안드로이드: 기초정리(2)

Android APIs Reference

안드로이드: 기초정리(1)

안드로이드: 기초정리(2)

안드로이드: 기초정리(3)

안드로이드: 기초정리(4)

추천자료: 안드로이드 개발시 100가지 팁

추천자료: [Android] 정보 정리

추천자료: Android,Easy Tutorials...

04. 레이아웃

1. 리니어레이아웃
XML파일  res/layout -> orientation에 horizontal/vertical선택가능	<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:orientation="horizontal"  >    .........    ......... </LinearLayout>

2. 릴레티브 레이아웃

XML파일  res/layout * 특정 컴포넌트기준의 상대위치 android:layout_toRightOf="@id/???" android:layout_toLeftOf="@id/???" android:layout_above="@id/???" android:layout_below="@id/???" * 특정 컴포넌트와 변 맞추기 android:layout_alignLeft="@id/???" android:layout_alignRight="@id/???" android:layout_alignTop="@id/???" android:layout_alignBottom="@id/???" * 기준점을 잡은 컴포넌트에 추가방향지정 android:layout_alignParentLeft="true" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:layout_alignParentBottom="true" android:layout_centerInVertical="true" android:layout_centerInHorizontal="true" android:layout_centerInParent="true"

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"  >     <TextView         android:id="@+id/textView1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignParentLeft="true"         android:layout_alignParentTop="true"         android:text="URL" />     <EditText         android:id="@+id/editText1"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:layout_toRightOf="@id/textView1"         android:ems="10" ><requestFocus /></EditText>     <Button         android:id="@+id/button1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="취소"         android:layout_below="@id/editText1"         android:layout_alignParentRight="true" />     <Button         android:id="@+id/button2"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="OK"         android:layout_below="@id/editText1"         android:layout_toLeftOf="@id/button1" /> </RelativeLayout>

3. 프레임 레이아웃 -> 형태상 모든 레이아웃중 가장 단순. -> 프레임 레이아웃내에 다른 레이아웃을 차일드로 포함가능. -> 차일드를 배치하는 규칙이 따로없고, 레이아웃내 모든 차일드는 프레임의 좌측상단에 나타난다. -> 먼저배치한 차일드(컴포넌트)가 나중에 배치된 차일드 밑에 깔린다.

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent" >     <LinearLayout ... ... ... ... ... ...   >         <TextView ... ... ... ... ... ... /></LinearLayout>     <LinearLayout ... ... ... ... ... ... >         <TextView ... ... ... ... ... ... />     </LinearLayout> </FrameLayout>

4. 테이블 레이아웃

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:stretchColumns="*" >     <TableRow         android:id="@+id/tableRow1"         android:layout_width="wrap_content"         android:layout_height="wrap_content" >         <Button             android:id="@+id/button1"             style="?android:attr/buttonStyleSmall"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="1" />         <Button             android:id="@+id/button2"             style="?android:attr/buttonStyleSmall"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="2" />         <Button             android:id="@+id/button3"             style="?android:attr/buttonStyleSmall"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="3" />         <Button             android:id="@+id/buttonb"             style="?android:attr/buttonStyleSmall"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="4" />     </TableRow> <!--1행-->     <TableRow         android:id="@+id/tableRow2"         android:layout_width="wrap_content"         android:layout_height="wrap_content" >         <Button             android:id="@+id/button12"             style="?android:attr/buttonStyleSmall"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="위치지정"             android:layout_column="1" />         <Button             android:id="@+id/buttonb"             style="?android:attr/buttonStyleSmall"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="확장"             android:layout_span="2" />     </TableRow> <!--2행--> </TableLayout>

05. 위젯과 어댑터뷰

1. 위젯과 이벤트 처리 - 유형1 -> 자바코드에서 이벤트 연결
① res/layout	... ... ... <Button         android:id="@+id/eventButton1" ... ... ... ... ... ...         android:text="이벤트처리 예시1" /> <Button         android:id="@+id/eventButton2" ... ... ... ... ... ...         android:text="이벤트처리 예시2" /> ... ... ...
② src/패키지	import android.widget.Toast; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class ActivityMain extends Activity implements OnClickListener { Button bt1, bt2 ; public void eventXXX(View v) { bt1 = (Button)findViewById(R.id.eventButton1); bt1.setOnClickListener(this); } public void onClick(View v) { int buttonID = v.getId(); switch ( buttonID ) { case R.id.eventButton1: Toast.makeText(context, "클릭확인", Toast.LENGTH_LONG).show(); break; } } //annonymousclass         bt2 = (Button)findViewById(R.id.eventbutton2);         OnClickListener bh2 = new OnClickListener() { public void onClick(View v2) { b2 = (Button)v2; b2.setBackgroundColor(Color.GREEN); b2.setTextColor(Color.RED); b2.setText("버튼2 클릭"); } }; bt2.setOnClickListener(bh2); }

