处理DialogFragment中的按钮单击

问题描述 投票:8回答:6

我有Fragment扩展DialogFragment,我有一个自定义布局,它包含两个edittexts和两个按钮 - 确定和取消。我的对话框显示得很好,使用onCreateView方法指定布局,但我不知道如何处理按钮点击。在onCreateView方法中,button.setOnClickListener不起作用。这可能有一个简单的解决方案,但我被困了几个小时。我非常感谢建议或示例代码。

PS我不想使用AlertDialog,因为在这种情况下单击ok按钮时,对话框会自动解除自身,我无法对edittext进行验证(例如:当用户按下ok按钮和edittext的时候是空的我不希望对话框消失)。这就是我选择创建自定义对话框并轻松管理按钮行为的方法。

android buttonclick android-dialogfragment
6个回答
6
投票

沿着这些路线

Dialog dl = mDialogFragment.getDialog();
Button btn = dl.findViewById(R.id.btn);
btn.setOnClickListener(this);

9
投票

这是我正在使用的Dialog的代码(对话框的实际GUI在布局资源confirm_dialog.xml中定义):

public class ConfirmDialog extends DialogFragment {

    public static String TAG = "Confirm Dialog";

    public interface ConfirmDialogCompliant {
        public void doOkConfirmClick();
        public void doCancelConfirmClick();
    }

    private ConfirmDialogCompliant caller;
    private String message;

    public ConfirmDialog(ConfirmDialogCompliant caller, String message){
        super();
        this.caller = caller;
        this.message = message;
    }

    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        final View view = inflater.inflate(R.layout.confirm_dialog, container, false);
        getDialog().requestWindowFeature(Window.FEATURE_NO_TITLE);
        ((TextView) view.findViewById(R.id.textview_confirm)).setText(message);
        ((Button) view.findViewById(R.id.ok_confirm_button)).setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                // When button is clicked, call up to owning activity.
                caller.doOkConfirmClick();
            }
        });
        ((Button) view.findViewById(R.id.cancel_confirm_button)).setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                // When button is clicked, call up to owning activity.
                caller.doCancelConfirmClick();
            }
        });
        return view;
    }

}

使用以下行创建对话框

confirm_dialog = new ConfirmDialog(this, message);
confirm_dialog.show(getActivity().getSupportFragmentManager(), ConfirmDialog.TAG);

接口定义用于确保调用者(Fragment或Activity)实现处理控制器抛出的事件的方法。也就是说,调用此对话框的Fragment或Activity必须实现给定的接口。 也许有一个更好的解决方案,但这是我想到的。希望能帮助到你!


8
投票

这是一个处理片段对话框类中对话框的取消按钮的示例:

我使用android.support.v4.app.DialogFragment;

public class MyDialogFragment extends DialogFragment { 
    public MyDialogFragment(){}     
    public static String TAG = "info Dialog";
    Button btn;   
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        final View view = inflater.inflate(R.layout.info_layout, container);
        getDialog().requestWindowFeature(STYLE_NO_TITLE);
        btn=(Button)view.findViewById(R.id.close_dialog_btn_info_layout);
        btn.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                getDialog().dismiss();
            }
        });

        return view;
    }





}

6
投票

另一种选择是让你的自定义DialogFragment类实现OnClickListener。然后你只需要setOnClickListener获取你想要点击的任何视图并捕获onClick中的点击。

// 1. implement OnClickListener
public class MyDialogFragment extends DialogFragment implements View.OnClickListener {

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

        LayoutInflater inflater = getActivity().getLayoutInflater();
        View view = inflater.inflate(R.layout.my_dialog_layout, null);

        // 2. set click listeners on desired views 
        view.findViewById(R.id.my_view_1).setOnClickListener(this);
        view.findViewById(R.id.my_view_2).setOnClickListener(this);


        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setView(view)
                // ...
        return builder.create();
    }   

    // 3. capture the clicks and respond depending on which view
    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.my_view_1:
                // do something
                break;
            case R.id.my_view_2:
                // do something
                break;
            default:
                break;
        }
    }
}

1
投票

它的活动很简单,但在DialogFragment中我们会做更多的代码。

在DialogFragment类中,在onActivityCreatedmethod上执行你的rutin findView

btn_ocak = (Button) view.findViewById(R.id.btn_cal_ocak);
    btn_subat = (Button) view.findViewById(R.id.btn_cal_subat);
    btn_mart = (Button) view.findViewById(R.id.btn_cal_mart);
    btn_nisan = (Button) view.findViewById(R.id.btn_cal_nisan);


 btn_ocak.setOnClickListener(this);
    btn_subat.setOnClickListener(this);
    btn_mart.setOnClickListener(this);
    btn_nisan.setOnClickListener(this);

实现onClick OnClickListener到您的类

public class CalendarPopUp extends DialogFragment implements View.OnClickListener

并在onClick方法中执行您想要的操作,通过执行这些操作,我们激活了视图的onClick事件

   @Override
public void onClick(View view) {
    switch (view.getId()) {
        case R.id.btn_cal_ocak:
            seciliAy = "Ocak";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_subat:
            seciliAy = "Subat";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_mart:
            seciliAy = "Mart";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_nisan:
            seciliAy = "Nisan";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_mayis:
            seciliAy = "Mayıs";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_haziran:
            seciliAy = "Haziran";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_temmuz:
            seciliAy = "Temmuz";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_agustos:
            seciliAy = "Agustos";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_eylul:
            seciliAy = "Eylül";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_ekim:
            seciliAy = "Ekim";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_kasim:
            seciliAy = "Kasım";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        case R.id.btn_cal_aralik:
            seciliAy = "Aralık";
            setMonthOnShare(seciliAy);
            mCallback.onSelectedData(seciliAy);
            dismiss();
            break;
        default:
            break;
    }
}

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0
投票

要么

class MyDialog extends DialogFragment {
   public View.OnClickListener onButtonOk;
   public EditText edit_text;

   @Override
   public Dialog onCreateDialog(Bundle savedInstanceState) {
       AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
       LayoutInflater li = LayoutInflater.from(builder.getContext());
       View view = li.inflate(R.layout.custom_dialog, null);
       Button buttonOK = view.findViewById(R.id.button_ok);
       edit_text = view.findViewById(R.id.edit_text);
       buttonOk.setOnClickListener(onButtonOk);
       builder.setView(view);

       return builder.create();
   }

}


// use
final MyDialog dialog=new MyDialog();
dialog.onButtonOk=new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        Toast.makeText(v.getContext(), dialog.edit_text.getText(), Toast.LENGTH_SHORT).show();
    }
};
dialog.show(getSupportFragmentManager(),null);
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