Android中怎么實(shí)現(xiàn)橫豎屏幕切換生命周期,針對(duì)這個(gè)問(wèn)題,這篇文章詳細(xì)介紹了相對(duì)應(yīng)的分析和解答,希望可以幫助更多想解決這個(gè)問(wèn)題的小伙伴找到更簡(jiǎn)單易行的方法。
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一、簡(jiǎn)介

二、代碼

/activityLifeCycle_3Screen/AndroidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.fry.activityLifeCycle_3Screen" 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="keyboardHidden|orientation|screenSize" android:name="com.fry.activityLifeCycle_3Screen.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> <activity android:name="com.fry.activityLifeCycle_3Screen.Activity01" ></activity> <activity android:name="com.fry.activityLifeCycle_3Screen.Activity02" android:theme="@android:style/Theme.Translucent" ></activity> </application> </manifest> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.fry.activityLifeCycle_3Screen" 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="keyboardHidden|orientation|screenSize" android:name="com.fry.activityLifeCycle_3Screen.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> <activity android:name="com.fry.activityLifeCycle_3Screen.Activity01" ></activity> <activity android:name="com.fry.activityLifeCycle_3Screen.Activity02" android:theme="@android:style/Theme.Translucent" ></activity> </application> </manifest>
核心代碼:android:configChanges="keyboardHidden|orientation|screenSize"
com.fry.activityLifeCycle_3Screen.MainActivity
package com.fry.activityLifeCycle_3Screen;
import com.fry.activityLifeCycle_3Screen.R;
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.Button;
public class MainActivity extends Activity implements OnClickListener{
private Button btn_pause;//創(chuàng)建一個(gè)button對(duì)象
private Button btn_stop;
private Button btn_offLine;
private String tag=MainActivity.class.getSimpleName();
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);//父類操作
setContentView(R.layout.activity_main);//引入名為activity_main的界面
btn_pause=(Button) findViewById(R.id.btn_pause);//找id為btn_pause的button
btn_stop=(Button) findViewById(R.id.btn_stop);//找id為btn_stop的button
btn_offLine=(Button) findViewById(R.id.btn_offLine);
btn_pause.setOnClickListener(this);
btn_stop.setOnClickListener(this);
btn_offLine.setOnClickListener(this);
/*
* activity被創(chuàng)建時(shí)執(zhí)行
*/
Log.d(tag, "onCreate");
}
/*
* activity可見時(shí)執(zhí)行
*/
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
Log.d(tag, "onStart");
}
/*
* activity交互時(shí)執(zhí)行
*/
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
Log.d(tag, "onResume");
}
/*
* activity重新可見時(shí)執(zhí)行
*/
@Override
protected void onRestart() {
// TODO Auto-generated method stub
super.onRestart();
Log.d(tag, "onRestart");
}
/*
* activity暫停時(shí)執(zhí)行
*/
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
Log.d(tag, "onPause");
}
/*
* activity停止時(shí)執(zhí)行
*/
@Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
Log.d(tag, "onStop");
}
/*
* activity銷毀時(shí)執(zhí)行
*/
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
Log.d(tag, "onDestroy");
}
/*
* activity在配置改變時(shí)執(zhí)行
* 比如橫豎屏幕的切換,鍵盤有無(wú)的切換,屏幕大小的改變
*/
@Override
public void onConfigurationChanged(Configuration newConfig) {
// TODO Auto-generated method stub
super.onConfigurationChanged(newConfig);
Log.d(tag, "onConfigurationChanged");
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.btn_pause:
Intent intent=new Intent();
intent.setClass(this, Activity02.class);
startActivity(intent);
break;
case R.id.btn_stop:
Intent intent2=new Intent();
intent2.setClass(this, Activity01.class);
startActivity(intent2);
break;
case R.id.btn_offLine://斷開狀態(tài)
finish();
default:
break;
}
}
}三、一直橫屏或者一直豎屏
很多手機(jī)游戲里面一進(jìn)去就是橫屏,而且不能切換為豎屏,那么怎么樣達(dá)到這樣的效果呢?
/activityLifeCycle_3Screen/AndroidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.fry.activityLifeCycle_3Screen" 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:screenOrientation="portrait" android:name="com.fry.activityLifeCycle_3Screen.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> <activity android:name="com.fry.activityLifeCycle_3Screen.Activity01" ></activity> <activity android:name="com.fry.activityLifeCycle_3Screen.Activity02" android:theme="@android:style/Theme.Translucent" ></activity> </application> </manifest>
android:screenOrientation="landscape"橫屏
android:screenOrientation="portrait"豎屏
四、如何獲取手機(jī)是橫屏還是豎屏

