Frage zu Android Handykamera ( Code Frage )

Hallo liebe Community ich habe Frage an euch, u.z weiß jemand wie man den Auslöser der Handykamera in eine App einbaut(ich möchte nicht die Komplette Kamera haben sondern nur den Button) geht das ? Und wenn ja könnt ihr mir gleich eine Link für den Code in die Antwort packen oder nur den Code ?

— geändert am 22.08.2014, 15:10:17

Hallo Michele, leider war dieser Link nicht so sehr hilfreich da die Seite nicht wirklich gut aufgebaut ist, trotzdem vielen Dank.

LG Philipp

— geändert am 23.08.2014, 14:18:49

Das ist es ja, ich möchte keine Kamera so aufrufen sondern nur den Auslöser für die Kamera verwenden.

LG Philipp

Ja möchte ich, ich möchte das Bild auch abspeichern.

1. Wie geht Nr. 1 ???

2. Nein ich habe das noch nie gesehen aber es kann doch trotzdem möglich sein oder ?

Ok danke.

— geändert am 24.08.2014, 12:05:55

Ja aber jetzt habe ich das Problem das ich selber auf den Auslöser tippen muss, das will ich eben nicht.

Hat jemand noch einen anderen Plan ???

Das ist es ja ich programmiere gerade eine App wo man später mit Sprache ein Bild macht, den Teil mit der Sprachfunktion habe ich, aber nicht den Teil wo ein Bild gemacht wird.

— geändert am 24.08.2014, 15:40:08

Ja toll und wie soll das gehen ??? könnte irgendjemand mir mal bitte ein Fertiges script schicken !!! ???

— geändert am 24.08.2014, 17:45:55

Die App stürzt immer ab wo ist der Fehler???

public class MainActivity extends ActionBarActivity {



public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback {
    private SurfaceHolder mHolder;
    private Camera mCamera;

    public CameraPreview(Context context, Camera camera) {
        super(context);
        mCamera = camera;

        // Install a SurfaceHolder.Callback so we get notified when the
        // underlying surface is created and destroyed.
        mHolder = getHolder();
        mHolder.addCallback(this);
        // deprecated setting, but required on Android versions prior to 3.0
        mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
    }

    public void surfaceCreated(SurfaceHolder holder) {
        // The Surface has been created, now tell the camera where to draw the preview.
        try {
            mCamera.setPreviewDisplay(holder);
            mCamera.startPreview();
        } catch (IOException e) {
            //Log.d(TAG, "Error setting camera preview: " + e.getMessage());
        }
    }

    public void surfaceDestroyed(SurfaceHolder holder) {
        // empty. Take care of releasing the Camera preview in your activity.
    }

    public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
        // If your preview can change or rotate, take care of those events here.
        // Make sure to stop the preview before resizing or reformatting it.

        if (mHolder.getSurface() == null){
          // preview surface does not exist
          return;
        }

        // stop preview before making changes
        try {
            mCamera.stopPreview();
        } catch (Exception e){
          // ignore: tried to stop a non-existent preview
        }

        // set preview size and make any resize, rotate or
        // reformatting changes here

        // start preview with new settings
        try {
            mCamera.setPreviewDisplay(mHolder);
            mCamera.startPreview();

        } catch (Exception e){
            //Log.d(TAG, "Error starting camera preview: " + e.getMessage());
        }
    }
}

private Camera mCamera;
private CameraPreview mPreview;

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

    // Create an instance of Camera
    //mCamera = getCameraInstance();

    // Create our Preview view and set it as the content of our activity.
    mPreview = new CameraPreview(this, mCamera);
    FrameLayout preview = (FrameLayout) findViewById(R.id.camera_preview);
    preview.addView(mPreview);
}

private PictureCallback mPicture = new PictureCallback() {

    @Override
    public void onPictureTaken(byte[] data, Camera camera) {

        File pictureFile = getOutputMediaFile(MEDIA_TYPE_IMAGE);
        if (pictureFile == null){
            //Log.d(TAG, "Error creating media file, check storage permissions: " +
              //  e.getMessage());
            return;
        }

        try {
            FileOutputStream fos = new FileOutputStream(pictureFile);
            fos.write(data);
            fos.close();
        } catch (FileNotFoundException e) {
            //Log.d(TAG, "File not found: " + e.getMessage());
        } catch (IOException e) {
            //Log.d(TAG, "Error accessing file: " + e.getMessage());
        }
    }

};



        public void test (View view) {
            // get an image from the camera
            mCamera.takePicture(null, null, mPicture);
        }

        public static final int MEDIA_TYPE_IMAGE = 1;
        public static final int MEDIA_TYPE_VIDEO = 2;

        /** Create a file Uri for saving an image or video */
        private static Uri getOutputMediaFileUri(int type){
              return Uri.fromFile(getOutputMediaFile(type));
        }

        /** Create a File for saving an image or video */
        private static File getOutputMediaFile(int type){
            // To be safe, you should check that the SDCard is mounted
            // using Environment.getExternalStorageState() before doing this.

            File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(
                      Environment.DIRECTORY_PICTURES), "MyCameraApp");
            // This location works best if you want the created images to be shared
            // between applications and persist after your app has been uninstalled.

            // Create the storage directory if it does not exist
            if (! mediaStorageDir.exists()){
                if (! mediaStorageDir.mkdirs()){
                    Log.d("MyCameraApp", "failed to create directory");
                    return null;
                }
            }

            // Create a media file name
            String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
            File mediaFile;
            if (type == MEDIA_TYPE_IMAGE){
                mediaFile = new File(mediaStorageDir.getPath() + File.separator +
                "IMG_"+ timeStamp + ".jpg");
            } else if(type == MEDIA_TYPE_VIDEO) {
                mediaFile = new File(mediaStorageDir.getPath() + File.separator +
                "VID_"+ timeStamp + ".mp4");
            } else {
                return null;
            }

            return mediaFile;
        }


@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;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
        return true;
    }
    return super.onOptionsItemSelected(item);
}

/**
 * A placeholder fragment containing a simple view.
 */
public static class PlaceholderFragment extends Fragment {

    public PlaceholderFragment() {
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_main, container,
                false);
        return rootView;
    }
}

}

Nein ich habe auch permissons aber die App stürzt immer ab.

Das sind die Warnungen:

Description Resource Path Location Type
Should use "sp" instead of "dp" for text sizes activity_ep8.xml /Ep8/res/layout line 13 Android Lint Problem
Use a layout_width of 0dip instead of fill_parent for better performance activity_main.xml /Test4/res/layout line 9 Android Lint Problem
The import android.os.Build is never used MainActivity.java /Camera2/src/de/test/camera2 line 31 Java Problem
[I18N] Hardcoded string "Capture", should use @string resource activity_main.xml /Test4/res/layout line 16 Android Lint Problem
The method setType(int) from the type SurfaceHolder is deprecated MainActivity.java /Camera2/src/de/test/camera2 line 52 Java Problem
The field SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS is deprecated MainActivity.java /Camera2/src/de/test/camera2 line 52 Java Problem
The value of the field MainActivity.mPreview is not used MainActivity.java /Camera2/src/de/test/camera2 line 116 Java Problem
The import android.graphics.Bitmap is never used MainActivity.java /Camera2/src/de/test/camera2 line 16 Java Problem
The import android.os.Environment is never used MainActivity.java /Camera2/src/de/test/camera2 line 21 Java Problem
[Accessibility] Missing contentDescription attribute on image activity_main.xml /camera/res/layout line 8 Android Lint Problem
The import android.util.Log is never used MainActivity.java /Camera2/src/de/test/camera2 line 22 Java Problem
The import android.widget.FrameLayout is never used MainActivity.java /Camera2/src/de/test/camera2 line 30 Java Problem
The import java.text.SimpleDateFormat is never used MainActivity.java /Camera2/src/de/test/camera2 line 7 Java Problem
The import java.util.Date is never used MainActivity.java /Camera2/src/de/test/camera2 line 8 Java Problem
The import android.support.v7.app.ActionBar is never used MainActivity.java /Camera2/src/de/test/camera2 line 11 Java Problem
The import android.app.Activity is never used MainActivity.java /Camera2/src/de/test/camera2 line 13 Java Problem
The import java.io.File is never used MainActivity.java /Camera2/src/de/test/camera2 line 3 Java Problem
The import java.io.FileNotFoundException is never used MainActivity.java /Camera2/src/de/test/camera2 line 4 Java Problem
The import java.io.FileOutputStream is never used MainActivity.java /Camera2/src/de/test/camera2 line 5 Java Problem
The import java.io.File is never used MainActivity.java /camera/src/de/test/camera line 3 Java Problem
The import java.io.InputStream is never used MainActivity.java /camera/src/de/test/camera line 12 Java Problem
The import android.app.Activity is never used MainActivity.java /camera/src/de/test/camera line 21 Java Problem
The import java.io.FileNotFoundException is never used MainActivity.java /camera/src/de/test/camera line 10 Java Problem
The import java.io.IOException is never used MainActivity.java /camera/src/de/test/camera line 11 Java Problem
The import android.support.v7.app.ActionBar is never used MainActivity.java /camera/src/de/test/camera line 7 Java Problem
The import android.support.v4.app.Fragment is never used MainActivity.java /camera/src/de/test/camera line 8 Java Problem
The import java.io.IOException is never used MainActivity.java /camera/src/de/test/camera line 4 Java Problem
The import android.support.v7.app.ActionBarActivity is never used MainActivity.java /camera/src/de/test/camera line 6 Java Problem
The import android.widget.ImageView is never used MainActivity.java /camera/src/de/test/camera line 27 Java Problem
The import android.widget.Button is never used MainActivity.java /camera/src/de/test/camera line 26 Java Problem
The import android.os.Build is never used MainActivity.java /a-virus/src/de/philipphoerig/avirus line 18 Java Problem
The import android.graphics.Bitmap is never used MainActivity.java /camera/src/de/test/camera line 23 Java Problem
The import android.util.Log is never used MainActivity.java /a-virus/src/de/philipphoerig/avirus line 9 Java Problem
The import android.content.Intent is never used MainActivity.java /camera/src/de/test/camera line 22 Java Problem
The import android.view.MenuInflater is never used MainActivity.java /a-virus/src/de/philipphoerig/avirus line 12 Java Problem
The import android.support.v7.app.ActionBar is never used MainActivity.java /a-virus/src/de/philipphoerig/avirus line 4 Java Problem
The import android.view.View is never used MainActivity.java /camera/src/de/test/camera line 25 Java Problem
The import android.os.Bundle is never used MainActivity.java /camera/src/de/test/camera line 24 Java Problem
The import android.app.Activity is never used MainActivity.java /a-virus/src/de/philipphoerig/avirus line 6 Java Problem
The method setType(int) from the type SurfaceHolder is deprecated MainActivity.java /Test4/src/com/example/test4 line 53 Java Problem
The import android.os.Build is never used MainActivity.java /Test4/src/com/example/test4 line 34 Java Problem
The method getOutputMediaFileUri(int) from the type MainActivity is never used locally MainActivity.java /Test4/src/com/example/test4 line 153 Java Problem
The field SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS is deprecated MainActivity.java /Test4/src/com/example/test4 line 53 Java Problem
The import android.support.v7.app.ActionBar is never used MainActivity.java /Test4/src/com/example/test4 line 15 Java Problem
The import com.example.test4.R.id is never used MainActivity.java /Test4/src/com/example/test4 line 12 Java Problem
The import android.widget.Button is never used MainActivity.java /Test4/src/com/example/test4 line 32 Java Problem
The import android.graphics.Rect is never used MainActivity.java /Test4/src/com/example/test4 line 18 Java Problem
The import java.util.List is never used MainActivity.java /Test4/src/com/example/test4 line 10 Java Problem
The import java.util.ArrayList is never used MainActivity.java /Test4/src/com/example/test4 line 8 Java Problem

