让Activity单例运行

修改AndroidManifest.xml

 

 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.go7j.sns" 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:theme="@android:style/Theme.NoTitleBar.Fullscreen" android:launchMode="singleInstance"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.DEFAULT" /> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="7" /> </manifest>

 

关键在activity中加入

 

android:launchMode="singleInstance"