动态获取android锁屏包名答案

【问题标题】：Dynamically getting android lock screen package name动态获取android锁屏包名
【发布时间】：2016-12-03 20:29:17
【问题描述】：

我需要获取 android 锁屏活动的包名。除了https://stackoverflow.com/a/16881064/2803557 之外，我没有找到任何东西，这似乎不起作用。

有没有办法获取锁屏包名

【问题讨论】：

锁屏包名是：com.android.systemui 如果你想在锁屏上显示一些东西，还有其他更好的方法来做到这一点。

标签： android lockscreen package-name

【解决方案1】：

您可以通过分析 Android 日志来确定出现在前台的任何 Activity 的包名称。例如，如果你打开了谷歌地图，点击设备的主页按钮会在日志中显示（我通常按ActivityManager 字符串过滤）。

START u0 {act=android.intent.action.MAIN cat=[android.intent.category.HOME] 
flg=0x10200000 cmp=com.android.launcher/com.android.launcher2.Launcher}

显示主屏幕的包名Activity是com.android.launcher

但是，当我单击 Nexus 4 主页按钮以显示任何应用程序的锁屏时，它永远不会显示正在启动的另一个 Activity。这让我觉得这不是我们所理解的典型Activity。

如果您查看Android 源代码KeyguardViewMediator.java 的源代码，您会发现一个名为private void doKeyguardLocked(Bundle options) 的方法。我从经验中知道，将源更改为立即从此方法返回将禁用锁屏。 KeyguardViewMediator.java的来源显示它在包com.android.keyguard中，我相信这就是你要找的包。

至于动态获取包名，对我来说似乎是不可能的。但是，如果您已经提前知道包名，则无需动态获取。

我希望这会有所帮助。

【讨论】：

【解决方案2】：

获取所有进程的列表，然后检查屏幕锁定应用程序包名称。

下面是代码：

ActivityManager activityManager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
List<ActivityManager.RunningServiceInfo> services = activityManager.getRunningServices(Integer.MAX_VALUE);

long currentMillis = Calendar.getInstance().getTimeInMillis();
Calendar cal = Calendar.getInstance();

for (ActivityManager.RunningServiceInfo info : services) {
  cal.setTimeInMillis(currentMillis-info.activeSince);
  Log.i("TAG", String.format("Process %s has been running since: %d ms",info.process,  info.activeSince));
}

Logcat：

TAG: Process com.android.systemui has been running since: 86526 ms

那是锁屏^

TAG: Process com.qualcomm.telephony has been running since: 68521 ms
TAG: Process com.motorola.ccc has been running since: 57456 ms
TAG: Process com.google.android.music:main has been running since: 26245 ms
TAG: Process com.android.phone has been running since: 29421 ms
TAG: Process com.motorola.ccc has been running since: 52141 ms
TAG: Process system has been running since: 28602 ms
TAG: Process com.motorola.actions has been running since: 74371 ms
TAG: Process com.motorola.ccc has been running since: 59166 ms
TAG: Process com.motorola.process.slpc has been running since: 25483 ms
TAG: Process com.android.systemui has been running since: 30142 ms
TAG: Process com.android.bluetooth has been running since: 22187 ms
TAG: Process system has been running since: 28603 ms
TAG: Process com.google.android.gms.persistent has been running since: 31621 ms
TAG: Process com.android.systemui has been running since: 27361 ms
TAG: Process com.google.android.gms.persistent has been running since: 99678 ms
TAG: Process com.motorola.contacts.preloadcontacts has been running since: 45603 ms
TAG: Process com.google.android.gms.persistent has been running since: 73457 ms
TAG: Process com.google.android.gms.persistent has been running since: 72908 ms
TAG: Process com.google.android.gms.persistent has been running since: 37251

【讨论】：

那是我不知道包名的问题
@AkashKumar 您可以从您已经提到的问题中获取包名称。
@AkashKumar 检查this