안드로이드 RotationTestApp 프로젝트

안드로이드 RotationTestApp

1 개요

• 주레이아웃(activity_main)에 2개의 RelativeLayout를 추가
• 회전 이벤트 발생시, 화면영역의 높이와 너비를 구하여 현재 방향이 가로인지 세로인지 파악하고 두 RelativeLayout을 보기 좋게 재배치

2 새 프로젝트 생성

• File --- New --- Android Application Project
• "New Android Application" --- Application Name: Rotation Test App --- [Next >]
• "Configure Project" --- [Next >]
• "Configure Launcher Icon" --- [Next >]
• "Create Activity" --- [Next >]
• "New Blank Activity" --- [Finish]

여기까지 하면 왼쪽 Package Explorer에 RotationTestApp이라는 프로젝트가 생기고 activity_main.xml이 열린다. 화면에는 앱 이름 Rotation Test App과 함께 Hello world! 도 찍혀 있다...

3 AndroidManifest.xml 수정

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

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

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.rotationtestapp.MainActivity"
            android:configChanges="orientation|screenSize"
            android:label="@string/app_name"
            android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

4 activity_main.xml

• RotationTestApp > res > layout > 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"
    android:background="#FFF" >

    <RelativeLayout
        android:id="@+id/relativeLayout1"
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:background="#F00" >

        <Button
            android:id="@+id/button1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:text="Button" />
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/relativeLayout2"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#00F" >

        <TextView
            android:id="@+id/textView1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:text="Text" />
    </RelativeLayout>

</RelativeLayout>

5 MainActivity.java 수정

package com.example.rotationtestapp;

import android.os.Bundle;
import android.app.Activity;
import android.content.res.Configuration;
import android.graphics.Point;
import android.widget.RelativeLayout;

public class MainActivity extends Activity {
    private RelativeLayout layout1; 
    private RelativeLayout layout2; 

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        layout1 = (RelativeLayout) findViewById(R.id.relativeLayout1);
        layout2 = (RelativeLayout) findViewById(R.id.relativeLayout2);
        AdjustLayout();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        AdjustLayout();
    }

    private void AdjustLayout() {
        Point point = new Point();
        getWindowManager().getDefaultDisplay().getSize(point);
        boolean is_landscape = point.x > point.y;

        RelativeLayout.LayoutParams layparam1 = (RelativeLayout.LayoutParams) layout1.getLayoutParams();
        RelativeLayout.LayoutParams layparam2 = (RelativeLayout.LayoutParams) layout2.getLayoutParams();

        if(is_landscape) {
            layparam1.width = point.y;
            layparam1.height = point.y;
            layparam1.leftMargin = point.x - point.y;
            layparam1.topMargin = 0;
            layparam2.width = point.x - point.y;
            layparam2.height = point.y;
            layparam2.leftMargin = 0;
            layparam2.topMargin = 0;
        }
        else {
            layparam1.width = point.x;
            layparam1.height = point.x;
            layparam1.leftMargin = 0;
            layparam1.topMargin = point.y - point.x;
            layparam2.width = point.x;
            layparam2.height = point.y - point.x;
            layparam2.leftMargin = 0;
            layparam2.topMargin = 0;
        }          
    }
}

6 같이 보기

• 안드로이드 회전 막기
• 안드로이드 MyFirstApp 프로젝트