相关疑难解决方法(0)

我为我的应用程序实现了一个自定义对话框.我希望实现当用户在对话框外单击时,对话框将被取消.我该怎么做？

我正在开发一个应用程序,当按下按钮时,它会打开一个带有确定和取消按钮的对话框.

它工作正常.

当用户按下后退按钮时,我按如下方式处理

public boolean onKeyDown(int keyCode, KeyEvent event) 
{
    if ((keyCode == KeyEvent.KEYCODE_BACK)) 
    {

    }
 return super.onKeyDown(keyCode, event);
}

但是没有调用上面的方法.我怎么处理这个？

这个DialogFragment实现导致了

IllegalStateException("你不能设置Dialog的OnCancelListener或OnDismissListener")

.为什么？解？

public class OkCThreadDialog1 extends DialogFragment{

DialogInterface.OnCancelListener onCancelListener;

public OkCThreadDialog1(){
}

public static OkCThreadDialog1 newInstance(String title, String message) {
    OkCThreadDialog1 frag = new OkCThreadDialog1();
    Bundle args = new Bundle();
    args.putString("title", title);
    args.putString("message", message);
    frag.setArguments(args);
    return frag;
}


public Dialog onCreateDialog(Bundle savedInstanceState){

    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());


    builder .setTitle(getArguments().getString("title"))
            .setMessage(getArguments().getString("message"))
            .setOnCancelListener(onCancelListener)
            .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                }})
            .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    getDialog().cancel();
                }});

    return builder.create();
} …

我的活动打开一个对话框.当它关闭时,我需要ReloadTable()执行该功能.所以我试图使用,setOnDismissListener但它没有被触发.有人可以帮助我做错了吗？

谢谢!

AlertDialog.Builder builder;
AlertDialog alertDialog;
Context mContext = getApplicationContext();
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.transaction, null);
builder = new AlertDialog.Builder(new ContextThemeWrapper(TransactionsList.this , R.style.dialogwithoutdim));
builder.setView(layout);
alertDialog = builder.create();
alertDialog.setOnDismissListener(new OnDismissListener() {
    public void onDismiss(final DialogInterface dialog) {
        ReloadTable();
    }
});

builder.show();