在android中每次屏幕的切換動會重啟Activity，所以應該在Activity銷毀前保存當前活動的狀態，在Activity再次Create的時候載入配置。在activity加上android:configChanges="keyboardHidden|orientation"屬性,就不會重啟activity.而隻是調用onConfigurationChanged(Configuration newConfig).這樣就可以在這個方法裡調整顯示方式.
MainActivity中：
public void onConfigurationChanged(Configuration newConfig) {
try {
super.onConfigurationChanged(newConfig);
if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
Log.v("Himi", "onConfigurationChanged_ORIENTATION_LANDSCAPE");
} else if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
Log.v("Himi", "onConfigurationChanged_ORIENTATION_PORTRAIT");
}
} catch (Exception ex) {
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="https://schemas.android.com/apk/res/android"
package="com.himi" android:versionCode="1" android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".MainActivity" android:label="@string/app_name"
android:configChanges="keyboardHidden|orientation">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="4" />
</manifest>
摘自 junjieking的專欄
