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采用服务实现窃听电话
1.创建一个服务类，继承Service
public class CallStatusListener extends Service {
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
TelephonyManager manager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
// 监听电话状态的变化
manager.listen(new MyListener(), PhoneStateListener.LISTEN_CALL_STATE);
}
@Override
public void onDestroy() {
System.out.println(“服务销毁了。。。。。。。。。。。。。。”);
}
private class MyListener extends PhoneStateListener {
private MediaRecorder recorder = null;
@Override
public void onCallStateChanged(int state, String incomingNumber) {
switch (state) {
// 空闲状态
case TelephonyManager.CALL_STATE_IDLE:
if (recorder != null) {
System.out.println(“停止录音。。。。。。。。。。。。。”);
recorder.stop();
recorder.reset(); // You can reuse the object by going back
// to
// setAudioSource() step
recorder.release(); // Now the object cannot be reused
recorder = null;
}
break;
// 响铃状态
case TelephonyManager.CALL_STATE_RINGING:
System.out.println(“准备录音。。。。。。。。。。。。。”);
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_WB);
recorder.setOutputFile(“/sdcard/” + System.currentTimeMillis()
+ “.3gp”);
try {
recorder.prepare();
} catch (Exception e) {
System.out.println(“异常抛出。。。。。。。。。。。。。。。。。。”);
e.printStackTrace();
}
break;
// 通话状态
case TelephonyManager.CALL_STATE_OFFHOOK:
System.out.println(“recorder = ” + recorder);
if (recorder != null) {
System.out.println(“开始录音。。。。。。。。。。。。。”);
recorder.start(); // Recording is now started
}
break;
}
}
}
}
2.MainActivity启动服务
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent intent = new Intent(this, CallStatusListener.class);
startService(intent);
}
}
3.清单文件注册并授权
<service android:name=”.CallStatusListener”></service>
<uses-permission android:name=” android.permission.READ_PHONE_STATE”/>
<uses-permission android:name=” android.permission.WRITE_EXTERNAL_STORAGE”/>
<uses-permission android:name=” android.permission.RECORD_AUDIO”/>
服务的生命周期
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void start(View view) {
Intent intent = new Intent(this, TestService.class);
startService(intent);
}
public void stop(View view) {
Intent intent = new Intent(this, TestService.class);
stopService(intent);
}
}
?
public class TestService extends Service {
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
Toast.makeText(getApplicationContext(), “onCreate()”, 0).show();
super.onCreate();
}
@Override
@Deprecated
public void onStart(Intent intent, int startId) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), “onStart()”, 0).show();
super.onStart(intent, startId);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), “onStartCommandStart()”, 0)
.show();
return super.onStartCommand(intent, flags, startId);
}
@Override
public void onDestroy() {
Toast.makeText(getApplicationContext(), “onDestroy()”, 0).show();
// TODO Auto-generated method stub
super.onDestroy();
}
}
android进程优先级&为什么使用服务
?绑定方式开启服务&调用服务的方法
1.Activity
public class MainActivity extends Activity {
private MyConn myConn;
private IService iService;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.myConn = new MyConn();
}
public void start(View view) {
Intent intent = new Intent(this, SongService.class);
startService(intent);
}
public void stop(View view) {
Intent intent = new Intent(this, SongService.class);
stopService(intent);
}
public void bind(View view) {
Intent intent = new Intent(this, SongService.class);
bindService(intent, this.myConn, Context.BIND_AUTO_CREATE);
}
public void unbind(View view) {
unbindService(this.myConn);
}
public void change(View view) {
iService.changSong(“一天一天等下去”);
}
private class MyConn implements ServiceConnection {
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
Toast.makeText(getApplicationContext(), “onServiceConnected”, 0)
.show();
iService = (IService) service;
}
@Override
public void onServiceDisconnected(ComponentName name) {
