java - 手机响铃时如何查看

Question

我想自定义电话铃声 View 并显示和显示 TextView 。现在如何访问该 View 并自定义它？或者如果我无法访问它我可以做什么来在该 View 中显示 TextView ？

Answer 1

您需要创建一个应用程序，并在 Activity 中扩展 BroadcastListener 服务，并为该 Activity 提供您想要的布局1)在AndroidManifest.xml中声明广播接收器

     <receiver android:name=".MainActivity">   
            <intent-filter>
               <action android:name="android.intent.action.PHONE_STATE" />
            </intent-filter>
    </receiver>

还有这个权限

    <uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>

您的主 MainActivity.java 应该类似于此文件

    public class MainActivity extends BroadcastReceiver {

public void onReceive(Context context, Intent intent) {

try {
           // TELEPHONY MANAGER class object to register one listner
            TelephonyManager tmgr = (TelephonyManager) context
                    .getSystemService(Context.TELEPHONY_SERVICE);

            //Create Listner
            MyPhoneStateListener PhoneListener = new MyPhoneStateListener();

            // Register listener for LISTEN_CALL_STATE
            tmgr.listen(PhoneListener, PhoneStateListener.LISTEN_CALL_STATE);

    } catch (Exception e) {
        Log.e("Phone Receive Error", " " + e);
    }

}

private class MyPhoneStateListener extends PhoneStateListener {
    public void onCallStateChanged(int state, String incomingNumber) {

        Log.d("MyPhoneListener",state+"   incoming no:"+incomingNumber);

        if (state == 1) {

            String msg = "New Phone Call Event. Incomming Number : "+incomingNumber;
            int duration = Toast.LENGTH_LONG;
            Toast toast = Toast.makeText(pcontext, msg, duration);
            toast.show();

        }
    }
}

}

此代码将在接到电话时显示一个Toast，您可以根据需要更改布局文件和显示。