[Android][Dialog]DialogFragment & AlertDialog 호환

작업환경 :

minSdkVersion 8 (Android 2.2 / Froyo)

targetSdkVersion 16 (Android 4.1.2  / IceCream

타겟을 허니컴(3.0) 이상으로 작업 할 때,

이전 버전(.../ 2.2 / 2.3 / 2.3.3 ... )에서 사용하던 기능들 구현방법이 다소 바꼈다.

크게 TabWidget 은 ActionBar 로, 

Dialog 는 Fragment 를 이용하여 구현해야 한댄다.

아래 소스는 

Dialog 창 띄우는 기능과 

AlertDialog (확인 버튼 / 취소 버튼) 기능을 넣은 소스이다.

참고로, 3.0 이하에서도 구현되도록 작성됐음!

// 파일 총 4 개 

// main.xml / TestDialogFragmentActivity.java /  fragment_dialog.xml 파일 / string.xml 파일

/* 이하 소스 1 _ layout 폴더 > main.xml 파일 */

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"    

    android:orientation="vertical"

    android:padding="4dip"

    android:gravity="center_horizontal"

    android:layout_width="match_parent"

    android:layout_height="match_parent"    

    android:background="#0000"

    tools:context=".TestDialogFragmentActivity" >

    <TextView

        android:id="@+id/text"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_weight="1"

        android:layout_gravity="center_vertical|center_horizontal"

        android:textAppearance="?android:attr/textAppearanceMedium"

        android:gravity="top|center_horizontal" />

    <LinearLayout 

        android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:orientation="horizontal"

android:layout_weight="0"

        >

<Button

android:id="@+id/show"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/show">

<requestFocus />

</Button>

       

<Button

android:id="@+id/show_alert"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/show_alert">

</Button>

    </LinearLayout>

    

</LinearLayout>

/* 

* 이하 소스 2 _ values 폴더 > string.xml 파일

*/

/* 

* 이하 소스 3 _ layout 폴더 > fragment_dialog.xml 파일

*/

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"    

    android:orientation="vertical"

    android:padding="4dip"

    android:gravity="center_horizontal"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:background="#4000"  

    tools:context=".TestDialogFragmentActivity" >

    <TextView

        android:id="@+id/text"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_weight="1"

        android:layout_gravity="center_vertical|center_horizontal"

        android:textAppearance="?android:attr/textAppearanceMedium"

        android:gravity="top|center_horizontal" />

    

    <Button

        android:id="@+id/show"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_weight="0"

        android:text="@string/show">

        <requestFocus />

    </Button>

</LinearLayout>

/* 

* 이하 소스 4 _ src 폴더 > TestDialogFragmentActivity.java 파일

*/

package com.example.test_fregmentdialog;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.support.v4.app.DialogFragment;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentTransaction;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.Button;

import android.widget.TextView;

public class TestDialogFragmentActivity extends FragmentActivity {

int mStackLevel = 0;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

View tv = findViewById(R.id.text);

((TextView)tv).setText("다이얼로그 프레그먼트 예제. " + "\n" + "\n"

+ "첫번째 다이얼로그 :  '보여주기'버튼 클릭." + "\n"

+ "'보여주기'버튼을 계속 누를 경우에 다른 다이얼로그 스타일들이"

+ "계속 보여주고 스택에 쌓여지고 '뒤로'버튼을 누르면 이전 다이얼로그가 보여주게됩니다." + "\n"+ "\n"

+ "두번째 Alert Dialog를 보려면 'Alert 보여주기'버튼을 누르세요." + "\n"

);

Button button_1 = (Button)findViewById(R.id.show);

button_1.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

showDialog();

}

});

Button button_2 = (Button)findViewById(R.id.show_alert);

button_2.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

showAlertDialog();

}

});

if(savedInstanceState != null) {

mStackLevel = savedInstanceState.getInt("level");

}

}

public void onSaveInstanceState(Bundle outState) {

super.onSaveInstanceState(outState);

outState.putInt("level", mStackLevel);

}

void showDialog() {

mStackLevel++;

// FragmentTransaction ft = getFragmentManager().beginTransaction();

FragmentTransaction ft = getSupportFragmentManager().beginTransaction();

// Fragment prev = getFragmentManager().findFragment("string");

// Fragment prev = getFragmentManager().findFragmentByTag("dialog");

Fragment prev = getSupportFragmentManager().findFragmentByTag("dialog");

if(prev != null) {

ft.remove(prev);

}

ft.addToBackStack(null);

// Create and show the dialog.

