Question

我尝试创建图像效果应用程序在主屏幕上有按钮相机，油漆，画廊，设置我想从图库中选择图像并将其发送到新活动以在点击图库按钮后添加效果。这是我的代码

private static int RESULT_LOAD_IMAGE = 1;
Bitmap temp;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_main);

    Button gal = (Button)findViewById(R.id.bgal);

    gal.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i = new Intent(
                    Intent.ACTION_PICK,
                    android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
            startActivityForResult(i, RESULT_LOAD_IMAGE);

            Intent intent = new Intent(getApplicationContext(), Gallery.class);
            intent.putExtra("BitmapImage", temp);
            startActivity(intent);
        }
    });
}

@Override
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();

        temp =  BitmapFactory.decodeFile(picturePath);
    }

}

可以解决吗？

Answer 1

试试这个

private static int RESULT_LOAD_IMAGE = 1;
Bitmap temp;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);

Button gal = (Button)findViewById(R.id.bgal);

gal.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
        Intent i = new Intent(
                Intent.ACTION_PICK,
                android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        startActivityForResult(i, RESULT_LOAD_IMAGE);

    }
});
}

@Override
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();

    temp =  BitmapFactory.decodeFile(picturePath);


        Intent intent = new Intent(getApplicationContext(), Gallery.class);
        intent.putExtra("BitmapImage", temp);
        startActivity(intent);
}
}

{Android}我可以从图库中选择图片并将其发送到一个按钮的新活动吗？

1 个答案: