Brauche Hilfe beim Programmieren - Video mit MediaRecorder aufnehmen

1<uses-permission android:name="android.permission.CAMERA" />
2 <uses-permission
3 android:name="android.permission.FLASHLIGHT"
4 android:permissionGroup="android.permission-group.HARDWARE_CONTROLS"
5 android:protectionLevel="normal" />
6 <uses-permission android:name="android.hardware.camera.autofocus" />
7 <uses-permission android:name="android.hardware.camera" />
8 <uses-permission android:name="android.hardware.camera.flash" />
9 <uses-permission android:name="android.hardware.Camera.setParameters" />
10 <uses-permission android:name="android.permission.WRITE_SETTINGS" />
11 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
12 <uses-permission android:name="android.permission.RECORD_AUDIO"/>
13 <uses-permission android:name="android.permission.RECORD_VIDEO"/>

1surface = (SurfaceView) findViewById(R.id.surfaceView1);
2 SurfaceHolder holder = surface.getHolder();
3 holder.addCallback(this);
4 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
5 holder.setSizeFromLayout();
6 }
7 private void initMediaRecorder() {
8 isRecording = false;
9 recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
10 recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
11 CamcorderProfile profile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
12 recorder.setProfile(profile);
13 File dir = new File(Environment.getExternalStorageDirectory(),
14 this.getClass().getPackage().getName());
15 dir.mkdirs();
16 videofile = new File(dir.getAbsolutePath(), new SimpleDateFormat(
17 "'IMG_'yyyyMMddHHmmss'.mp4'").format(new Date()));
18 recorder.setOutputFile(videofile.getAbsolutePath());
19 }
20 public void recStart(final View View) {
21 if (isRecording) {
22 recorder.stop();
23 initMediaRecorder();
24 prepareMediaRecorder();
25 } else {
26 recorder.start();
27 isRecording = true;
28 }
29 }
30 private void prepareMediaRecorder() {
31 recorder.setPreviewDisplay(holder.getSurface());
32 try {
33 recorder.prepare();
34 } catch (IllegalStateException e) {
35 e.printStackTrace();
36 } catch (IOException e) {
37 e.printStackTrace();
38 }
39 }

112-28 20:25:06.314: E/AndroidRuntime(30563): FATAL EXCEPTION: main
212-28 20:25:06.314: E/AndroidRuntime(30563): java.lang.IllegalStateException: Could not execute method of the activity
312-28 20:25:06.314: E/AndroidRuntime(30563): at android.view.View$1.onClick(View.java:3600)
412-28 20:25:06.314: E/AndroidRuntime(30563): at android.view.View.performClick(View.java:4106)
512-28 20:25:06.314: E/AndroidRuntime(30563): at android.view.View$PerformClick.run(View.java:17052)
612-28 20:25:06.314: E/AndroidRuntime(30563): at android.os.Handler.handleCallback(Handler.java:615)
712-28 20:25:06.314: E/AndroidRuntime(30563): at android.os.Handler.dispatchMessage(Handler.java:92)
812-28 20:25:06.314: E/AndroidRuntime(30563): at android.os.Looper.loop(Looper.java:137)
912-28 20:25:06.314: E/AndroidRuntime(30563): at android.app.ActivityThread.main(ActivityThread.java:5118)
1012-28 20:25:06.314: E/AndroidRuntime(30563): at java.lang.reflect.Method.invokeNative(Native Method)
1112-28 20:25:06.314: E/AndroidRuntime(30563): at java.lang.reflect.Method.invoke(Method.java:511)
1212-28 20:25:06.314: E/AndroidRuntime(30563): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:792)
1312-28 20:25:06.314: E/AndroidRuntime(30563): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
1412-28 20:25:06.314: E/AndroidRuntime(30563): at dalvik.system.NativeStart.main(Native Method)
1512-28 20:25:06.314: E/AndroidRuntime(30563): Caused by: java.lang.reflect.InvocationTargetException
1612-28 20:25:06.314: E/AndroidRuntime(30563): at java.lang.reflect.Method.invokeNative(Native Method)
1712-28 20:25:06.314: E/AndroidRuntime(30563): at java.lang.reflect.Method.invoke(Method.java:511)
1812-28 20:25:06.314: E/AndroidRuntime(30563): at android.view.View$1.onClick(View.java:3595)
1912-28 20:25:06.314: E/AndroidRuntime(30563): ... 11 more
2012-28 20:25:06.314: E/AndroidRuntime(30563): Caused by: java.lang.IllegalStateException
2112-28 20:25:06.314: E/AndroidRuntime(30563): at android.media.MediaRecorder.start(Native Method)
2212-28 20:25:06.314: E/AndroidRuntime(30563): at de.aleks.camera.MainActivity.recStart(MainActivity.java:247)
2312-28 20:25:06.314: E/AndroidRuntime(30563): ... 14 more

1recorder.start();

1public void recStart(final View View) {
2 if (isRecording) {
3 recorder.stop();
4 initMediaRecorder();
5 prepareMediaRecorder();
6
7 rec.getResources().getColor(android.R.color.white);
8 rec.setTextColor(Color.rgb(254, 254, 254));
9 } else {
10 recorder.start();
11 isRecording = true;
12
13 rec.setTextColor(Color.rgb(253, 3, 3));
14 }
15 }

1recorder.start();

