小编jOE*_*jOE的帖子

我创建了一个Android的动态壁纸,我试图让用户选择从他们的手机图像并把它作为背景图像,但是当我发起的活动,开始有意挑选图片,我的共享偏好唐好像保存得当.

下面是我当用户按下优选项按钮,我开始活动的onCreate方法,并获得设备上的图像的路径onActivityResult(一切似乎工作).提交首选项后的println什么都没打印出来.

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

    Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
    photoPickerIntent.setType("image/*");
    startActivityForResult(photoPickerIntent, SELECT_PICTURE);
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (resultCode == RESULT_OK) {
        if (requestCode == SELECT_PICTURE) {
            Uri selectedImageUri = data.getData();
            selectedImagePath = getPath(selectedImageUri);

            preferences = getApplicationContext().getSharedPreferences(PREFERENCES_NAME, 0);
            preferences.edit().putString(SETTINGS_BACKGROUND_IMAGE, "okok");
            preferences.edit().commit();

            System.out.println("Image" + preferences.getString(SETTINGS_BACKGROUND_IMAGE, ""));
        }
    }

    finish();
}