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POhow to run Sample camera program in Android , to take pictures
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  1. POhow to run Sample camera program in Android , to take pictures
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    copied!<p>I want to write a Android Program for Camera that captures pictures. I written code in such a way when I click a button, it should be captured, but noting is happeneing. Button click happens , but control doesnot come to "onPictureTaken". I am pasting my code here:</p> <h2>Activity</h2> <pre><code>package com.andr.sai.camerademo; import java.io.IOException; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.PixelFormat; import android.hardware.Camera; import android.os.Bundle; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.view.View.OnClickListener; import android.widget.Button; public class camerademo extends Activity implements SurfaceHolder.Callback { /** Called when the activity is first created. */ SurfaceView mSurfaceView ; SurfaceHolder mSurfaceHolder; boolean mPreviewRunning; Camera mCamera; Bitmap bitmap = null; Button b1; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getWindow().setFormat(PixelFormat.TRANSLUCENT); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.camera_surface); b1=(Button)findViewById(R.id.b1); mSurfaceView = (SurfaceView) findViewById(R.id.surface_camera); mSurfaceHolder = mSurfaceView.getHolder(); mSurfaceHolder.addCallback(this); mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); b1.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { System.out.println("111111111111111111111111"); Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() { public void onPictureTaken(byte[]imageData, Camera arg1) { System.out.println("2222222222222222222222222222222222222"); BitmapFactory.Options opt = new BitmapFactory.Options(); bitmap = BitmapFactory.decodeByteArray(imageData, 0, imageData.length, opt); } }; } } ); } @Override public void surfaceChanged(SurfaceHolder holder, int arg1, int w, int h) { if (mPreviewRunning) { mCamera.stopPreview(); } Camera.Parameters p = mCamera.getParameters(); p.setPreviewSize(w, h); mCamera.setParameters(p); try { mCamera.setPreviewDisplay(holder); } catch (IOException e) { e.printStackTrace(); } mCamera.startPreview(); mPreviewRunning = true; } @Override public void surfaceCreated(SurfaceHolder arg0) { mCamera = Camera.open(); } @Override public void surfaceDestroyed(SurfaceHolder arg0) { mCamera.stopPreview(); mPreviewRunning = false; mCamera.release(); } public void onDraw(Canvas c) { c.drawColor(Color.WHITE); c.drawBitmap( bitmap, 10, 10, null); } } </code></pre> <h2>camera_surface.xml</h2> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" &gt; &lt;SurfaceView android:id="@+id/surface_camera" android:layout_width="fill_parent" android:layout_height="10dip" android:layout_weight="1" &gt; &lt;/SurfaceView&gt; &lt;Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Gettt" android:id="@+id/b1" &gt;&lt;/Button&gt; &lt;/LinearLayout&gt; </code></pre> <p>In debug mode I ran this one and I am getting the following debug strings:</p> <pre><code>08-24 17:43:41.293: ERROR/MediaPlayerService(30): error: -2 08-24 17:43:41.303: ERROR/MediaPlayer(30): Unable to to create media player 08-24 17:43:41.303: ERROR/CameraService(30): Failed to load CameraService sounds. 08-24 17:43:41.334: ERROR/MediaPlayerService(30): error: -2 08-24 17:43:41.344: ERROR/MediaPlayer(30): Unable to to create media player 08-24 17:43:41.344: ERROR/CameraService(30): Failed to load CameraService sounds. 08-24 17:43:41.354: DEBUG/CameraService(30): Client::Client X (pid 421) 08-24 17:43:41.364: DEBUG/CameraService(30): CameraService::connect X 08-24 17:43:41.364: DEBUG/CameraService(30): getParameters(picture-format=jpeg;picture-size=213x350;preview-format=yuv422sp;preview-frame-rate=15;preview-size=176x144) 08-24 17:43:41.445: DEBUG/CameraService(30): setParameters(preview-size=320x432;preview-format=yuv422sp;picture-size=213x350;picture-format=jpeg;preview-frame-rate=15) 08-24 17:43:41.445: DEBUG/CameraHardwareStub(30): initHeapLocked: preview size=320x432 08-24 17:43:41.455: DEBUG/CameraService(30): setPreviewDisplay(0xe1f0) (pid 421) 08-24 17:43:41.464: DEBUG/CameraService(30): startPreview (pid 421) 08-24 17:43:41.464: DEBUG/CameraService(30): startCameraMode(0) (pid 421) 08-24 17:43:41.464: DEBUG/CameraService(30): startPreviewMode (pid 421) </code></pre> <p>Can u help me how to run Sample camera program in Android , to take pictures.</p>
 

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