(LogCat Entfernt)

— geändert am 25.08.2014, 18:23:23

Ok ich sende gleich mal die Rotenzeilen und ja habe ich aber es kommt eine Fehler Meldung da er getCameraInstance nicht kennt.

08-25 11:08:51.045: E/AndroidRuntime(21440): FATAL EXCEPTION: main 
08-25 11:08:51.045: E/AndroidRuntime(21440): Process: com.example.test4, PID: 21440 
08-25 11:08:51.045: E/AndroidRuntime(21440): java.lang.NullPointerException 
08-25 11:08:51.045: E/AndroidRuntime(21440): at com.example.test4.MainActivity$CameraPreview.surfaceCreated(MainActivity.java:59) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.SurfaceView.updateWindow(SurfaceView.java:572) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.SurfaceView.access$000(SurfaceView.java:86) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:175) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:847) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1867) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:996) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5600) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.Choreographer.doCallbacks(Choreographer.java:574) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.Choreographer.doFrame(Choreographer.java:544) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.os.Handler.handleCallback(Handler.java:733) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.os.Handler.dispatchMessage(Handler.java:95) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.os.Looper.loop(Looper.java:136) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at android.app.ActivityThread.main(ActivityThread.java:5001) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at java.lang.reflect.Method.invokeNative(Native Method) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at java.lang.reflect.Method.invoke(Method.java:515) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 
08-25 11:08:51.045: E/AndroidRuntime(21440): at dalvik.system.NativeStart.main(Native Method)

— geändert am 25.08.2014, 18:11:34 durch Moderator

mCamera.setPreviewDisplay(holder);

Ok was soll ich gegen null einsetzten ???

Ja also mCamera wenn ich das aber einfüge steht da Incompatible operand types Surface and Camera

— geändert am 27.08.2014, 14:52:13

Hat jemand ne Idee ???

— geändert am 27.08.2014, 16:00:33

Irgendjemand ???

1. Ich weiß ja nicht wie b.z.W es steht ja nirgends.

2. Sorry

— geändert am 27.08.2014, 17:45:13