#18 (Intent 1: 화면 이동)

- layout화면을 두개 만들고 버튼을 누르면 화면 이동.

** AndroidManifest.xml 에 등록해야 함.

 

   →

(1) activity_main.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"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/btn1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="다른액티비티로 전환" />

</RelativeLayout>

 

(2) sub.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="vertical"
    android:gravity="center_horizontal"
    >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/dog1" />

    <Button
        android:id="@+id/subBtn1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="메인액티비티로 이동" />

</LinearLayout>

 

 

(3) AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.test18_intent1"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.test18_intent1.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <!-- 서버 액티비티 등록하기 -->
        <!-- android:label="subActivity" 타이틀 -->
        <activity
            android:name="com.example.test18_intent1.SubActivity"
            android:label="subActivity"
            >            
        </activity>

</application>

</manifest>

 

 

(4) MainActivity.java

 [[ Activity ]]
 - 하나의 윈도우와 비슷한 개념(하나의 화면)
 - 다른 액티비티로 전환하려면 인텐트(Intent)를 이용해야 한다.
 - 다른 액티비티를 사용할때는 AndroidManifest.xml에 액티비티를 등록해야 한다.

 

package com.example.test18_intent1;

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 {
    Button btn;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn = (Button) findViewById(R.id.btn1);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                // 다른 액티비티로 전환하려면 인텐트를 이용해야 한다.
                // new Intent(자신의 액티비티, Class 호출할 액티비티-클래스타입으로 넘겨야 한다. .class하면
                // Class타입으로 .)
                Intent intent = new Intent(MainActivity.this, SubActivity.class);
                startActivity(intent);

            }
        });
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
}

 

(5) SubActivity.java

package com.example.test18_intent1;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;

public class SubActivity extends Activity{
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        //보여질 뷰설정
        setContentView(R.layout.sub);
        findViewById(R.id.subBtn1).setOnClickListener(new View.OnClickListener() {            
            @Override
            public void onClick(View v) {
                finish();//액티비티 종료--> 메인액티비티로 이동.               
            }
        });
    }
}