1 不設(shè)置Activity的android:configChanges時(shí)，切屏?xí)匦抡{(diào)用各個(gè)生命周期，切橫屏?xí)r會(huì)執(zhí)行一次，切豎屏?xí)r會(huì)執(zhí)行兩次。

2 設(shè)置Activity的android:configChanges="orientation"時(shí)，切屏還是會(huì)重新調(diào)用各個(gè)生命周期，切橫、豎屏?xí)r只會(huì)執(zhí)行一次。

3、設(shè)置Activity的android:configChanges="orientation|keyboardHidden"時(shí)，切屏不會(huì)重新調(diào)用各個(gè)生命周期，只會(huì)執(zhí)行onConfigurationChanged方法。

4 但是，自從Android 3.2（API 13），在設(shè)置Activity的android:configChanges="orientation|keyboardHidden"后，還是一樣 會(huì)重新調(diào)用各個(gè)生命周期的。因?yàn)?/span>screen size也開(kāi)始跟著設(shè)備的橫豎切換而改變。所以，在AndroidManifest.xml里設(shè)置的MiniSdkVersion和 TargetSdkVersion屬性大于等于13的情況下，如果你想阻止程序在運(yùn)行時(shí)重新加載Activity，除了設(shè)置"orientation"， 你還必須設(shè)置"ScreenSize"。

CONFIG_FONT_SCALE
CONFIG_MCC
CONFIG_MNC
CONFIG_LOCALE
CONFIG_TOUCHSCREEN
CONFIG_KEYBOARD
CONFIG_NAVIGATION
CONFIG_ORIENTATION

mcc:移動(dòng)國(guó)家號(hào)碼,由三位數(shù)字組成，每個(gè)國(guó)家都有自己獨(dú)立的MCC,可以識(shí)別手機(jī)用戶(hù)所屬?lài)?guó)家。

mnc:移動(dòng)網(wǎng)號(hào)，在一個(gè)國(guó)家或者地區(qū)中，用于區(qū)分手機(jī)用戶(hù)的服務(wù)商。

locale:用戶(hù)所在地區(qū)發(fā)生變化。

touchscreen:The touchscreen has changed. (This should never normally happen.)

keyboard:鍵盤(pán)模式發(fā)生變化，例如：用戶(hù)接入外部鍵盤(pán)輸入

keyboardHidden:用戶(hù)打開(kāi)手機(jī)硬件鍵盤(pán)。

navigation: The navigation type has changed. (This should never normally happen.)

orientation:設(shè)備旋轉(zhuǎn)，橫向顯示和豎向顯示模式切換。

fontScale:全局字體大小縮放發(fā)生改變。

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

??? package="com.itheima.kof97"

??? android:versionCode="1"

??? android:versionName="1.0" >

?

??? <uses-sdk

??????? android:minSdkVersion="8"

??????? android:targetSdkVersion="19" />

?

??? <application

??????? android:allowBackup="true"

??????? android:icon="@drawable/ic_launcher"

??????? android:label="@string/app_name"

??????? android:theme="@style/AppTheme" >

??????? <activity

??????????? android:name="com.itheima.kof97.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>

??? </application>

?

</manifest>

<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:layout_centerHorizontal="true"

??????? android:layout_width="wrap_content"

??????? android:layout_height="wrap_content"

??????? android:onClick="click"

??????? android:text="重拳"/>

???

??? <TextView

??????? android:id="@+id/tv_blood"

??????? android:layout_width="wrap_content"

??????? android:layout_height="wrap_content"

??????? android:layout_centerHorizontal="true"

??????? android:layout_centerVertical="true"

??????? android:text="100"/>

???

</RelativeLayout>

package com.itheima.kof97;

?

import android.app.Activity;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.widget.TextView;

import android.widget.Toast;

?

/**

?* 默認(rèn)情況下橫豎屏切換activity會(huì)銷(xiāo)毀然后重新創(chuàng)建

?* @author toto

?*/

public class MainActivity extends Activity {

???????? private TextView tv_blood;

???????? private int blood = 100;

????????

???????? private static String TAG = "android:Config";

????????

???????? @Override

???????? protected void onCreate(Bundle savedInstanceState) {

?????????????????? super.onCreate(savedInstanceState);

?????????????????? Log.i(TAG, "onCreate");

?????????????????? setContentView(R.layout.activity_main);

?????????????????? tv_blood = (TextView) findViewById(R.id.tv_blood);

???????? }

?

???????? public void click(View view) {

?????????????????? blood--;

?????????????????? tv_blood.setText("對(duì)方的生命值：" + blood);

?????????????????? if (blood < 0) {

??????????????????????????? Toast.makeText(this, "K.O.!", 1).show();

?????????????????? }

???????? }

????????

???????? //被銷(xiāo)毀的時(shí)候調(diào)用的方法

???????? @Override

???????? protected void onDestroy() {

?????????????????? Log.i(TAG, "onDestroy");

?????????????????? super.onDestroy();

???????? }

????????

???????? //當(dāng)activity界面用戶(hù)可見(jiàn)的時(shí)候調(diào)用的方法

???????? @Override

???????? protected void onStart() {

?????????????????? Log.i(TAG, "onStart");

?????????????????? super.onStart();

???????? }

????????

???????? protected void onRestart() {

?????????????????? Log.i(TAG, "onRestart");

?????????????????? super.onRestart();

???????? }

????????

???????? //當(dāng)activity界面用戶(hù)不可見(jiàn)的時(shí)候調(diào)用的方法

???????? protected void onStop() {

?????????????????? Log.i(TAG, "onStop");

?????????????????? super.onStop();

???????? }

????????

???????? //界面開(kāi)始獲取到焦點(diǎn)對(duì)應(yīng)的方法。 (界面按鈕可以被點(diǎn)擊，文本框可以輸入內(nèi)容）

???????? protected void onResume() {

?????????????????? Log.i(TAG, "onResume");

?????????????????? super.onResume();

???????? }

????????

???????? //界面失去焦點(diǎn)對(duì)應(yīng)的方法（暫停）（按鈕不可被點(diǎn)擊，文本框不可輸入內(nèi)容，但是界面用戶(hù)仍然能看見(jiàn)）

???????? protected void onPause() {

?????????????????? Log.i(TAG, "onPause");

?????????????????? super.onPause();

???????? }

}

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

??? package="com.itheima.kof97"

??? android:versionCode="1"

??? android:versionName="1.0" >

?

??? <uses-sdk

??????? android:minSdkVersion="8"

??????? android:targetSdkVersion="19" />

?

??? <application

??????? android:allowBackup="true"

??????? android:icon="@drawable/ic_launcher"

??????? android:label="@string/app_name"

??????? android:theme="@style/AppTheme" >

??????? <activity

??????????? android:configChanges="orientation|keyboardHidden|screenSize"

??????????? android:name="com.itheima.kof97.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>

??? </application>

?

</manifest>