Question

我想点击按钮

开始和停止广播

    start.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (isStopped) {
                stopAnim(start);
                isStopped = false;
                checkStatus();
                IntentFilter intentFilter = new IntentFilter("android.intent.action.ACTION_POWER_DISCONNECTED");
                MainActivity.this.registerReceiver(acbroadcast , intentFilter);

                Intent i = new Intent("android.intent.action.ACTION_POWER_DISCONNECTED");
                sendBroadcast(i);
            }
        }
    });
    stop.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (!isStopped) {
                stopAnim(stop);
                isStopped = true;
                checkStatus();
                MainActivity.this.unregisterReceiver(acbroadcast);
            }
        }
    });

但是当我运行应用程序时会引发异常

06-30 20:30:32.541 27577-27577/com.android.boltage.unplugbroadcast E/AndroidRuntime:
 FATAL EXCEPTION: main
 Process: com.android.boltage.unplugbroadcast, PID: 27577
 java.lang.SecurityException: Permission Denial: not allowed to send broadcast android.intent.action.ACTION_POWER_DISCONNECTED from pid=27577, uid=10149
     at android.os.Parcel.readException(Parcel.java:1546)
     at android.os.Parcel.readException(Parcel.java:1499)
     at android.app.ActivityManagerProxy.broadcastIntent(ActivityManagerNative.java:3005)
     at android.app.ContextImpl.sendBroadcast(ContextImpl.java:1515)
     at android.content.ContextWrapper.sendBroadcast(ContextWrapper.java:384)
     at com.android.boltage.unplugbroadcast.MainActivity$2.onClick(MainActivity.java:69)
     at android.view.View.performClick(View.java:5076)
     at android.view.View$PerformClick.run(View.java:20279)
     at android.os.Handler.handleCallback(Handler.java:739)
     at android.os.Handler.dispatchMessage(Handler.java:95)
     at android.os.Looper.loop(Looper.java:135)
     at android.app.ActivityThread.main(ActivityThread.java:5930)
     at java.lang.reflect.Method.invoke(Native Method)
     at java.lang.reflect.Method.invoke(Method.java:372)
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1405)
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1200)

Answer 1

我得到了一个解决方案我们可以简单地调用服务类，它将进一步注册广播接收器，点击停止按钮将破坏服务并取消注册广播接收器这种方法为我的问题找到了解决方案

如何在Android中点击按钮启动和停止广播接收器

1 个答案: