上周做一个小的功能,修改statusbar,在launcher界面和其它应用界面显示不同的背景色和icon,最初想的就是接受系统activity启动的广播,进行判断,研究了一段时间,发现接受不到广播,最后在网上搜索资料,发现monkey代码中有一段代码可以接受activity启动和resume事件。最终满足要求。代码如下
1.设置观察者
mAm = ActivityManagerNative.getDefault(); try { mAm.setActivityController(new ActivityController()); } catch (RemoteException e) { System.err.println("** Failed talking with activity manager!"); }
2.观察者类
private class ActivityController extends IActivityController.Stub {
//start public boolean activityStarting(Intent intent, String pkg) { currentPkg = pkg; mHandler.sendEmptyMessage(MSG_UPDATE_BACKGROUND); //currentIntent = intent; return true; }
//resume
public boolean activityResuming(String pkg) { currentPkg = pkg; mHandler.sendEmptyMessage(MSG_UPDATE_BACKGROUND); return true; } public int appEarlyNotResponding(String processName, int pid, String annotation){return 0; }
public boolean appCrashed(String processName, int pid, String shortMsg, String longMsg, long timeMillis, String stackTrace) { /* System.err.println("// CRASH: " + processName + " (pid " + pid + ")"); System.err.println("// Short Msg: " + shortMsg); System.err.println("// Long Msg: " + longMsg); System.err.println("// Build Label: " + Build.FINGERPRINT); System.err.println("// Build Changelist: " + Build.VERSION.INCREMENTAL); System.err.println("// Build Time: " + Build.TIME); System.err.println("// " + stackTrace.replace("\n", "\n// "));
if (!mIgnoreCrashes) { synchronized (Monkey.this) { mAbort = true; }
return !mKillProcessAfterError; }*/ return false; }
public int appNotResponding(String processName, int pid, String processStats) { // System.err.println("// NOT RESPONDING: " + processName + " (pid " + pid + ")"); //System.err.println(processStats); return 0; }
在一个service中加入以上代码,当activity活动时就会调用上述的方法packagename为activity的所在包名
由于ActivityManagerNative和IActivityController都属于内部类,,所以该方法需要在源码环境下才可以使用
附一份IActivityController.aidl源码函数说明
package android.app;
import android.content.Intent;
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