小编Div*_*asu的帖子

我无法在 android 9 设备中使用 TelephonyManager.EXTRA_INCOMING_NUMBER 获取来电者电话号码。它始终为空。我已在清单文件中添加了所需的权限。

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

////

<receiver android:name="packagename" android:enabled="true" >
        <intent-filter>
            <action android:name="android.intent.action.PHONE_STATE" />

        </intent-filter>
</receiver>

////

 public void onReceive(final Context context, Intent intent) {

    Log.d(" onReceive: ", "flag1");

    String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);

    if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)
            || state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {

        Log.d("Ringing", "Phone is ringing");

        Intent i = new Intent(context, MainActivity.class);
        i.putExtras(intent);
        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | 
Intent.FLAG_ACTIVITY_CLEAR_TOP);

        context.startActivity(i);
    }
}

在上面的 onReceive() 方法中，我访问了手机的状态，运行良好..

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    try {

        if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.SYSTEM_ALERT_WINDOW) …