DialogFragment newFragment = MyDialogFragment.newInstance(mStackLevel);

newFragment.show(ft, "dialog");

}

// AlertDialog()

void showAlertDialog() {

DialogFragment newFragment = MyAlertDialogFragment.newInstance(R.string.alert_dialog_two_buttons_title);

newFragment.show(getSupportFragmentManager(), "dialog");

}

// AlertDialog()

public void doPositiveClick() {

Log.i("FragmentAlertDialog", "PositiveClick");

}

// AlertDialog()

public void doNegativeClick() {

Log.i("FragmentAlertDialog", "NegativeClick");

}

static String getNameForNum(int num) {

switch ((num-1)%6) {

case 1: return "STYLE_NO_TITLE";

case 2: return "STYLE_NO_FRAME";

case 3: return "STYLE_NO_INPUT (this window can't receive input, so "

+ "you will need to press the bottom show button)";

case 4: return "STYLE_NORMAL with dark fullscreen theme";

case 5: return "STYLE_NORMAL with light theme";

case 6: return "STYLE_NO_TITLE with light theme";

case 7: return "STYLE_NO_FRAME with light theme";

case 8: return "STYLE_NORMAL with light fullscreen theme";

}

return "STYLE_NORMAL";

}

public static class MyDialogFragment extends DialogFragment {

int mNum;

static MyDialogFragment newInstance(int num) {

MyDialogFragment f = new MyDialogFragment();

Bundle args = new Bundle();

args.putInt("num", num);

f.setArguments(args);

return f;

}

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

mNum = getArguments().getInt("num");

int style = DialogFragment.STYLE_NORMAL, theme = 0;

switch ((mNum-1)%6) {

case 1: style = DialogFragment.STYLE_NO_TITLE; break;

case 2: style = DialogFragment.STYLE_NO_FRAME; break;

case 3: style = DialogFragment.STYLE_NO_INPUT; break;

case 4: style = DialogFragment.STYLE_NORMAL; break;

case 5: style = DialogFragment.STYLE_NORMAL; break;

case 6: style = DialogFragment.STYLE_NO_TITLE; break;

case 7: style = DialogFragment.STYLE_NO_FRAME; break;

case 8: style = DialogFragment.STYLE_NO_INPUT; break;

}

switch ((mNum-1)%6) {

case 4: theme = android.R.style.Theme_Holo; break;

case 5: theme = android.R.style.Theme_Holo_Light_Dialog; break;

case 6: theme = android.R.style.Theme_Holo_Light; break;

case 7: theme = android.R.style.Theme_Holo_Light_Panel; break;

case 8: theme = android.R.style.Theme_Holo_Light; break;

}

setStyle(style, theme);

}

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

View v = inflater.inflate(R.layout.fragment_dialog, container, false);

View tv = v.findViewById(R.id.text);

((TextView)tv).setText("Dialog #" + mNum + ": using style " + getNameForNum(mNum));

Button button_1 = (Button)v.findViewById(R.id.show);

button_1.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

// ((FragmentDialog)getActivity()).showDialog();

((TestDialogFragmentActivity)getActivity()).showDialog();

}

});

return v;

}

}

// AlertDialog()

public static class MyAlertDialogFragment extends DialogFragment {

    public static MyAlertDialogFragment newInstance(int title) {

        MyAlertDialogFragment frag = new MyAlertDialogFragment();

        Bundle args = new Bundle();

        args.putInt("title", title);

        frag.setArguments(args);

        return frag;

    }

    @Override

    public Dialog onCreateDialog(Bundle savedInstanceState) {

        int title = getArguments().getInt("title");

        return new AlertDialog.Builder(getActivity())

                .setIcon(R.drawable.alert_dialog_icon)

                .setTitle(title)

                .setPositiveButton(R.string.alert_dialog_ok,

                    new DialogInterface.OnClickListener() {

                        public void onClick(DialogInterface dialog, int whichButton) {

                         ((TestDialogFragmentActivity)getActivity()).doPositiveClick();

                        }

                    }

                )

                .setNegativeButton(R.string.alert_dialog_cancel,

                    new DialogInterface.OnClickListener() {

                        public void onClick(DialogInterface dialog, int whichButton) {

                            ((TestDialogFragmentActivity)getActivity()).doNegativeClick();

                        }

                    }

                )

                .create();

    }

}

}

참고 사이트 (대중 마구마구 넣어놨어요. 참고^^)

[번역] Using DialogFragments

http://someboyj.pe.kr/blog/2012/06/12/%EB%B2%88%EC%97%AD-using-dialogfragments/

Callback to a Fragment from a DialogFragment

http://stackoverflow.com/questions/13733304/callback-to-a-fragment-from-a-dialogfragment

Using DialogFragments

http://android-developers.blogspot.kr/2012/05/using-dialogfragments.html

Android Developers / Fragment / DialogFragment / Dialogs

http://developer.android.com/reference/android/app/DialogFragment.html

http://developer.android.com/guide/components/fragments.html

http://developer.android.com/guide/topics/ui/dialogs.html

com.example.android.supportv4.app.FragmentDialogSupport

http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android-apps/4.0.3_r1/com/example/android/supportv4/app/FragmentDialogSupport.java