2. 위젯과 이벤트 처리 - 유형2 -> 레이아웃에서 이벤트 연결
① res/layout	... ... ... <Button         android:id="@+id/clickToEvent" ... ... ... ... ... ...         android:onClick="eventXXX"         android:text="이벤트처리 예시2" /> ... ... ...
② src/패키지	import android.widget.Toast; public class ActivityMain extends Activity implements OnClickListener { public void eventXXX(View v) { int buttonID = v.getId(); switch ( buttonID ) { case R.id.clickToEvent: Toast.makeText(context, "클릭확인", Toast.LENGTH_LONG).show(); break; } } }

3. 리스트뷰 ① 각 아이템 항목을 XML에 적의 ② ArrayAdapter객체를 생성해서 XML 연결. ③ 리스트뷰_객체의 setAdapter매소드 -> 데이터 그룹에 대한 각각의 정보들을 항목별로 출력 -> ArrayAdapter클래스를 사용하거나 재정의(오버라이드)해서 구현. -> Adapter인터페이스로 데이터접근 -> 추천자료: http://www.tipssoft.com/bulletin/tb.php/FAQ/918
① res/layout activity_main.xml	<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent" >     <RelativeLayout         android:id="@+id/listshow"         android:layout_width="match_parent"         android:layout_height="match_parent"         android:visibility="visible" >         <TextView             android:id="@+id/textView1"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_alignParentTop="true"             android:layout_centerHorizontal="true"             android:background="#33000000"             android:gravity="center"             android:text="&lt;차 리스트>"             android:textColor="#0000FF"             android:textSize="12dip" />         <ListView             android:id="@+id/listView1"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_below="@+id/textView1"             android:layout_centerHorizontal="true" >         </ListView>     </RelativeLayout>     <RelativeLayout         android:id="@+id/detailshow"         android:layout_width="match_parent"         android:layout_height="match_parent"         android:visibility="invisible" >         <TextView             android:id="@+id/detail_car_nameTV"             android:layout_width="fill_parent"             android:layout_height="wrap_content"             android:layout_alignParentTop="true"             android:gravity="center"             android:text="차종류"             android:textAppearance="?android:attr/textAppearanceLarge" />         <ImageView             android:id="@+id/detail_car_imageIV"             android:layout_width="fill_parent"             android:layout_height="fill_parent"             android:layout_below="@id/detail_car_nameTV"             android:scaleType="fitXY"             android:src="@drawable/car4" />         <TextView              android:background="#11FFFFFF"             android:gravity="center"             android:layout_width="fill_parent"             android:layout_height="wrap_content"             android:text="이미지를 터치하면 리스트로 이동"             android:layout_alignParentBottom="true"             android:textColor="#44FFFFFF"             android:textSize="10dip"             android:textStyle="bold"              />     </RelativeLayout> </FrameLayout>
② res/layout list_child_button.xml list_child_edittext.xml list_child_textview.xml simple_list_child.xml	<?xml version="1.0" encoding="utf-8"?> <Button xmlns:android="http://schemas.android.com/apk/res/android"     android:paddingLeft="10px"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:text="차 종류"     android:textColor="#555500"     android:textSize="13dip"     android:textStyle="bold" /> <?xml version="1.0" encoding="utf-8"?> <EditText xmlns:android="http://schemas.android.com/apk/res/android"         android:layout_width="match_parent"     android:layout_height="match_parent"     android:text="CAR NAME"     android:textColor="#555500"     android:textSize="13dip"     android:textStyle="bold" /> <?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android"     android:paddingLeft="15px"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:text="CAR NAME"     android:textColor="#555500"     android:textSize="13dip"     android:textStyle="bold" /> <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="horizontal" >     <ImageView         android:scaleType="fitXY"         android:padding="7px"         android:id="@+id/simple_car_imageIV"         android:layout_width="70px"         android:layout_height="70px"         android:src="@drawable/car1" />     <TextView         android:textStyle="bold"         android:textSize="10pt"         android:paddingLeft="10px"         android:paddingTop="25px"         android:id="@+id/simple_car_nameTV"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:text="CARNAME" /> </LinearLayout>
