void onActivityResult(int requestCode, int resultCode, Intent data) {  

    super.onActivityResult(requestCode, resultCode, data);     

     if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data){

         Uri selectedImage = data.getData();
            String[] filePathColumn = { MediaStore.Images.Media.DATA };
            Cursor cursor = getContentResolver().query(selectedImage,filePathColumn, null, null, null);
            cursor.moveToFirst();
            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            String picturePath = cursor.getString(columnIndex);
            cursor.close();
            thumbnail = (BitmapFactory.decodeFile(picturePath));

缩略图是你的形象，去玩吧！

如何捕获图像以及如何从android中的图库中获取图像

1 个答案: