我面临以下问题。

我有一张图片 Gallery，我想打开一个 AlertDialog 来显示有关所点击图片的一些信息。我第一次点击图像时，它运行得很好。但接下来的几次，即使我点击不同的图片，同样的对话框也会再次出现。

用户案例

当我关注这个用户案例时

1. 选择位置2的图片
2. 关闭对话框
3. 选择位置 6 中的图片
4. 关闭对话框

，我得到这些打印品:

click na galeria... position: 2
startUserInformationDialog()... `this.position`: 2
onCreateDialog on switch.. `this.position`: 2
DISMISSING DIALOG `this.position`: 2

click na galeria... position: 6
startUserInformationDialog()... `this.position`: 6
DISMISSING DIALOG `this.position`: 6

表示代码没有通过onCreateDialog

代码

public AlertDialog createUserInformationAlertDialog() {
        LayoutInflater inflater = getLayoutInflater();
        View dialoglayout = inflater.inflate(R.layout.dialog_user_info,
                (ViewGroup) findViewById(R.id.dialog_user_layout_root));
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setView(dialoglayout);
        final MyObject ea = myList.get(positionUserToHaveInformationDisplayedOnTheDialog);
            // Setting values according to element to be shown
            TextView textView = (TextView) dialoglayout
                    .findViewById(R.id.user_name_value);
            textView.setText(ea.getName());
            ...
            builder.setNegativeButton(Locale_PT_BR.BACK,
                    new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,
                                int whichButton) {
                            Log.d("PRINT 1",
                                    "DISMISSING DIALOG `this.position`: "
                                            + positionUserToHaveInformationDisplayedOnTheDialog);
                            dialog.dismiss();
                        }
                    });
            return builder.create();
}


private void startUserInformationDialog() {
    Log.d("PRINT 2", "startUserInformationDialog()... `this.position`: "
            + positionUserToHaveInformationDisplayedOnTheDialog);
    showDialog(DIALOG_USER_INFORMATION);
}



@Override
    protected Dialog onCreateDialog(int id) {
        switch (id) {
        case DIALOG_USER_INFORMATION:
            Log.d("PRINT 3", "onCreateDialog on switch.. `this.position`: "
                    + positionUserToHaveInformationDisplayedOnTheDialog);
            return createUserInformationAlertDialog();
        default:
            return null;
        }
    }

private void startGallery() {
        myPhotoBar = (Gallery) findViewById(R.id.gallery);
        myPhotoBar.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView parent, View v, int position,
                    long id) {
                Log.d("PRINT 4", "click na galeria... position: " + position);
                positionUserToHaveInformationDisplayedOnTheDialog = position;
                startUserInformationDialog();
            }
        });

}

最佳答案

使用onPrepareDialog() 方法用数据填充对话框。如果你想销毁对话框，你应该调用 removeDialog() 方法。

关于android - 即使我在 Android 上调用 onCreateDialog，也不会创建 AlertDialog，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7262845/