Android动态发送广播简单例子

声明广播

private BroadcastReceiver broadcastReceiver;

1.发送广播
Intent intent = new Intent("com.example.MY_ACTION");
intent.putExtra("message", "6");
getContext().sendBroadcast(intent);

2.注册接收广播

// 初始化 BroadcastReceiver
broadcastReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        // 处理接收到的广播消息
        String message = intent.getStringExtra("message");
        if (message.equals("6")) {
            //处理相应的逻辑
            // 取消注册广播接收器
            context.unregisterReceiver(broadcastReceiver);
        }
    }
};
// 注册广播接收器
IntentFilter intentFilter = new IntentFilter("com.example.MY_ACTION");
mContext.registerReceiver(broadcastReceiver, intentFilter);