電話監聽的小案例實現(Android Studio)
阿新 • • 發佈:2019-02-07
最近在做語音識別相關的業務,裡面有語音合成(TTS)本地檔案的實現,我想自己錄一個音訊檔案,不然監聽一下通話的資料,看一看合成的效果怎麼樣了,於是就做了這樣一個小demo,實現監聽並本地儲存通話語音記錄;由於使用的模擬器,所以很多地方有限制,比如不能麥的選擇只能是MIC不能是CALL(一個單向,一個雙向);不過後面都可以優化。
1,通常這個都是做成一個服務,這裡我為了測試方便,就做成了通過點選按鈕(開啟服務)來實現繫結電話監聽服務(RecordService),具體程式碼如下:
(1)activity_main.xml檔案如下:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context="pay.com.huaya.MainActivity"> <Button android:id="@+id/bu_1" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="開啟監聽" android:onClick="click1" /> </LinearLayout>
(2)MainActivity程式碼如下:
package pay.com.huaya; import android.content.ComponentName; import android.content.Intent; import android.content.ServiceConnection; import android.os.IBinder; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MainActivity extends AppCompatActivity { private Button button; private RecordService recordService; private MyServiceConnection myServiceConnection; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = findViewById(R.id.bu_1); } public void click1(View view) { String tempContent = button.getText().toString(); System.out.println(tempContent); if (tempContent.equals("開啟監聽")) { button.setText("關閉監聽"); recordService = new RecordService(); myServiceConnection = new MyServiceConnection(); Intent intent = new Intent(this, RecordService.class); //繫結服務 bindService(intent, myServiceConnection, BIND_AUTO_CREATE); } else { button.setText("開啟監聽"); //解綁服務 unbindService(myServiceConnection); } } private class MyServiceConnection implements ServiceConnection { @Override public void onServiceConnected(ComponentName name, IBinder service) { } @Override public void onServiceDisconnected(ComponentName name) { } } }
(3)RecordService程式碼如下:
package pay.com.huaya; import android.app.Service; import android.content.Intent; import android.media.MediaRecorder; import android.os.Binder; import android.os.IBinder; import android.telephony.PhoneStateListener; import android.telephony.TelephonyManager; import java.io.IOException; import java.util.Calendar; import java.util.Date; /** * @author why * */ public class RecordService extends Service { MyPhoneStateListener myPhoneStateListener; private MediaRecorder mediaRecorder; @Override public IBinder onBind(Intent intent) { System.out.println("服務繫結成功"); return null; } //重寫該方法 @Override public void onCreate() { System.out.println("服務建立成功"); //獲取電話管理者例項 TelephonyManager telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE); //註冊自定義電話監聽器 myPhoneStateListener = new MyPhoneStateListener(); telephonyManager.listen(myPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); super.onCreate(); } //自定義電話監聽器 private class MyPhoneStateListener extends PhoneStateListener { //重寫裡面的onCallStateChanged()方法 @Override public void onCallStateChanged(int state, String incomingNumber) { switch (state) { //空閒狀態 case TelephonyManager.CALL_STATE_IDLE: if(mediaRecorder!=null){ mediaRecorder.stop(); mediaRecorder.reset(); mediaRecorder.release(); } break; //接聽狀態 case TelephonyManager.CALL_STATE_OFFHOOK: System.out.println("開始錄音"); mediaRecorder.start(); break; //響鈴狀態 case TelephonyManager.CALL_STATE_RINGING: System.out.println("有人來電"); recodeFun(); break; } super.onCallStateChanged(state, incomingNumber); } } private void recodeFun(){ //初始化錄音機 mediaRecorder=new MediaRecorder(); //設定音訊來源,mic單向,call雙向 mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); //設定輸出格式 mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); //設定編碼方式 mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); //設定輸出檔案路徑,使用當前時間作為檔名的一部分 Calendar calendar=Calendar.getInstance(); int hour=calendar.get(Calendar.HOUR); String subPath=""+hour+"/"+calendar.get(Calendar.SECOND); System.out.println("路徑為:/mnt/sdcard/"+subPath); mediaRecorder.setOutputFile("/mnt/sdcard/"+subPath+".3gp"); try { //準備與開始錄音 mediaRecorder.prepare(); } catch (IOException e) { e.printStackTrace(); } } }
(4)AndroidManifest檔案程式碼如下(主要是部分許可權和一個服務):
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="pay.com.huaya">
<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">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name=".RecordService"
android:enabled="true"
android:exported="true"></service>
</application>
<!--額外的許可權-->
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<uses-permission android:name="android.permission.RECORD_AUDIO"></uses-permission>
</manifest>
2,測試結果如下
(1)開啟應用,如下圖:
(2)點選“開啟監聽”:
(3)模擬打電話,實現監聽:
(4)點選接聽,說話,結束通話,觀察輸出的檔案路徑與本地儲存的音訊檔案(可以匯出播放):