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POhow to Add button to the camera preview android?
 

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  1. POhow to Add button to the camera preview android?
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    <p>I am developing photography app my requrement is overlay effects to camera preview for that i developed code.in this code i overlay image to the surfaceview.</p> <pre><code>public class OverlayLiveCamera extends Activity { Camera camera; LayoutInflater controlInflater = null; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); Preview mPreview = new Preview(this); DrawOnTop mDraw = new DrawOnTop(this); setContentView(mPreview); addContentView(mDraw, new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); } class Preview extends SurfaceView implements SurfaceHolder.Callback{ SurfaceHolder mHolder; Preview(Context context) { super(context); // Install a SurfaceHolder.Callback so we get notified when the // underlying surface is created and destroyed. mHolder = getHolder(); mHolder.addCallback(this); mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } public void surfaceCreated(SurfaceHolder holder) { // The Surface has been created, acquire the camera and tell it where // to draw. camera = Camera.open(); try { camera.setPreviewDisplay(holder); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public void surfaceDestroyed(SurfaceHolder holder) { // Surface will be destroyed when we return, so stop the preview. // Because the CameraDevice object is not a shared resource, it's very // important to release it when the activity is paused. camera.stopPreview(); camera = null; } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { // Now that the size is known, set up the camera parameters and begin // the preview. Camera.Parameters parameters = camera.getParameters(); parameters.setPreviewSize(w, h); parameters=camera.getParameters(); camera.setParameters(parameters); camera.startPreview(); } } class DrawOnTop extends View { public DrawOnTop(Context context) { super(context); // TODO Auto-generated constructor stub } @Override protected void onDraw(Canvas canvas) { // TODO Auto-generated method stub Bitmap mBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.water); Paint paint = new Paint(); paint.setAlpha(100); canvas.drawBitmap(mBitmap, 0, 0, paint); super.onDraw(canvas); } } </code></pre> <p>my xml code</p> <pre><code>&lt;FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"&gt; &lt;SurfaceView android:id="@+id/surfaceView1" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/SurfaceView&gt; &lt;LinearLayout android:id="@+id/linearLayout1" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt; &lt;Button android:text="Button" android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/Button&gt; &lt;Button android:text="Button" android:id="@+id/button2" android:layout_width="wrap_content" android:layout_height="wrap_content"&gt;&lt;/Button&gt; &lt;/LinearLayout&gt; &lt;/FrameLayout&gt; </code></pre> <p>for it will surfaceview and overlay image but it will not show button and also when i click button the overlay view capture and save into the sd card.</p> <p>please help me.</p>
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