Android Programming Tutorials

Photographic Memory

Step #3: Create the Photographer Class

Next, we need a class that will both connect the live preview to the

SurfaceView, plus intercept the camera button for use in taking an actual

picture. To keep things simple, we will hold off for now on doing anything

"for real" with the actual picture.

With that in mind, add a Photographer class that looks like the following:

package apt.tutorial;

import android.app.Activity;

import android.graphics.PixelFormat;

import android.hardware.Camera;

import android.os.Bundle;

import android.os.Environment;

import android.util.Log;

import android.view.KeyEvent;

import android.view.SurfaceHolder;

import android.view.SurfaceView;

import android.widget.Toast;

public class Photographer extends Activity {

private SurfaceView preview=null;

private SurfaceHolder previewHolder=null;

private Camera camera=null;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.photographer);

preview=(SurfaceView)findViewById(R.id.preview);

previewHolder=preview.getHolder();

previewHolder.addCallback(surfaceCallback);

previewHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

}

@Override

public boolean onKeyDown(int keyCode, KeyEvent event) {

if (keyCode==KeyEvent.KEYCODE_CAMERA ||

keyCode==KeyEvent.KEYCODE_SEARCH) {

takePicture();

return(true);

}

return(super.onKeyDown(keyCode, event));

}

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