③ src/패키지 -> 해당 코드에서는res/drawable 폴더내에 car1~6, plane1~4인 이미지 파일이 있어야 한다.(파일포맷무관)	//package com.ex.adapterview.listview; import java.util.ArrayList; import java.util.HashMap; import java.util.Map; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.RelativeLayout; import android.widget.SimpleAdapter; import android.widget.TextView; public class MainActivity extends Activity { ListView listview; //XML리소스를 연결할때 사용할 리스트뷰 //출렬될 데이터 객체생성 String[] carNameArray = { "SM5", "SM7", "JAGUAR", "SM9", "AVANTE",      "LEXUS", "BMW", "HONDA"}; int[] carImageIdArray = { R.drawable.car1, R.drawable.car2, R.drawable.car3,     R.drawable.car4, R.drawable.car5, R.drawable.car6,     R.drawable.plane1, R.drawable.plane2 }; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); listview = (ListView) findViewById(R.id.listView1); //어댑터-------------------- ArrayAdapter arrayAdapter = new ArrayAdapter(this, R.layout.list_child_textview, carNameArray); ArrayList simpleData = new ArrayList(); for (int i = 0; i < carNameArray.length; i++) { HashMap carMap = new HashMap(); carMap.put("car_name", carNameArray[i]); carMap.put("car_image", carImageIdArray[i]); simpleData.add(carMap); } String[] from = { "car_name", "car_image" }; int[] to = { R.id.simple_car_nameTV, R.id.simple_car_imageIV }; SimpleAdapter simpleAdapter = new SimpleAdapter(this, simpleData, R.layout.simple_list_child, from, to); //어댑터 & 아이템 클릭 이벤트 처리 연결. listview.setAdapter(simpleAdapter); listview.setOnItemClickListener(new ListViewHandler()); RelativeLayout listshow = (RelativeLayout) findViewById(R.id.listshow); RelativeLayout detailshow = (RelativeLayout) findViewById(R.id.detailshow); listshow.setVisibility(View.VISIBLE); //리스트보기 활성화로 초기화 detailshow.setVisibility(View.INVISIBLE); //아이템별 상세보기 비활성화로 초기화 ImageView detail_car_imageIV = (ImageView)findViewById(R.id.detail_car_imageIV); detail_car_imageIV.setOnTouchListener(new ImageTouchHandler()); } //이벤트 핸들러---------------------------------------- //이미지 터치-------------------- public class ImageTouchHandler implements OnTouchListener { public boolean onTouch(View v, MotionEvent event) { RelativeLayout listshow = (RelativeLayout) findViewById(R.id.listshow); RelativeLayout detailshow = (RelativeLayout) findViewById(R.id.detailshow); detailshow.setVisibility(View.INVISIBLE); listshow.setVisibility(View.VISIBLE); return true; } } //리스트뷰 클릭-------------------- //리스트뷰에 리스너 인터페이스를 할당 및 정의해서 설정가능 public class ListViewHandler implements OnItemClickListener { public void onItemClick(AdapterView<?> av, View view, int index, long itemid) { Map clickItem = (Map) listview.getItemAtPosition(index); TextView textView1 = (TextView) findViewById(R.id.textView1); String car_name = (String) clickItem.get("car_name"); int car_image = (Integer) clickItem.get("car_image"); textView1.setText(car_name + "[" + car_image + "]"); ImageView detail_car_imageIV = (ImageView)findViewById(R.id.detail_car_imageIV); TextView detail_car_nameTV = (TextView)findViewById(R.id.detail_car_nameTV); detail_car_imageIV.setImageResource(car_image); detail_car_nameTV.setText(car_name); //화면출력 초기값 RelativeLayout listshow = (RelativeLayout) findViewById(R.id.listshow); RelativeLayout detailshow = (RelativeLayout) findViewById(R.id.detailshow); listshow.setVisibility(View.INVISIBLE); detailshow.setVisibility(View.VISIBLE); } } //이벤트 핸들러---------------------------------------- public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } }

