Android knowledge 040 - view broadcast of the sender information

1, see the broadcast of intent issued

adb shell dumpsys activity broadcasts and then view history

 

2, modified Android AOSP code, BroadcastQueue.java

final void processNextBroadcastLocked(boolean fromMsg, boolean skipOomAdj) {


    //把打印加在 BroadcastRecord r; 刚取出来的时候.大约在845 行。见下：
    
    // First, deliver any non-serialized broadcasts right away.
    while (mParallelBroadcasts.size() > 0) {
        r = mParalledlBroadcasts.remove(0);

//将打印放在这，关键匹配的action，直接printStackTrace.就能看清触发机制
//r 的信息很多，例如    r.callerPackage
// r.intent.getAction() ,再加上，自己关心的intent如果匹配，直接backtrace。
// Exception e = new Exception();
// e.printStackTrace();


}