1public class MainActivity extends Activity implements SurfaceHolder.Callback {
2
3 File videofile;
4 private static final String CAMERA = null;
5 private Camera camera;
6 SurfaceView surface;
7 SurfaceHolder holder;
8 private MediaRecorder recorder;
9 private boolean isRecording;
10
11 @Override
12 protected void onCreate(Bundle savedInstanceState) {
13 super.onCreate(savedInstanceState);
14 recorder = new MediaRecorder();
15 initMediaRecorder();
16 setContentView(R.layout.main);
17 surface = (SurfaceView) findViewById(R.id.surfaceView1);
18 SurfaceHolder holder = surface.getHolder();
19 holder.addCallback(this);
20 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
21 holder.setSizeFromLayout();
22 }
23 private void initMediaRecorder() {
24 isRecording = false;
25 recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
26 recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
27 CamcorderProfile profile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
28 recorder.setProfile(profile);
29 File dir = new File(Environment.getExternalStorageDirectory(),
30 this.getClass().getPackage().getName());
31 dir.mkdirs();
32 videofile = new File(dir.getAbsolutePath(), new SimpleDateFormat(
33 "'IMG_'yyyyMMddHHmmss'.mp4'").format(new Date()));
34 recorder.setOutputFile(videofile.getAbsolutePath());
35 }
36 public void recStart(final View View) {
37 if (isRecording) {
38 recorder.stop();
39 isRecording = false;
40 initMediaRecorder();
41 prepareMediaRecorder();
42 } else {
43 isRecording = true;
44 recorder.start();
45 }
46 }
47 private void prepareMediaRecorder() {
48 recorder.setPreviewDisplay(holder.getSurface());
49 try {
50 recorder.prepare();
51 } catch (IllegalStateException e) {
52 e.printStackTrace();
53 } catch (IOException e) {
54 e.printStackTrace();
55 }
56 }
57 @Override
58 public void surfaceChanged(SurfaceHolder holder, int format, int width,
59 int height) {
60 if (camera == null) {
61 camera = camera.open();
62 Camera.Parameters parameters = camera.getParameters();
63 parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
64 camera.setParameters(parameters);
65 try {
66 camera.setPreviewDisplay(holder);
67 camera.startPreview();
68 } catch (IOException e) {
69 e.printStackTrace();
70 }
71 try {
72 recorder.prepare();
73 } catch (IllegalStateException e1) {
74 e1.printStackTrace();
75 } catch (IOException e1) {
76 e1.printStackTrace();
77 }
78 }
79 }
80 @Override
81 public void surfaceCreated(SurfaceHolder holder) {
82 // TODO Auto-generated method stub
83 }
84 @Override
85 public void surfaceDestroyed(SurfaceHolder holder) {
86 // TODO Auto-generated method stub
87 }
88}

1<Button
2 android:id="@+id/recButton"
3 android:layout_width="wrap_content"
4 android:layout_height="wrap_content"
5 android:layout_alignParentRight="true"
6 android:layout_centerVertical="true"
7 android:background="@drawable/backgroud_rec"
8 android:text="R E C"
9 android:textColor="@color/weiss"
10 android:textSize="30sp"
11 android:textStyle="bold"
12 android:onClick="recStart" />

1public class MainActivity extends Activity implements SurfaceHolder.Callback {
2
3 private MediaRecorder recorder;
4 private SurfaceHolder surfaceHolder;
5 private boolean isRecording;
6
7@Override
8public void onCreate(Bundle savedInstanceState) {
9 super.onCreate(savedInstanceState);
10
11 recorder = new MediaRecorder();
12 initMediaRecorder();
13
14 setContentView(R.layout.main);
15 final SurfaceView view = (SurfaceView) findViewById(R.id.surfaceView);
16
17 view.setOnClickListener(new OnClickListener() {
18
19 @Override
20 public void onClick(View view) {
21 if (isRecording) {
22 recorder.stop();
23 initMediaRecorder();
24 prepareMediaRecorder();
25 } else {
26 recorder.start();
27 isRecording = true;
28 }
29 }
30
31 });
32
33 surfaceHolder = view.getHolder();
34 surfaceHolder.addCallback(this);
35 surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
36}
37
38private void initMediaRecorder() {
39 isRecording = false;
40 recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
41 recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
42 CamcorderProfile profile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
43 recorder.setProfile(profile);
44 File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
45 dir.mkdirs();
46 File file = new File(dir, "video.mp4");
47 recorder.setOutputFile(file.getAbsolutePath());
48 recorder.setMaxDuration(60000);
49}
50private void prepareMediaRecorder() {
51 recorder.setPreviewDisplay(surfaceHolder.getSurface());
52 try {
53 recorder.prepare();
54 } catch (IllegalStateException e) {
55 e.printStackTrace();
56 } catch (IOException e) {
57 e.printStackTrace();
58 }
59}
60
61@Override
62public void surfaceChanged(SurfaceHolder holder, int format, int width,
63 int height) {
64 // TODO Auto-generated method stub
65
66}
67
68@Override
69public void surfaceCreated(SurfaceHolder holder) {
70 prepareMediaRecorder();
71
72}
73
74@Override
75public void surfaceDestroyed(SurfaceHolder holder) {
76 if (isRecording) {
77 recorder.stop();
78 isRecording = false;
79 }
80 recorder.release();
81 finish();
82}