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我正在製作和記錄通話的應用程序。這是我的代碼來記錄一個電話並將文件保存在SD卡下的歌曲文件夾下。但問題是這段代碼工作正常，但後來無法正常工作。我找不到有什麼問題。你能幫我解決嗎？在android中撥打電話的代碼
我撒施接收器：
public class BrCallReceive extends BroadcastReceiver {
@Override
public void onReceive(Context c, Intent i) {
Bundle extras = i.getExtras();
Intent x = new Intent (c, EavesDropperActivity.class);
x.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (extras != null) {
String state = extras.getString(TelephonyManager.EXTRA_STATE);
Log.w("DEBUG", state);
if (state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
Log.w("DEBUG", "MATCHES");
Toast.makeText(c, "Launching record APP !", Toast.LENGTH_LONG).show();
c.startActivity(x);
}
}
}
}
我的錄音活動：
public class EavesDropperActivity extends Activity {
/** Called when the activity is first created. */
MediaRecorder m_recorder = new MediaRecorder();
TelephonyManager t_manager ;
PhoneStateListener p_listener ;
String record_state;
Uri file;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
Toast.makeText(getBaseContext(),
"Executing Activity",
Toast.LENGTH_LONG).show();
t_manager = (TelephonyManager) getSystemService (Context.TELEPHONY_SERVICE);
p_listener = new PhoneStateListener() {
@Override
public void onCallStateChanged (int state, String incomingNumber) {
switch (state) {
case (TelephonyManager.CALL_STATE_IDLE) :
stop_recorder();
//t_manager.listen(p_listener, PhoneStateListener.LISTEN_NONE);
//finish();
break;
case (TelephonyManager.CALL_STATE_OFFHOOK) :
start_recorder();
break;
case (TelephonyManager.CALL_STATE_RINGING) :
break;
}
}
};
t_manager.listen(p_listener, PhoneStateListener.LISTEN_CALL_STATE);
return;
}
public void start_recorder() {
m_recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
m_recorder.setOutputFormat(OutputFormat.THREE_GPP);
m_recorder.setOutputFile(Environment.getExternalStorageDirectory()+"/songs/audionew.3gpp");
m_recorder.setAudioEncoder(AudioEncoder.AMR_NB);
try {
m_recorder.prepare();
m_recorder.start();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void stop_recorder() {
m_recorder.stop();
m_recorder.release();
Uri file = Uri.fromFile(
new File(Environment.getExternalStorageDirectory(),"/songs/audionew.3gpp"));
Toast.makeText(getBaseContext(),
"record stored at " + file.toString(),
Toast.LENGTH_LONG).show();
t_manager.listen(p_listener, PhoneStateListener.LISTEN_NONE);
finish();
}
}
我的清單：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.testapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.testapp.EavesDropperActivity"
android:label="@string/app_name" >
</activity>
<receiver android:name="BrCallReceive" >
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" >
</action>
</intent-filter>
</receiver>
</application>
</manifest>
任何logcat的？當你說它停止工作，以前它曾經工作時，你究竟意味着什麼？ –
事情是，當我在我的設備上安裝apk並運行它時，它不起作用。早些時候，相同的代碼能夠記錄電話。但現在安裝後沒有任何事情發生。該apk只是安裝，沒有任何事情發生。 – user3080161
我的設備是android 4.1.2 – user3080161