我使用Context.registerReceiver()方法，但接收器的onReceive()方法从未调用。...Override protected void onResume() { super.onResume(); IntentFilter intentFilter = new IntentFilter(); registerReceiver
接收者通过Context.registerReceiver()动态注册或在AndroidManifest.xml文件中通过标签静态注册.
从registerReceiver（BroadcastReceiver receiver,IntentFilter filter)出发 所经历的类和方法：registerReceiver(receiver...,filter)–>ContextWrapper.java$registerReceiver(receiver,filter); @Override public Intent registerReceiver...最后进入到ActivityManagerService中的registerReceiver函数中去，ActivityMangerService$registerReceiver();看看它是怎么进去的...过往的版本貌似都是ActivityManagerNative.getDefault().registerReceiver()而不是ActivityManager.getService().registerReceiver...ActivityManagerService.registerReceiver的处理 函数首先是获得调用registerReceiver函数的应用程序进程记录块： public Intent registerReceiver
接口函数如下： public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter); public void
// registerReceiver和unregisterReceiver的调用者必须一致 protected void onCreate(Bundle savedInstanceState) {...R.layout.broadcast); IntentFilter intentFilter = new IntentFilter("broad"); this.getApplication().registerReceiver...protected void onDestroy() { super.onDestroy(); this.unregisterReceiver(mB); } 这样会出错的哦， 改成： this.registerReceiver...(mB, intentFilter); this.unregisterReceiver(mB); 或 this.getApplication().registerReceiver(mB, intentFilter
在分析之前，我们先来看一下MainActivity是如何调用registerReceiver函数来注册广播接收器的： public class MainActivity extends Activity...mBase.registerReceiver(receiver, filter); } ...... } 这里的成员变量mBase是一个ContextImpl实例。...ContextImpl.registerReceiver 这个函数实现在frameworks/base/core/java/android/app/ContextImpl.java文件中...@Override public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter) { return...registerReceiver(receiver, filter, null, null); } @Override public Intent registerReceiver(BroadcastReceiver
already set"); } mBase = base; } 其中mBase是关键，因为 @Override public Intent registerReceiver...( BroadcastReceiver receiver, IntentFilter filter) { return mBase.registerReceiver(receiver...然而他们的mBase都是ContextImpl，我们进一步看看ContextImpl中对于registerReceiver和unregisterReceiver的实现。 高潮在这里到来！！！...} else { throw new RuntimeException("Not supported in system context"); } } @Override public Intent registerReceiver...context, scheduler, null, true).getIIntentReceiver(); } } try { return ActivityManagerNative.getDefault().registerReceiver
用户接口registerReceiver frameworks/base/core/java/android/content/ContextWrapper.java public Intent...registerReceiver(BroadcastReceiver receiver, IntentFilter filter) { return mBase.registerReceiver...(BroadcastReceiver receiver, IntentFilter filter) { return registerReceiver(receiver, filter..., null, null); } @Override public Intent registerReceiver(BroadcastReceiver receiver,...(BroadcastReceiver receiver, IntentFilter filter) { return registerReceiver(receiver, filter, null,
应用调用RegisterReciever，实质是调用的ContextImpl的registerReceiver,接下来跟一下这个流程： @Override public Intent registerReceiver...(BroadcastReceiver receiver, IntentFilter filter) { return registerReceiver(receiver, filter, null...@Override public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter, String...小结 registerReceiverInternal函数主要完成了2个工作： 创建了一个IIntentReceiver对象 调用AMS的registerReceiver函数 接下来看AMS的registerReceiver...函数： AMS.registerReceiver //ContextImpl.java final Intent intent = ActivityManager.getService().registerReceiver
UsbManager.ACTION_USB_DEVICE_ATTACHED); usbDeviceStateFilter.addAction(UsbManager.ACTION_USB_DEVICE_DETACHED); mContext.registerReceiver...usbDeviceStateFilter); //注册监听自定义广播 IntentFilter filter = new IntentFilter(Constant.ACTION_USB_PERMISSION); mContext.registerReceiver...setOnUDiskCallBack(UDiskCallBack.OnUDiskCallBack onUDiskCallBack) { if (mOnUDiskCallBack == null) { registerReceiver...(); mOnUDiskCallBack = onUDiskCallBack; } } /** * 注册广播接收者 */ public void registerReceiver() { //监听otg...(UDiskMountedReceiver, filter); Log.e("ReadUDisk", "registerReceiver: "); } /** * 注销广播接收者 */ public void