Toast.makeText(getApplicationContext(), “onServiceDisconnected”, 0)
.show();
}
}
}
2.服务类
public class SongService extends Service {
private MyIBinder myIBinder;
@Override
public IBinder onBind(Intent intent) {
Toast.makeText(getApplicationContext(), “绑定服务”, 0).show();
myIBinder = new MyIBinder();
return this.myIBinder;
}
@Override
public boolean onUnbind(Intent intent) {
Toast.makeText(getApplicationContext(), “解除绑定服务”, 0).show();
this.myIBinder = null;
return false;
}
@Override
public void onCreate() {
Toast.makeText(getApplicationContext(), “启动服务”, 0).show();
}
@Override
public void onDestroy() {
Toast.makeText(getApplicationContext(), “停止服务”, 0).show();
}
public void changSong(String name) {
Toast.makeText(getApplicationContext(), “开始播放：” + name, 0).show();
}
private class MyIBinder extends Binder implements IService{
@Override
public void changSong(String name) {
SongService.this.changSong(name);
}
}
}
3.IService接口
public interface IService {
public void changSong(String name);
}
服务生命周期(混合开启)
采用aidl绑定远程服务
一.提供服务的服务应用
1.定义一个服务类
public class AliPayService extends Service {
@Override
public IBinder onBind(Intent intent) {
Toast.makeText(getApplicationContext(), “支付宝服务已绑定”, 0).show();
return new MyIBinder();
}
@Override
public boolean onUnbind(Intent intent) {
Toast.makeText(getApplicationContext(), “支付宝服务已解绑”, 0).show();
return super.onUnbind(intent);
}
@Override
public void onCreate() {
Toast.makeText(getApplicationContext(), “支付宝服务已创建”, 0).show();
super.onCreate();
}
@Override
public void onDestroy() {
Toast.makeText(getApplicationContext(), “支付宝服务已销毁”, 0).show();
super.onDestroy();
}
private String pay() {
return “支付宝服务提供远程支付服务”;
}
private class MyIBinder extends IService.Stub {
@Override
public String callPay() throws RemoteException {
String result = pay();
return result;
}
}
}
2.在清单文件中配置
<service android:name=”.AliPayService” >
<intent-filter>
<action android:name=”com.itheima.alipay” />
</intent-filter>
</service>
二.第三方应用
public class MainActivity extends Activity {
private Intent intent;
private IService iService;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
intent = new Intent();
intent.setAction(“com.itheima.alipay”);
}
public void bind(View view) {
this.bindService(intent, new MyConn(), Context.BIND_AUTO_CREATE);
}
public void call(View view) {
try {
String result = this.iService.callPay();
Toast.makeText(getApplicationContext(), result, 0).show();
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private class MyConn implements ServiceConnection {
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
iService = IService.Stub.asInterface(service);
}
@Override
public void onServiceDisconnected(ComponentName name) {
// TODO Auto-generated method stub
}
}
}
代码注册广播接受者&利用广播调用服务的方法
1.Activity
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent intent = new Intent(this,MyService.class);
startService(intent);
}
@Override
protected void onDestroy() {
Intent intent = new Intent(this,MyService.class);
stopService(intent);
super.onDestroy();
}
public void click(View view){
Intent intent = new Intent();
intent.setAction(“com.itheima.callmethod”);
sendBroadcast(intent);
}
}
2.Service
public class MyService extends Service{
private Receiver receiver;
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
// 通过代码注册广播接收者
IntentFilter filter = new IntentFilter();
filter.addAction(“com.itheima.callmethod”);
receiver = new Receiver();
registerReceiver(receiver, filter );
super.onCreate();
}
@Override
public void onDestroy() {
unregisterReceiver(receiver);
receiver = null;
super.onDestroy();
}
private void innerMethod() {
Toast.makeText(this, “我是服务里边的内部方法”, 0).show();
}
private class Receiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if(“com.itheima.callmethod”.equals(action)){
innerMethod();
}
}
}
}
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