com.fry.activityLifeCycle_3Screen.MainActivity
package com.fry.activityLifeCycle_3Screen;
import com.fry.activityLifeCycle_3Screen.R;
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.Button;
public class MainActivity extends Activity implements OnClickListener{
private Button btn_pause;//創(chuàng)建一個(gè)button對(duì)象
private Button btn_stop;
private Button btn_offLine;
private String tag=MainActivity.class.getSimpleName();
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);//父類操作
setContentView(R.layout.activity_main);//引入名為activity_main的界面
btn_pause=(Button) findViewById(R.id.btn_pause);//找id為btn_pause的button
btn_stop=(Button) findViewById(R.id.btn_stop);//找id為btn_stop的button
btn_offLine=(Button) findViewById(R.id.btn_offLine);
btn_pause.setOnClickListener(this);
btn_stop.setOnClickListener(this);
btn_offLine.setOnClickListener(this);
/*
* activity被創(chuàng)建時(shí)執(zhí)行
*/
Log.d(tag, "onCreate");
}
/*
* activity可見時(shí)執(zhí)行
*/
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
Log.d(tag, "onStart");
}
/*
* activity交互時(shí)執(zhí)行
*/
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
Log.d(tag, "onResume");
}
/*
* activity重新可見時(shí)執(zhí)行
*/
@Override
protected void onRestart() {
// TODO Auto-generated method stub
super.onRestart();
Log.d(tag, "onRestart");
}
/*
* activity暫停時(shí)執(zhí)行
*/
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
Log.d(tag, "onPause");
}
/*
* activity停止時(shí)執(zhí)行
*/
@Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
Log.d(tag, "onStop");
}
/*
* activity銷毀時(shí)執(zhí)行
*/
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
Log.d(tag, "onDestroy");
}
/*
* activity在配置改變時(shí)執(zhí)行
* 比如橫豎屏幕的切換,鍵盤有無(wú)的切換,屏幕大小的改變
*/
@Override
public void onConfigurationChanged(Configuration newConfig) {
// TODO Auto-generated method stub
super.onConfigurationChanged(newConfig);
Log.d(tag, "onConfigurationChanged");
int width=getWindowManager().getDefaultDisplay().getWidth();
int height=getWindowManager().getDefaultDisplay().getHeight();
if(width>height) Log.d(tag, "landscape");
else Log.d(tag, "portrait");
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.btn_pause:
Intent intent=new Intent();
intent.setClass(this, Activity02.class);
startActivity(intent);
break;
case R.id.btn_stop:
Intent intent2=new Intent();
intent2.setClass(this, Activity01.class);
startActivity(intent2);
break;
case R.id.btn_offLine://斷開狀態(tài)
finish();
default:
break;
}
}
}/activityLifeCycle_3Screen/AndroidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.fry.activityLifeCycle_3Screen" 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="keyboardHidden|orientation|screenSize" android:name="com.fry.activityLifeCycle_3Screen.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> <activity android:name="com.fry.activityLifeCycle_3Screen.Activity01" ></activity> <activity android:name="com.fry.activityLifeCycle_3Screen.Activity02" android:theme="@android:style/Theme.Translucent" ></activity> </application> </manifest>
關(guān)于Android中怎么實(shí)現(xiàn)橫豎屏幕切換生命周期問(wèn)題的解答就分享到這里了,希望以上內(nèi)容可以對(duì)大家有一定的幫助,如果你還有很多疑惑沒有解開,可以關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道了解更多相關(guān)知識(shí)。
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