/**
* 判断当前应用是否启动
*
* @param context
* @return
*/
public static boolean getCurrentTask(Context context) {
ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
//获取当前所有存活task的信息
List<RunningTaskInfo> appProcessInfos = activityManager.getRunningTasks(Integer.MAX_VALUE);
//遍历,若task的name与当前task的name相同,则返回true,否则,返回false
for (RunningTaskInfo process : appProcessInfos) {
if (process.baseActivity.getPackageName().equals(context.getPackageName())
|| process.topActivity.getPackageName().equals(context.getPackageName())) {
return true;
}
}
return false;
}
/**
* 返回app运行状态
*
* @param context 一个context
* @return int 1:前台 2:后台 0:不存在
*/
public static int isAppAlive(Context context) {
String packageName = PackageUtil.getAppProcessName(context);
ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningTaskInfo> listInfos = activityManager.getRunningTasks(20);
// 判断程序是否在栈顶
if (listInfos.get(0).topActivity.getPackageName().equals(packageName)) {
return 1;
} else {
// 判断程序是否在栈里
for (ActivityManager.RunningTaskInfo info : listInfos) {
if (info.topActivity.getPackageName().equals(packageName)) {
return 2;
}
}
return 0;// 栈里找不到,返回0
}
}
/**
* 判断某个界面是否在前台
*
* @param context
* @param className 某个界面名称
*/
public static boolean isActivityForeground(Context context, String className) {
if (context == null || TextUtils.isEmpty(className)) {
return false;
}
ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningTaskInfo> list = am.getRunningTasks(1);
if (list != null && list.size() > 0) {
ComponentName cpn = list.get(0).topActivity;
if (className.equals(cpn.getClassName())) {
return true;
}
}
return false;
}
android判断当前应用是否启动、app运行状态、某个界面是否在前台工具类整理
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转载自blog.csdn.net/huangwenkui1990/article/details/88052833
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