[英]Broadcast receiver in android not working
我创建了一个使用BroadcastReceiver
跟踪来电和去电的应用程序。 我的问题是BrocastReceiver
无法正常工作,无法跟踪传入和传出的呼叫。 即使关闭我的应用程序,也应跟踪这些呼叫。
//MainActivity.java
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
//Calls.java
public abstract class Calls extends BroadcastReceiver {
private static int lastState = TelephonyManager.CALL_STATE_IDLE;
private static Date callStartTime;
private static boolean isIncoming;
private static String savedNumber;
@Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals("android.intent.action.NEW_OUTGOING_CALL")) {
savedNumber = intent.getExtras().getString("android.intent.extra.PHONE_NUMBER");
}
else {
String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
int state = 0;
if(stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)) {
state = TelephonyManager.CALL_STATE_IDLE;
}
else if(stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
state = TelephonyManager.CALL_STATE_OFFHOOK;
}
else if(stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
state = TelephonyManager.CALL_STATE_RINGING;
}
onCallStateChanged(context, state, number);
}
}
protected abstract void onIncomingCallReceived(Context ctx, String number, Date start);
protected abstract void onIncomingCallAnswered(Context ctx, String number, Date start);
protected abstract void onIncomingCallEnded(Context ctx, String number, Date start, Date end);
protected abstract void onOutgoingCallStarted(Context ctx, String number, Date start);
protected abstract void onOutgoingCallEnded(Context ctx, String number, Date start, Date end);
protected abstract void onMissedCall(Context ctx, String number, Date start);
public void onCallStateChanged(Context context, int state, String number) {
if(lastState == state) {
//No change, debounce extras
return;
}
switch (state) {
case TelephonyManager.CALL_STATE_RINGING:
isIncoming = true;
callStartTime = new Date();
savedNumber = number;
onIncomingCallReceived(context, number, callStartTime);
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
//Transition of ringing->offhook are pickups of incoming calls. Nothing done on them
if(lastState != TelephonyManager.CALL_STATE_RINGING) {
isIncoming = false;
callStartTime = new Date();
onOutgoingCallStarted(context, savedNumber, callStartTime);
}
else {
isIncoming = true;
callStartTime = new Date();
onIncomingCallAnswered(context, savedNumber, callStartTime);
}
break;
case TelephonyManager.CALL_STATE_IDLE:
//Went to idle- this is the end of a call. What type depends on previous state(s)
if(lastState == TelephonyManager.CALL_STATE_RINGING) {
//Ring but no pickup- a miss
onMissedCall(context, savedNumber, callStartTime);
}
else if(isIncoming) {
onIncomingCallEnded(context, savedNumber, callStartTime, new Date());
}
else {
onOutgoingCallEnded(context, savedNumber, callStartTime, new Date());
}
break;
}
lastState = state;
}
}
//CallReceiver.java
public class CallReceiver extends Calls {
@Override
protected void onIncomingCallReceived(Context ctx, String number, Date start) {
Toast.makeText(ctx, ""+number, Toast.LENGTH_LONG).show();
}
@Override
protected void onIncomingCallAnswered(Context ctx, String number, Date start) {
Toast.makeText(ctx, ""+number, Toast.LENGTH_LONG).show();
}
@Override
protected void onIncomingCallEnded(Context ctx, String number, Date start, Date end) {
Toast.makeText(ctx, ""+number, Toast.LENGTH_LONG).show();
}
@Override
protected void onOutgoingCallStarted(Context ctx, String number, Date start) {
Toast.makeText(ctx, ""+number, Toast.LENGTH_LONG).show();
}
@Override
protected void onOutgoingCallEnded(Context ctx, String number, Date start, Date end) {
Toast.makeText(ctx, ""+number, Toast.LENGTH_LONG).show();
}
@Override
protected void onMissedCall(Context ctx, String number, Date start) {
Toast.makeText(ctx, ""+number, Toast.LENGTH_LONG).show();
}
}
//AndroidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="net.example.hawkeye">
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
<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"
android:fullBackupContent="true">
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".CallReceiver" android:enabled="true">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
<!--<action android:name="android.intent.action.NEW_OUTGOING_CALL" />-->
</intent-filter>
</receiver>
</application>
</manifest>
哪里做错了。 有什么解决办法。 我不知道如何解决这个问题。 是Android的新手。 比你。
在Activity的onCreate上注册Receiver,然后在Activity的onDestroy中取消注册。但是您的要求是,即使您的活动已关闭,接收器也应该工作,因此请提供服务并执行此操作。
请参阅此代码以获取更多详细信息
CallStateService
public class CallStateService extends Service {
private CallHelper callHelper;
public CallStateService() {
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d("Ispy","Callservice Start");
callHelper = new CallHelper(this);
int res = super.onStartCommand(intent, flags, startId);
callHelper.start();
return res;
}
@Override
public void onDestroy() {
super.onDestroy();
callHelper.stop();
}
@Override
public IBinder onBind(Intent intent) {
// not supporting binding
return null;
}
}
CallStateListener
/**
* Listener to detect incoming calls.
*/
class CallStateListener extends PhoneStateListener {
@Override
public void onCallStateChanged(int state, String incomingNumber) {
switch (state) {
case TelephonyManager.CALL_STATE_RINGING:
Log.d("Incoming number",incomingNumber);
break;
}
}
}
赫普勒
public class CallHelper {
private Context ctx;
private TelephonyManager tm;
private CallStateListener callStateListener;
private OutgoingReceiver outgoingReceiver;
public CallHelper(Context ctx) {
this.ctx = ctx;
callStateListener = new CallStateListener();
outgoingReceiver = new OutgoingReceiver();
}
/**
* Start calls detection.
*/
public void start() {
tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
tm.listen(callStateListener, PhoneStateListener.LISTEN_CALL_STATE);
IntentFilter intentFilter = new IntentFilter(Intent.ACTION_NEW_OUTGOING_CALL);
ctx.registerReceiver(outgoingReceiver, intentFilter);
}
/**
* Stop calls detection.
*/
public void stop() {
tm.listen(callStateListener, PhoneStateListener.LISTEN_NONE);
ctx.unregisterReceiver(outgoingReceiver);
}
}
接收者
/**
* Broadcast receiver to detect the outgoing calls. Use yours Instead but make sure to register in callhelper
*/
public class OutgoingReceiver extends BroadcastReceiver {
public OutgoingReceiver() {
}
@Override
public void onReceive(Context context, Intent intent) {
String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
Log.d("Outgoing number",number);
}
}
然后从活动中启动CallStateService,然后一切都会正常进行。 事先授予权限。
使用PhoneStateListner进行活动或服务某些系统接收器(如电池电量等)必须注册活动或服务
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.