4. 커스텀 리스트뷰 어댑터 클래스 1. BaseAdapter 를 상속(구현) 2. DataSource갯수를 return 3. Child View객체를 return 4. ItemClick Event 시호출되는메쏘드 -> 추천자료-1. http://croute.me/413 -> 추천자료-2. http://androidhuman.tistory.com/205
① res/layout activity_main.xml	<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent" >     <RelativeLayout         android:id="@+id/listshow"         android:layout_width="match_parent"   ... ... ...         android:visibility="visible" >         <TextView             android:id="@+id/textView1"     ... ... ...     ... ... ...             android:text="&lt;차 리스트>"         <ListView             android:id="@+id/listView1"     ... ... ...     ... ... ...             android:layout_below="@+id/textView1">         </ListView>     </RelativeLayout> </FrameLayout>
② res/layout list_child.xml	<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="horizontal" >     <ImageView         android:id="@+id/simple_car_imageIV"         android:scaleType="fitXY" ... ... ...         android:src="@drawable/car1" />     <TextView         android:id="@+id/simple_car_nameTV"         android:layout_width="fill_parent"         ... ... ... ... ... ...         android:text="CARNAME" /> </LinearLayout>
③ src/패키지	//package com.exl.custom.listview; public class Car {// 리스트뷰에 출력할 항목 String car_name; int car_image_id; public Car() { } public Car(String car_name, int car_image_id) { super(); this.car_name = car_name; this.car_image_id = car_image_id; } } //package com.exl.custom.listview; import java.util.ArrayList; import android.app.Activity; import android.os.Bundle; import android.view.LayoutInflater; import android.view.Menu; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; public class MainActivity extends Activity {     ArrayList<Car> carList=new ArrayList<Car>();     public void onCreate(Bundle savedInstanceState)     {         super.onCreate(savedInstanceState);                          setContentView(R.layout.activity_main);         ListView listview=(ListView)findViewById(R.id.listView1);                          //Car(String car_name, int car_image_id)         carList.add(new Car("SM5", R.drawable.car1));         carList.add(new Car("SM6", R.drawable.car2));         carList.add(new Car("SM7", R.drawable.car3));         carList.add(new Car("SM8", R.drawable.car4));         carList.add(new Car("SM9", R.drawable.car5));         carList.add(new Car("SM10", R.drawable.car6));                  listview.setAdapter(new CarAdapter());         listview.setOnItemClickListener(new ListHandler());             }               //리스트 어댑터--------------------     public class ListHandler implements OnItemClickListener     { public void onItemClick(AdapterView<?> av, View arg1, int index, long arg3) { Car clickItem = (Car)av.getItemAtPosition(index); TextView tv = (TextView)findViewById(R.id.textView1); tv.setText(clickItem.car_name+"["+clickItem.car_image_id+"]"); }        }          public class CarAdapter extends BaseAdapter     {     public int getCount() { return carList.size(); //어댑터 크기 } public Object getItem(int index) { return carList.get(index); //인덱스번호에 해당하는 아이템 } public long getItemId(int position) { return position; //인덱스번호에 해당하는 list ID(항목ID) } //각 항목의 뷰를 생성하는 함수 public View getView(int index, View arg1, ViewGroup arg2) { LayoutInflater inflater=getLayoutInflater(); View view=inflater.inflate(R.layout.list_child, null); ImageView carIV=(ImageView)view.findViewById(R.id.simple_car_imageIV); TextView carTV=(TextView)view.findViewById(R.id.simple_car_nameTV); Car car=carList.get(index); carIV.setImageResource(car.car_image_id); carTV.setText(car.car_name); return view; }         }          public boolean onCreateOptionsMenu(Menu menu)     {         getMenuInflater().inflate(R.menu.activity_main, menu);         return true;     } }

06. 인탠트

1. 이론

인탠트 안드로이드 시스템내 전역메시지 액티비티간 인수와 반환값을 전달 데이터를 모두 주고받는 담당. 왜냐면 공유기억장소가 기본적으로 없어서 안드로이드는 스택에 의한 관리되므로 매소드에 의한 호출X VM을 넘나든다고 볼수 있다.

2. 어플리케이션내 액티비티호출 -> 액티비티2개를 이용한 예시 -> 타겟:API Lv.10
① AndroidManifest.xml -> 어플리케이션에 2개의 액티비티 등록 -> <intent-filter>를 가진 액티비티가 처음 실행시 점유권을 가진다.	<manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.ex.intent.to.sameapp"     android:versionCode="1"     android:versionName="1.0" >     <uses-sdk         android:minSdkVersion="8"         android:targetSdkVersion="10" />     <application         android:icon="@drawable/ic_launcher"         android:label="@string/app_name"         android:theme="@style/AppTheme" >         <activity             android:name=".FirstActivity"             android:label="@string/title_activity_first" >             <intent-filter>                 <action android:name="android.intent.action.MAIN" />                 <category android:name="android.intent.category.LAUNCHER" />             </intent-filter>         </activity>         <activity             android:name=".SecondActivity"             android:label="@string/title_activity_second" >         </activity>     </application> </manifest>
② res/layout -> text에 액티비티 식별을 위한 문자열삽입 -> 레이아웃의 버튼을 통해 다른 액티비티가 호출될수 있게 배치.	<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" >     <TextView         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_centerHorizontal="true"         android:layout_centerVertical="true"         android:text="FirstActivity"         tools:context=".FirstActivity" />     <Button         android:id="@+id/callB"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:layout_alignParentTop="true"         android:layout_centerHorizontal="true"         android:text="인탠트 to SameApp 액티비티 호출" /> </RelativeLayout> <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" >     <TextView         android:id="@+id/result"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_centerHorizontal="true"         android:layout_centerVertical="true"         android:text="SecondActivity"         tools:context=".FirstActivity" />     <Button         android:id="@+id/finish"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:layout_alignParentTop="true"         android:layout_centerHorizontal="true"         android:text="현재 액티비트 종료" /> </RelativeLayout>
③ src/패키지	//package com.ex.intent.to.sameapp; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.View; import android.widget.Button; public class FirstActivity extends Activity {     public void onCreate(Bundle savedInstanceState)     {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_first);                  Button callB = (Button)findViewById(R.id.callB);         callB.setOnClickListener(new View.OnClickListener()         { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(getApplicationContext(), SecondActivity.class); //인탠트에 호출시킬 액티비티설정 startActivity(intent); } });     }//public void onCreate } //package com.ex.intent.to.sameapp; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.View; import android.widget.Button; public class SecondActivity extends Activity {     public void onCreate(Bundle savedInstanceState)     {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_second);                  Button finishB = (Button)findViewById(R.id.finish);         finishB.setOnClickListener(new View.OnClickListener(){ public void onClick(View v) { finish(); } });     } }

3. 어플리케이션간 액티비티 호출 -> 트위터에서 기본카메라앱으로 촬영하는등 별개의 앱끼리 연동되게 하는것. [참조1]   [참조2]
① AndroidManifest.xml	<manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.ex.intent.to.otherapp.call"     android:versionCode="1"     android:versionName="1.0" >     <uses-sdk         android:minSdkVersion="8"         android:targetSdkVersion="10" />     <application         android:icon="@drawable/ic_launcher"         android:label="@string/app_name"         android:theme="@style/AppTheme" >         <activity             android:name=".MainActivity"             android:label="@string/title_activity_main" >             <intent-filter>                 <action android:name="android.intent.action.MAIN" />                 <category android:name="android.intent.category.LAUNCHER" />             </intent-filter>         </activity>     </application> </manifest>
② res/layout	<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" >         <TextView         android:id="@+id/textView1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_centerHorizontal="true"         android:layout_centerVertical="true"         android:text="다른APP 액티비티 호출"         tools:context=".MainActivity" />     <Button         android:id="@+id/callB"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:layout_alignParentTop="true"         android:layout_centerHorizontal="true"         android:text="다른APP의 액티비티 호출" /> </RelativeLayout>
③ src/패키지 -> intent.setAction("풀 패키지명");으로도 지정 가능. -> 기본앱이나 다른 앱말고 자신이 만든 다른 앱을 호출했다면, 호출된 액티비티는 finish()로 종료가능. -> 자신이 만든 다른 앱을 호출하는 방식을 보고 싶다면 아래의 링크 참조.  [인텐트(Intent) 입문- (1) 액티비티 호출]	//package com.ex.intent.to.otherapp.call; import android.net.Uri; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.view.View; import android.widget.Button; public class MainActivity extends Activity {     public void onCreate(Bundle savedInstanceState)    {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);                  Button callB = (Button)findViewById(R.id.callB);         callB.setOnClickListener(new View.OnClickListener()         { public void onClick(View v)                         { Intent intent = new Intent(Intent.ACTION_VIEW,                                                          Uri.parse("http://analog-green.tistory.com")); startActivity(intent); } });     } }

4. 액티비티간 인탠트 인자값 전달 IntentValueDelivery.zip -> 해당 예시는 액티비티A를 XML로 UI를구현하고 입력값을 액티비티B와 surfaceview(액티비피B소속)로 전달하는 방식이다. -> 참고자료: http://warmz.tistory.com/77
① res/layout -> activity_a.xml	<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" >     <EditText         android:id="@+id/editText1"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:layout_alignParentLeft="true"         android:layout_alignParentTop="true"         android:ems="10" />     <RadioGroup         android:id="@+id/radioGroup1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignParentLeft="true"         android:layout_below="@+id/editText1" >         <RadioButton             android:id="@+id/radioItem1"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:checked="true"             android:text="2012년" />         <RadioButton             android:id="@+id/radioItem1"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="티스토리" />         <RadioButton             android:id="@+id/radioItem2"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:checked="true"             android:text="노력과 삽질 퇴적물" />     </RadioGroup>     <Button         android:id="@+id/sendBT"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:layout_alignParentBottom="true"         android:layout_alignParentRight="true"         android:text="액티비티B로 전달" /> </RelativeLayout>
② AndroidManifest.xml	<application         android:icon="@drawable/ic_launcher"         android:label="@string/app_name"         android:theme="@style/AppTheme" >         <activity             android:name=".ActivityA"             android:label="@string/title_activity_activity" >             <intent-filter>                 <action android:name="android.intent.action.MAIN" />                 <category android:name="android.intent.category.LAUNCHER" />             </intent-filter>         </activity>         <activity             android:name=".ActivityB"             android:label="@string/title_activity_activity_b" >         </activity>     </application>
③ src/패키지/	package com.ex.intent.value.delivery; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.RadioButton; import android.widget.RadioGroup; public class ActivityA extends Activity { EditText inText; RadioGroup rGroup; RadioButton radioItem; Button sendToB;     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_a);                           //XML UI와 자바연결----------------------------------------         inText = (EditText)findViewById(R.id.editText1);         rGroup = (RadioGroup)findViewById(R.id.radioGroup1);         sendToB = (Button)findViewById(R.id.sendBT);                  //버튼입력 처리         sendToB.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(ActivityA.this, ActivityB.class); //인탠트에 호출시킬 액티비티설정 radioItem = (RadioButton)findViewById(rGroup.getCheckedRadioButtonId()); intent.putExtra("textContent", inText.getText().toString()); intent.putExtra("radioItemNAme", radioItem.getText().toString()); startActivityForResult(intent, 1); } });     }     @Override     public boolean onCreateOptionsMenu(Menu menu) {         getMenuInflater().inflate(R.menu.activity_a, menu);         return true;     } } package com.ex.intent.value.delivery; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.util.Log; import android.view.Menu; public class ActivityB extends Activity { B_surface surfaceView; private String text; private String itemName;     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_b);                           //인탠트 인자값 수신         Intent intent = getIntent();         Bundle extras = intent.getExtras();         text = intent.getStringExtra("textContent");         itemName = intent.getStringExtra("radioItemNAme");                  //생성자로 surfaceview로 인자값 전달         surfaceView = new B_surface(getApplicationContext(), text, itemName);         Log.d("class ActivityB", "text: " + this.text); Log.d("class ActivityB", "itemName: " + this.itemName);     }     @Override     public boolean onCreateOptionsMenu(Menu menu) {         getMenuInflater().inflate(R.menu.activity_b, menu);         return true;     } } package com.ex.intent.value.delivery; import android.content.Context; import android.util.Log; import android.view.SurfaceHolder; import android.view.SurfaceView; public class B_surface extends SurfaceView implements SurfaceHolder.Callback { private String text; private String itemName; public B_surface(Context context, String text, String item) { super(context); //인탠트B로 전달받은 값 this.text = text; this.itemName = item; SurfaceHolder holder = getHolder(); holder.addCallback(this); Log.d("class B_surface", "text: " + this.text); Log.d("class B_surface", "itemName: " + this.itemName); setFocusable(true); } public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) { // TODO Auto-generated method stub } public void surfaceCreated(SurfaceHolder arg0) { // TODO Auto-generated method stub } public void surfaceDestroyed(SurfaceHolder arg0) { // TODO Auto-generated method stub } }