android - 如何在android中记录电话？

Question

我想制作一个应用程序来记录来电和去电，并在用户接听或调用任何电话时自动运行。

Answer 1

好的，首先您需要使用设备策略管理器，并且需要将您的设备设为管理员设备。之后，您必须创建一个广播接收器和一项服务。我在这里发布代码并且工作正常。

主 Activity :

public class MainActivity extends Activity {
    private static final int REQUEST_CODE = 0;
    private DevicePolicyManager mDPM;
    private ComponentName mAdminName;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        try {
            // Initiate DevicePolicyManager.
            mDPM = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
            mAdminName = new ComponentName(this, DeviceAdminDemo.class);

            if (!mDPM.isAdminActive(mAdminName)) {
                Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
                intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, mAdminName);
                intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "Click on Activate button to secure your application.");
                startActivityForResult(intent, REQUEST_CODE);
            } else {
                // mDPM.lockNow();
                // Intent intent = new Intent(MainActivity.this,
                // TrackDeviceService.class);
                // startService(intent);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } 
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if (REQUEST_CODE == requestCode) {
                Intent intent = new Intent(MainActivity.this, TService.class);
                startService(intent);
        }
    }

}

//DeviceAdminDemo类

public class DeviceAdminDemo extends DeviceAdminReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        super.onReceive(context, intent);
    }

    public void onEnabled(Context context, Intent intent) {
    };

    public void onDisabled(Context context, Intent intent) {
    };
}

//TService类

public class TService extends Service {
    MediaRecorder recorder;
    File audiofile;
    String name, phonenumber;
    String audio_format;
    public String Audio_Type;
    int audioSource;
    Context context;
    private Handler handler;
    Timer timer;
    Boolean offHook = false, ringing = false;
    Toast toast;
    Boolean isOffHook = false;
    private boolean recordstarted = false;

    private static final String ACTION_IN = "android.intent.action.PHONE_STATE";
    private static final String ACTION_OUT = "android.intent.action.NEW_OUTGOING_CALL";
    private CallBr br_call;




    @Override
    public IBinder onBind(Intent arg0) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void onDestroy() {
        Log.d("service", "destroy");

        super.onDestroy();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        // final String terminate =(String)
        // intent.getExtras().get("terminate");//
        // intent.getStringExtra("terminate");
        // Log.d("TAG", "service started");
        //
        // TelephonyManager telephony = (TelephonyManager)
        // getSystemService(Context.TELEPHONY_SERVICE); // TelephonyManager
        // // object
        // CustomPhoneStateListener customPhoneListener = new
        // CustomPhoneStateListener();
        // telephony.listen(customPhoneListener,
        // PhoneStateListener.LISTEN_CALL_STATE);
        // context = getApplicationContext();

        final IntentFilter filter = new IntentFilter();
        filter.addAction(ACTION_OUT);
        filter.addAction(ACTION_IN);
        this.br_call = new CallBr();
        this.registerReceiver(this.br_call, filter);

        // if(terminate != null) {
        // stopSelf();
        // }
        return START_NOT_STICKY;
    }

    public class CallBr extends BroadcastReceiver {
        Bundle bundle;
        String state;
        String inCall, outCall;
        public boolean wasRinging = false;

        @Override
        public void onReceive(Context context, Intent intent) {
            if (intent.getAction().equals(ACTION_IN)) {
                if ((bundle = intent.getExtras()) != null) {
                    state = bundle.getString(TelephonyManager.EXTRA_STATE);
                    if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
                        inCall = bundle.getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
                        wasRinging = true;
                        Toast.makeText(context, "IN : " + inCall, Toast.LENGTH_LONG).show();
                    } else if (state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
                        if (wasRinging == true) {

                            Toast.makeText(context, "ANSWERED", Toast.LENGTH_LONG).show();

                            String out = new SimpleDateFormat("dd-MM-yyyy hh-mm-ss").format(new Date());
                            File sampleDir = new File(Environment.getExternalStorageDirectory(), "/TestRecordingDasa1");
                            if (!sampleDir.exists()) {
                                sampleDir.mkdirs();
                            }
                            String file_name = "Record";
                            try {
                                audiofile = File.createTempFile(file_name, ".amr", sampleDir);
                            } catch (IOException e) {
                                e.printStackTrace();
                            }
                            String path = Environment.getExternalStorageDirectory().getAbsolutePath();

                            recorder = new MediaRecorder();
//                          recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL);

                            recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_COMMUNICATION);
                            recorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);
                            recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
                            recorder.setOutputFile(audiofile.getAbsolutePath());
                            try {
                                recorder.prepare();
                            } catch (IllegalStateException e) {
                                e.printStackTrace();
                            } catch (IOException e) { 
                                e.printStackTrace();
                            }
                            recorder.start();
                            recordstarted = true;
                        }
                    } else if (state.equals(TelephonyManager.EXTRA_STATE_IDLE)) {
                        wasRinging = false;
                        Toast.makeText(context, "REJECT || DISCO", Toast.LENGTH_LONG).show();
                        if (recordstarted) {
                            recorder.stop();
                            recordstarted = false;
                        }
                    }
                }
            } else if (intent.getAction().equals(ACTION_OUT)) {
                if ((bundle = intent.getExtras()) != null) {
                    outCall = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
                    Toast.makeText(context, "OUT : " + outCall, Toast.LENGTH_LONG).show();
                }
            }
        }
    }

}

// list 文件中的权限

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.STORAGE" />

//my_admin.xml

<device-admin xmlns:android="http://schemas.android.com/apk/res/android" >
    <uses-policies>
        <force-lock />
    </uses-policies>
</device-admin>

//在manifest中声明如下内容:

将 DeviceAdminDemo 类声明为 list :

 <receiver
            android:name="com.example.voicerecorder1.DeviceAdminDemo"
            android:description="@string/device_description"
            android:label="@string/device_admin_label"
            android:permission="android.permission.BIND_DEVICE_ADMIN" >
            <meta-data
                android:name="android.app.device_admin"
                android:resource="@xml/my_admin" />


            <intent-filter>
                <action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
                <action android:name="android.app.action.DEVICE_ADMIN_DISABLED" />
                <action android:name="android.app.action.DEVICE_ADMIN_DISABLE_REQUESTED" />
            </intent-filter>
        </receiver>

<service android:name=".TService" >
        </service>