Question

我正在尝试通过Hijack与电话建立接口，所以我正在尝试记录从劫持发送的数据（声音）。当我使用Eclipse尝试此代码时，它告诉我该程序已经不幸停止了，我以为我使用的外设模拟器无法在PC上访问，因此我将其移至我的智能手机并显示同样的问题。

以下是代码：

public class MainActivity extends Activity {

    private MediaRecorder myAudioRecorder;
    private String outputFile = null;
    private Button start,stop,play;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        start = (Button)findViewById(R.id.button1);
        stop = (Button)findViewById(R.id.button2);
        play = (Button)findViewById(R.id.button3);

        stop.setEnabled(false);
        play.setEnabled(false);
        outputFile = Environment.getExternalStorageDirectory()
                .getAbsolutePath() + "/myrecording.3gp";

        myAudioRecorder = new MediaRecorder();
        myAudioRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        myAudioRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
        myAudioRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
        myAudioRecorder.setOutputFile(outputFile);
    }

    public void start(View view){
        try {
            myAudioRecorder.prepare();
            myAudioRecorder.start();
        } catch (IllegalStateException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        start.setEnabled(false);
        stop.setEnabled(true);
        Toast.makeText(getApplicationContext(), "Recording started", 
                Toast.LENGTH_LONG).show();
    }

    public void stop(View view){
        myAudioRecorder.stop();
        myAudioRecorder.release();
        myAudioRecorder  = null;
        stop.setEnabled(false);
        play.setEnabled(true);
        Toast.makeText(getApplicationContext(), "Audio recorded successfully",
        Toast.LENGTH_LONG).show();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    public void play(View view) throws IllegalArgumentException,   
            SecurityException, IllegalStateException, IOException{
        MediaPlayer m = new MediaPlayer();
        m.setDataSource(outputFile);
        m.prepare();
        m.start();
        Toast.makeText(getApplicationContext(), "Playing audio", 
                Toast.LENGTH_LONG).show();
    }
}

这是清单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.audiocapture"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="10"
        android:targetSdkVersion="21" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>

这是main_activity.xml：

<?xml version="1.0" encoding ="utf-8"?>
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity"
    tools:ignore="RtlHardcoded" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="32dp"
        android:text="@string/Recording"
        android:textAppearance="?android:attr/textAppearanceMedium"
        tools:ignore="RtlHardcoded" />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_below="@+id/textView1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="37dp"
        android:scaleType="fitXY"
        android:src="@android:drawable/presence_audio_online" 
        android:contentDescription="@string/imageViewDescription" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/imageView1"
        android:layout_marginTop="67dp"
        android:layout_toLeftOf="@+id/imageView1"
        android:onClick="start"
        android:text="@string/start" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/button1"
        android:layout_alignBottom="@+id/button1"
        android:layout_alignRight="@+id/textView1"
        android:layout_marginRight="40dp"
        android:onClick="stop"
        android:text="@string/stop" />

    <Button
        android:id="@+id/button3"
        style="?android:attr/buttonStyleSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button2"
        android:layout_centerHorizontal="true"
        android:onClick="play"
        android:text="@string/play" />

</RelativeLayout>

Answer 1

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.audiocapture"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="10"
        android:targetSdkVersion="21" />


   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>     
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
   <uses-permission android:name="android.permission-group.HARDWARE_CONTROLS"/>
   <uses-permission android:name="android.permission-group.MICROPHONE"/>

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>

不幸的是，申请已停止工作

1 个答案: