Question

遵循本教程：http://www.vogella.de/articles/AndroidServices/article.html#receiver我创建了自己的项目。清单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="alex.broadcast.sample"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="13" />
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >

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

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

代码：

public class MyPhoneReceiver extends BroadcastReceiver {
final String logTag = "BroadcastReceiverSample";

@Override
public void onReceive(Context context, Intent intent) {
    Bundle extras = intent.getExtras();
    if (extras != null) {
        String state = extras.getString(TelephonyManager.EXTRA_STATE);

        Log.i(logTag, "Call state: " + state);

        if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
            String phoneNumber = extras.getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
            Log.i(logTag, "Phone number: " + phoneNumber);
        }
    }
}
}

在Android模拟器上运行此示例，我看到它已成功安装。但是，永远不会调用onReceive函数。我使用以下方式拨打来电：

telnet localhost 5554
gsm call 12345678

模拟器显示来电，但未调用onReceive。

Answer 1

不应该是：

<receiver android:name=".MyPhoneReceiver">
                        ^ note the dot

此外，权限的位置是错误的，应该是<manifest>而不是<Application>的孩子。

Answer 2

在Android 6上不要忘记允许许可：

onCreate(){
if (
            ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED
                &&
            ActivityCompat.checkSelfPermission(this, Manifest.permission.PROCESS_OUTGOING_CALLS) != PackageManager.PERMISSION_GRANTED
            )
        {
            requestPermission();
        }else {
            IntentFilter filter = new IntentFilter();
    filter.addAction("android.intent.action.PHONE_STATE");
    filter.addAction("android.intent.action.NEW_OUTGOING_CALL");
    registerReceiver(receiver, filter);
        }
}
 private void requestPermission() {
    final List<String> permissionsList = new ArrayList<String>();
    permissionsList.add(Manifest.permission.READ_PHONE_STATE);
    permissionsList.add(Manifest.permission.PROCESS_OUTGOING_CALLS);
    ActivityCompat.requestPermissions(this,permissionsList.toArray(new String[permissionsList.size()]),
            REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS);
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    switch (requestCode){
        case REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS:{
            IntentFilter filter = new IntentFilter();
    filter.addAction("android.intent.action.PHONE_STATE");
    filter.addAction("android.intent.action.NEW_OUTGOING_CALL");
    registerReceiver(receiver, filter);
        }
    }
}

不为PHONE_STATE调用BroadcastReceiver.onReceive

2 个答案: