fragment를 이용한 dialog창 띄우기

fragment를 이용한 dialog창 띄우기

1. 레이아웃

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.progdv.fragment_dialog.MainActivity">

    <Button
        android:id="@+id/btnFragment"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!" />

</RelativeLayout>

2. 메인 액티비티

package com.progdv.fragment_dialog;

import android.app.Dialog;
import android.app.DialogFragment;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.annotation.NonNull;

import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
    Button btnFragment;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btnFragment = (Button)findViewById(R.id.btnFragment);
        btnFragment.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                MyAlertDialogFragment newDialogFragment =
                MyAlertDialogFragment.newInstance("Fragment Dialog 테스트 중...");
                newDialogFragment.show(getFragmentManager(), "dialog");
            }
        });
    }

    public static class MyAlertDialogFragment extends DialogFragment{

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

        @NonNull
        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            //return super.onCreateDialog(savedInstanceState);

            String title = getArguments().getString("title");
            return new AlertDialog.Builder(getActivity())
                    .setIcon(R.mipmap.ic_launcher)
                    .setTitle(title)
                    .setPositiveButton("확인", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            Log.i("MyLog", "확인 버튼이 눌림");
                        }
                    })
                    .setNegativeButton("취소", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            Log.i("MyLog", "취소 버튼이 눌림");
                        }
                    })
                    .create();
        }
    }
}