android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
android:id="@+id/preview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
android:layout_width="fill_parent"
android:layout_height="100dip"
android:layout_alignParentBottom="true"
android:gravity="center_vertical"
android:background="#A000">
android:layout_width="100dip"
android:layout_height="wrap_content"
android:text="Cancel"
android:onClick="onCancelClick"
/>
android:layout_width="100dip"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="Snap Photo"
android:onClick="onSnapClick"
/>
package app.test;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import android.app.Activity;
import android.hardware.Camera;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Toast;
public class PreviewActivity extends Activity implements SurfaceHolder.Callback, Camera.ShutterCallback, Camera.PictureCallback {
Camera mCamera;
SurfaceView mPreview;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mPreview = (SurfaceView)findViewById(R.id.preview);
mPreview.getHolder().addCallback(this);
mPreview.getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mCamera = Camera.open();
}
@Override
public void onPause() {
super.onPause();
mCamera.stopPreview();
}
@Override
public void onDestroy() {
super.onDestroy();
mCamera.release();
Log.d("CAMERA","Destroy");
}
public void onCancelClick(View v) {
finish();
}
public void onSnapClick(View v) {
mCamera.takePicture(this, null, null, this);
}
@Override
public void onShutter() {
Toast.makeText(this, "Click!", Toast.LENGTH_SHORT).show();
}
@Override
public void onPictureTaken(byte[] data, Camera camera) {
//Here, we chose internal storage
try {
FileOutputStream out = openFileOutput("picture.jpg", Activity.MODE_PRIVATE);
out.write(data);
out.flush();
out.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
camera.startPreview();
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
Camera.Parameters params = mCamera.getParameters();
List sizes = params.getSupportedPreviewSizes();
Camera.Size selected = sizes.get(0);
params.setPreviewSize(selected.width,selected.height);
mCamera.setParameters(params);
mCamera.setDisplayOrientation(90);
mCamera.startPreview();
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
try {
mCamera.setPreviewDisplay(mPreview.getHolder());
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i("PREVIEW","surfaceDestroyed");
}
}