【Activity】AndroidManifest.xml中android:configChanges以及Activity的生命周期实测

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package com.horsttnann.life;import android.app.Activity;import android.content.Intent;import android.content.res.Configuration;import android.os.Bundle;import android.util.Log;import android.view.View;import android.view.View.OnClickListener;import android.widget.TextView;public class MainActivity extends Activity {    private static final String TAG = MainActivity.class.getSimpleName();    private TextView mTextView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Log.d(TAG, "onCreate...");        findViews();    }    private void findViews() {        mTextView = (TextView) findViewById(R.id.tv);        mTextView.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View arg0) {                Intent intent = new Intent(MainActivity.this, SecondActivity.class);                startActivity(intent);            }        });    }    @Override    protected void onRestoreInstanceState(Bundle savedInstanceState) {        super.onRestoreInstanceState(savedInstanceState);        Log.d(TAG, "onRestoreInstanceState...");    }    @Override    protected void onRestart() {        super.onRestart();        Log.d(TAG, "onRestart...");    }    @Override    protected void onStart() {        super.onStart();        Log.d(TAG, "onStart...");    }    @Override    protected void onResume() {        super.onResume();        Log.d(TAG, "onResume...");    }    @Override    protected void onSaveInstanceState(Bundle outState) {        super.onSaveInstanceState(outState);        Log.d(TAG, "onSaveInstanceState...");    }    @Override    protected void onPause() {        super.onPause();        Log.d(TAG, "onPause...");    }    @Override    protected void onStop() {        super.onStop();        Log.d(TAG, "onStop...");    }    @Override    protected void onDestroy() {        super.onDestroy();        Log.d(TAG, "onDestroy...");    }    @Override    public void onConfigurationChanged(Configuration newConfig) {        super.onConfigurationChanged(newConfig);        Log.d(TAG, "onConfigurationChanged...");    }}

第一种情况，不配置android:configChanges。

        <activity            android:name="com.horsttnann.life.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>

例子1：

进入MainActivity

03-25 09:51:56.485: D/MainActivity(10495): onCreate...
03-25 09:51:56.485: D/MainActivity(10495): onStart...
03-25 09:51:56.485: D/MainActivity(10495): onResume...

按返回键

03-25 09:54:33.875: D/MainActivity(10495): onPause...
03-25 09:54:33.975: D/MainActivity(10495): onStop...
03-25 09:54:33.985: D/MainActivity(10495): onDestroy...

例子2：

进入MainActivity

03-25 09:55:13.525: D/MainActivity(10495): onCreate...
03-25 09:55:13.525: D/MainActivity(10495): onStart...
03-25 09:55:13.525: D/MainActivity(10495): onResume...

从竖屏切换到横屏

03-25 09:55:44.145: D/MainActivity(10495): onSaveInstanceState...
03-25 09:55:44.145: D/MainActivity(10495): onPause...
03-25 09:55:44.145: D/MainActivity(10495): onStop...
03-25 09:55:44.145: D/MainActivity(10495): onDestroy...
03-25 09:55:44.185: D/MainActivity(10495): onCreate...
03-25 09:55:44.185: D/MainActivity(10495): onStart...
03-25 09:55:44.185: D/MainActivity(10495): onRestoreInstanceState...
03-25 09:55:44.185: D/MainActivity(10495): onResume...

再从横屏切换到竖屏

03-25 09:56:02.855: D/MainActivity(10495): onSaveInstanceState...
03-25 09:56:02.855: D/MainActivity(10495): onPause...
03-25 09:56:02.855: D/MainActivity(10495): onStop...
03-25 09:56:02.855: D/MainActivity(10495): onDestroy...
03-25 09:56:02.915: D/MainActivity(10495): onCreate...
03-25 09:56:02.915: D/MainActivity(10495): onStart...
03-25 09:56:02.915: D/MainActivity(10495): onRestoreInstanceState...
03-25 09:56:02.915: D/MainActivity(10495): onResume...

例子3:

进入MainActivity

03-25 10:14:09.919: D/MainActivity(5354): onCreate...
03-25 10:14:09.919: D/MainActivity(5354): onStart...
03-25 10:14:09.919: D/MainActivity(5354): onResume...

切换到SecondActivity

03-25 10:14:13.509: D/MainActivity(5354): onSaveInstanceState...
03-25 10:14:13.509: D/MainActivity(5354): onPause...
03-25 10:14:13.629: D/MainActivity(5354): onStop...

切回MainActivity

03-25 10:15:17.549: D/MainActivity(5354): onRestart...
03-25 10:15:17.549: D/MainActivity(5354): onStart...
03-25 10:15:17.549: D/MainActivity(5354): onResume...

例子4：

进入MainActivity

03-25 10:16:05.329: D/MainActivity(5354): onCreate...
03-25 10:16:05.329: D/MainActivity(5354): onStart...
03-25 10:16:05.339: D/MainActivity(5354): onResume...

切到Home

03-25 10:16:18.059: D/MainActivity(5354): onSaveInstanceState...
03-25 10:16:18.059: D/MainActivity(5354): onPause...
03-25 10:16:18.199: D/MainActivity(5354): onStop...

切回MainActivity

03-25 10:16:34.649: D/MainActivity(5354): onRestart...
03-25 10:16:34.649: D/MainActivity(5354): onStart...
03-25 10:16:34.649: D/MainActivity(5354): onResume...

第一种情况，配置android:configChanges。

<activity            android:name="com.horsttnann.life.MainActivity"            android:configChanges="orientation|keyboardHidden|screenSize"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>

例子1：

进入MainActivity

03-25 10:18:24.309: D/MainActivity(6086): onCreate...
03-25 10:18:24.309: D/MainActivity(6086): onStart...
03-25 10:18:24.319: D/MainActivity(6086): onResume...

竖屏切横屏

03-25 10:19:43.119: D/MainActivity(6282): onConfigurationChanged...

横屏切竖屏

03-25 10:20:14.069: D/MainActivity(6282): onConfigurationChanged...

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