Android判断某个应用程序是否在后台运行？

Android判断某个应用程序是否在后台运行？

 (2012-08-04 17:41:11)

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分类： Android开发

如果在做类似OA项目的时候，就会考虑到推数据的情况，这时候我们会判断应用程序是否在后台运行，为此我将工具类代码分享下，希望给大家带来帮助。

import static android.app.ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND;

import static android.app.ActivityManager.RunningAppProcessInfo.IMPORTANCE_VISIBLE;

private boolean isBackgroundRunning() {

String processName = "match.android.activity";

ActivityManager activityManager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);

KeyguardManager keyguardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);

if (activityManager == null) return false;

// get running application processes

List<ActivityManager.RunningAppProcessInfo> processList = activityManager.getRunningAppProcesses();

for (ActivityManager.RunningAppProcessInfo process : processList) {

if (process.processName.startsWith(processName)) {

boolean isBackground = process.importance != IMPORTANCE_FOREGROUND && process.importance != IMPORTANCE_VISIBLE;

boolean isLockedState = keyguardManager.inKeyguardRestrictedInputMode();

if (isBackground || isLockedState) return true;

else return false;

}

}

return false;

}