hi i am new to android .
i want to devlope for camera api
but i have some problem in my code
when i tried to capture image it gives me force close errors
package indiaNIC.android.cameratest;
import java.io.IOException;
import android.app.Activity;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
public class cameratest extends Activity implements
SurfaceHolder.Callback
{
private static final String TAG = "CameraApiTest";
Camera mCamera;
boolean mPreviewRunning = false;
public void onCreate(Bundle icicle)
{
super.onCreate(icicle);
Log.e(TAG, "onCreate");
getWindow().setFormat(PixelFormat.TRANSLUCENT);
setContentView(R.layout.main);
mSurfaceView = (SurfaceView)findViewById(R.id.surface);
mSurfaceHolder = mSurfaceView.getHolder();
mSurfaceHolder.addCallback(this);
mSurfaceHolder.setType
(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
public boolean onCreateOptionsMenu(android.view.Menu menu) {
MenuItem item = menu.add(0, 0, 0, "goto gallery");
item.setOnMenuItemClickListener(new
MenuItem.OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
Uri target = Uri.parse("content://media/external/
images/media");
Intent intent = new Intent(Intent.ACTION_VIEW,
target);
startActivity(intent);
return true;
}
});
return true;
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState)
{
super.onRestoreInstanceState(savedInstanceState);
}
Camera.PictureCallback mPictureCallback = new
Camera.PictureCallback() {
public void onPictureTaken(byte[] data, Camera c) {
Log.e(TAG, "PICTURE CALLBACK: data.length = " +
data.length);
mCamera.startPreview();
}
};
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if (keyCode == KeyEvent.KEYCODE_BACK) {
return super.onKeyDown(keyCode, event);
}
if (keyCode == KeyEvent.KEYCODE_SPACE) {
mCamera.takePicture(null, mPictureCallback,
mPictureCallback);
return true;
}
return false;
}
protected void onResume()
{
Log.e(TAG, "onResume");
super.onResume();
}
protected void onSaveInstanceState(Bundle outState)
{
super.onSaveInstanceState(outState);
}
protected void onStop()
{
Log.e(TAG, "onStop");
super.onStop();
}
public void surfaceCreated(SurfaceHolder holder)
{
Log.e(TAG, "surfaceCreated");
mCamera = Camera.open();
//mCamera.startPreview();
}
public void surfaceChanged(SurfaceHolder holder, int format, int
w, int h)
{
Log.e(TAG, "surfaceChanged");
// XXX stopPreview() will crash if preview is not running
if (mPreviewRunning) {
mCamera.stopPreview();
}
Camera.Parameters p = mCamera.getParameters();
p.setPreviewSize(w, h);
mCamera.setParameters(p);
try {
mCamera.setPreviewDisplay(holder);
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
mCamera.startPreview();
mPreviewRunning = true;
}
public void surfaceDestroyed(SurfaceHolder holder)
{
Log.e(TAG, "surfaceDestroyed");
mCamera.stopPreview();
mPreviewRunning = false;
mCamera.release();
}
private SurfaceView mSurfaceView;
private SurfaceHolder mSurfaceHolder;
}
package indiaNIC.android.cameratest;
import java.io.OutputStream;
import android.graphics.Camera;
import android.hardware.Camera.PictureCallback;
import android.util.Log;
public class ImageCaptureCallback implements PictureCallback {
private OutputStream filoutputStream;
public ImageCaptureCallback(OutputStream filoutputStream) {
this.filoutputStream = filoutputStream;
}
public void onPictureTaken(byte[] data, Camera camera) {
try {
Log.v(getClass().getSimpleName(), "onPictureTaken=" + data + "
length = " + data.length);
filoutputStream.write(data);
filoutputStream.flush();
filoutputStream.close();
} catch(Exception ex) {
ex.printStackTrace();
}
}
@Override
public void onPictureTaken(byte[] arg0, android.hardware.Camera arg1)
{
// TODO Auto-generated method stub
}
}
this 2 java class is my code
plz help me on this its urgent
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