(ContextImpl.java:1378) at android.app.ContextImpl.registerReceiver(ContextImpl.java:1366)...(boyReceiver, filter)//注册 registerReceiver(graverReceiver, filter)//注册 registerReceiver(rubyManReceiver...(boyReceiver, boyFilter)//注册 registerReceiver(graverReceiver, graverFilter)//注册 registerReceiver...]----------------------------- private fun registerReceiver() { mReceiver = UpdateReceiver(id_pv_pre...) val filter = IntentFilter() filter.addAction(Cons.ACTION_UPDATE) registerReceiver(mReceiver
1.注册过程 @Override public Intent registerReceiver( BroadcastReceiver receiver, IntentFilter...filter) { return mBase.registerReceiver(receiver, filter); } 看到啥了？...mBase.registerReceiver是一个abstract方法， 具体实现在ContextImpl（Context的具体实现,位置E:\adt\sdk\sources\Android-23\...android\app）的registerReceiver中 @Override public Intent registerReceiver(BroadcastReceiver receiver...public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter, String
来构建的； 3、适用于不同进程之间的通信，既可用于不同APP之间的通信，也可用于系统与APP之间的通信； Broadcast的调用 广播的调用方法 sendBroadcast : 发送广播 registerReceiver...(this).registerReceiver(guestReceiver, filter); //注销接收器 LocalBroadcastManager.getInstance(this).unregisterReceiver...(guestReceiver); 进程间通讯，推荐使用Context类下的registerReceiver和unregisterReceiver方法，代码示例如下： //注册接收器，如在activity...使用，可去掉mContext，直接调用registerReceiver和unregisterReceiver mContext.registerReceiver(guestReceiver, filter...动态注册，指的是在代码中调用方法registerReceiver和unregisterReceiver；它的生命周期开始于registerReceiver，结束于unregisterReceiver，通常伴随某个
源码解析 registerReceiver 时序图 代码讲解 我们跟着上面时序图来讲解代码 先在 MainActivity registerReceiver 广播接收者 public class MainActivity...(new ReceiverB(),filterB); } ...代码省略... } 点击 registerReceiver 我们发现并不是 Activity 里面的方法，而是 Activity...的父类 ContextWrapper ContextWrapper registerReceiver public class Activity extends ContextThemeWrapper...ContextImp registerReceiver class ContextImpl extends Context { @Override public Intent registerReceiver...AMS registerReceiver /** * 这里是通过 Binder 通知调用 * @return Intent */ public Intent registerReceiver(IApplicationThread
ContextWrapper.registerReceiver 2....ContextImpl.registerReceiver LoadedApk mPackageInfo; ActivityThread mMainThread; ......@Override public Intent registerReceiver(BroadcastReceiver receiver, IntentFilter filter, String...ActivityManagerProxy.registerReceiver public Intent registerReceiver(IApplicationThread caller,...AMS.registerReceiver AMS.registerReceiver()响应REGISTER_RECEIVER_TRANSACTION。
Android应用程序是通过调用ContextWrapper类的registerReceiver方法来把广播接收器BroadcastReceiver注册到AMS中去的，而ContextWrapper类本身又借助...动态广播的注册在代码中需要调用Context类的registerReceiver方法，最终调用到ContextImpl类中的registerReceiver方法中。...receiver, IntentFilter filter) { return registerReceiver(receiver, filter, null, null);...下面我们分块来分析registerReceiver方法。...如果调用registerReceiver方法传递的receiver是null，就返回allSticky中的第一个匹配的Intent，或者返回null。
final String PERMISSION_RUST_1 = "com.rust.permission_rust_1"; // onCreate注册广播接收器 registerReceiver...(mStandardReceiver1, makeIF()); registerReceiver(mStandardReceiver2, makeIF()); registerReceiver...(mStandardReceiver3, makeIF()); registerReceiver(mStandardReceiverWithPermission, makeIF(),...null); // 带上权限 LocalBroadcastManager.getInstance(getApplicationContext()) .registerReceiver...（2）代码中，通过registerReceiver来注册。
例如 Android13 适配中，应用动态注册的广播接收器必须以显著的方式指出是否允许其他应用访问，所以，我们必须找到是哪些模块在调用 registerReceiver 方法，我们需要针对这些方法进行适配...更安全的系统组件适配：应用动态调用 registerReceiver 注册广播接收器必须以显著的方式指出是否允许其他应用访问，即其他应用是否可以向其发送广播。否则，在动态注册时系统将抛出安全异常。...例如，我们需要检查所有依赖中，有哪些模块在调用 Context.registerReceiver 方法 最终的输出结果文件如下： { "stringRef": [ { "name...}] } ], "methodRef": [ { "className": "android/content/Context", "method": "registerReceiver...android-lib2 模块中的 TestCase 类调用了 BODY_SENSORS 权限 methodRef 中分析出 android-lib2 模块中的 TestCase 类调用了 Context.registerReceiver
Intent intent = registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED)); 查询电量的时候可以通过上面这种方式返回一个...——————分割线——————————- 我也去稍微看了下registerReceiver()方法的源码，应该是在ContextImpl类中的 private Intent registerReceiverInternal...scheduler, null, true).getIIntentReceiver(); } } try { return ActivityManagerNative.getDefault().registerReceiver
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