android - 按下电源按钮时如何执行我的应用程序的某些功能？

我想在按下电源按钮两次时发送电子邮件吗？我已经尝试了很多代码，但到目前为止都没有工作。有人可以帮忙吗？

这是我的服务班

public class UpdateService extends Service {

    BroadcastReceiver mReceiver;
int counter=0;

    @Override
    public void onCreate() {
        super.onCreate();
        // register receiver that handles screen on and screen off logic
        IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
        filter.addAction(Intent.ACTION_SCREEN_OFF);
        mReceiver = new Receiver();
        registerReceiver(mReceiver, filter);
    }

    @Override
    public void onDestroy() {

        unregisterReceiver(mReceiver);
        Log.i("onDestroy Reciever", "Called");

        super.onDestroy();
    }

    @Override
    public void onStart(Intent intent, int startId) {
        boolean screenOn = intent.getBooleanExtra("screen_state", false);
        if (!screenOn) {
            counter += 1;
            Log.i("screenON *****************", "Called");
            Toast.makeText(getApplicationContext(), "Awake" + counter, Toast.LENGTH_LONG)
                    .show();
        } else {
            counter += 1;
            Log.i("screenOFF ******************", "Called");
            Toast.makeText(this, "slept" + counter, Toast.LENGTH_SHORT).show();
        }
        if (counter >= 4) {
            Log.e("counter is -->", "" + counter);
            counter = 0;
            Log.e("counter is after clearance -->", "" + counter);
            Log.e("************-***********", "Boooyah");
            Toast.makeText(this, "Booyaaaha !!!!!!!!!!!!!!!!", Toast.LENGTH_SHORT).show();


            Intent email = new Intent(Intent.ACTION_SEND);
            email.putExtra(Intent.EXTRA_EMAIL, new String[]{"[email protected]"});
            email.putExtra(Intent.EXTRA_SUBJECT, "TFS");
            email.putExtra(Intent.EXTRA_TEXT, "This is the sample Message of my email");
            email.setType("email/rfc822");
            startActivity(Intent.createChooser(email, "Send Mail Via"));
            email.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            email.addFlags(Intent.FLAG_FROM_BACKGROUND);
            startActivity(email);
        }
    }

    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }
}

这个小家伙是接收者

public class Receiver extends BroadcastReceiver {

    private boolean screenOff;

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
            screenOff = true;
        } else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
            screenOff = false;
        }
        Intent i = new Intent(context, UpdateService.class);
        i.putExtra("screen_state", screenOff);
        context.startService(i);
    }

}

表现

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.apkglobal.transarent">

    <uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>
    <uses-permission android:name="android.permission.MANAGE_OWN_CALLS"></uses-permission>
    <uses-permission android:name="android.permission.DISABLE_KEYGUARD"/>
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.SEND_SMS"></uses-permission>
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <receiver android:name=".Receiver"/>
        <service android:name=".UpdateService"/>
    </application>

</manifest>

问题是当屏幕关闭和打开时代码可以正常工作，但是我希望当连续按下电源按钮2次或3次时此代码可以工作

最佳答案

Kindly check the link

通过使用广播接收器，您可以关闭屏幕的操作，并借助它可以跟踪操作。

关于android - 按下电源按钮时如何执行我的应用程序的某些功能？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/45603754/