【Android】自动判断调试环境决定是否打印日志

【关键词】

日志

调试环境

【问题】

打包后，忘记了设置

LogUtil.DEBUG_MODE
=false;

，导致日志还可见，有没有什么办法自动判断运行环境来决定是否打印日志？


【解决方案】

eclipse特性：直接通过eclipse运行的时候，其debug属性为true，通过eclipse的导出功能打包时，其debug为false；
使用

LogUtil.isApkDebugable()

方法需要传入上下文，可以通过继承
Application并配置Manifest来实现；


【代码】

配置Manifest

<application

android:name="com.example.loutest.LouApp"

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme">

<activity

android:name=".MainActivity"

android:label="@string/app_name">

<intent-filter>

<actionandroid:name="android.intent.action.MAIN"/>

<categoryandroid:name="android.intent.category.LAUNCHER"/>

</intent-filter>

</activity>

</application>

Application

publicclassLouAppextendsApplication{

publicstaticbooleanDEBUG;

@Override

publicvoidonCreate(){

//根据context判断debugable

DEBUG=ToolUtil.isApkDebugable(this);

super.onCreate();

}

}

日志帮助类

publicclassLogUtil{

//privatestaticfinalbooleanDEBUG_MODE=true;//之前是手动配置；

privatestaticfinalbooleanDEBUG_MODE=LouApp.DEBUG;//现在是自动判断；

privatestaticfinalStringTAG="Lou";

publicstaticvoidd(Stringtag,Stringmsg){if(DEBUG_MODE){Log.d(tag,msg);}}

publicstaticvoide(Stringtag,Stringmsg){if(DEBUG_MODE){Log.e(tag,msg);}}

publicstaticvoidi(Stringtag,Stringmsg){if(DEBUG_MODE){Log.i(tag,msg);}}

publicstaticvoidv(Stringtag,Stringmsg){if(DEBUG_MODE){Log.v(tag,msg);}}

publicstaticvoidw(Stringtag,Stringmsg){if(DEBUG_MODE){Log.w(tag,msg);}}

publicstaticvoidd(Stringmsg){d(TAG,msg);}

publicstaticvoide(Stringmsg){e(TAG,msg);}

publicstaticvoidi(Stringmsg){i(TAG,msg);}

publicstaticvoidv(Stringmsg){v(TAG,msg);}

publicstaticvoidw(Stringmsg){w(TAG,msg);}

}

判断Apk是否是Debugable

publicclassToolUtil{

publicstaticbooleanisApkDebugable(Contextcontext){

try{

ApplicationInfoinfo=context.getApplicationInfo();

return(info.flags&ApplicationInfo.FLAG_DEBUGGABLE)!=0;

}catch(Exceptione){

}

returnfalse;

}

publicstaticbooleanisApkDebugable(Contextcontext,StringpackageName){

try{

PackageInfopackageInfo=context.getPackageManager().getPackageInfo(packageName,1);

ApplicationInfoinfo=packageInfo.applicationInfo;

return(info.flags&ApplicationInfo.FLAG_DEBUGGABLE)!=0;

}catch(Exceptione){

}

returnfalse;

}

}

【参考资料】

《Android应用程序的debug属性》