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public class AndroidCamera extends Activity implements OnTouchListener, SurfaceHolder.Callback{
Camera camera;
SurfaceView surfaceView;
SurfaceHolder surfaceHolder;
boolean previewing = false;;
PictureCallback rawCallback;
ShutterCallback shutterCallback;
PictureCallback jpegCallback;
EditText txtData, Info,Age;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button buttonStartCameraPreview = (Button)findViewById(R.id.startcamerapreview);
Button buttonStopCameraPreview = (Button)findViewById(R.id.stopcamerapreview);
Button buttonCapturePreview = (Button) findViewById(R.id.capturepreview);
txtData = (EditText) findViewById(R.id.editText1);
Info = (EditText) findViewById(R.id.Name);
Info.setHint("enter name");
Age = (EditText) findViewById(R.id.Age);
Age.setHint("Age");
getWindow().setFormat(PixelFormat.UNKNOWN);
surfaceView = (SurfaceView)findViewById(R.id.surfaceview);
surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(this);
rawCallback = new PictureCallback()
{
public void onPictureTaken(byte[] data, Camera camera)
{
Log.d("Log", "onPictureTaken - raw");
}
};
shutterCallback = new ShutterCallback()
{
public void onShutter() {
Log.i("Log", "onShutter'd");
}
};
// onTouchEvent(null);
jpegCallback = new PictureCallback()
{
public void onPictureTaken(byte[] data, Camera camera)
{
Intent imageIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
File imagesFolder = new File(Environment.getExternalStorageDirectory(), "Asw");
imagesFolder.mkdirs();
Date d = new Date();
CharSequence s = DateFormat.format("MM-dd-yy hh-mm-ss", d.getTime());
File output = new File(imagesFolder, s.toString() + ".jpg");
Uri uriSavedImage = Uri.fromFile(output);
imageIntent.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);
OutputStream imageFileOS;
try {
imageFileOS = getContentResolver().openOutputStream(uriSavedImage);
imageFileOS.write(data);
imageFileOS.flush();
imageFileOS.close();
Toast.makeText(AndroidCamera.this,
"Image saved: ",
Toast.LENGTH_LONG).show();
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
finally
{}
Log.d("Log", "onPictureTaken - jpeg");
}
};
buttonStartCameraPreview.setOnClickListener(new Button.OnClickListener()
{
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
@Override
public void onClick(View v)
{
if(!previewing)
{
camera = Camera.open(0);
if (camera != null)
{
try {
camera.setPreviewDisplay(surfaceHolder);
camera.startPreview();
previewing = true;
}
catch (IOException e)
{
e.printStackTrace();
}
}else txtData.setText("null");
}
}});
buttonCapturePreview.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
captureImage();
}
private void captureImage()
{
camera.takePicture(shutterCallback, rawCallback, jpegCallback);
}
});
buttonStopCameraPreview.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v)
{
if(camera != null && previewing)
{
camera.stopPreview();
camera.release();
camera = null;
previewing = false;
}
}});
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.android_camera, menu);
return true;
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height)
{
// TODO Auto-generated method stub
}
@Override
public void surfaceCreated(SurfaceHolder holder)
{
// TODO Auto-generated method stub
}
@Override
public void surfaceDestroyed(SurfaceHolder holder)
{
// TODO Auto-generated method stub
}
public boolean onTouch(View v, MotionEvent event)
{
if (event.getAction() == MotionEvent.ACTION_MOVE)
{
camera.takePicture(shutterCallback, rawCallback, jpegCallback);
}
return super.onTouchEvent(event);
//return false;
}
我已經使用了一個按鈕來捕捉圖像。現在我想通過觸摸表面視圖來捕捉和保存圖像。我寫了一些代碼。它沒有顯示任何錯誤，但它也沒有工作。你能告訴我我哪裏錯了嗎？請幫助如何在表面視圖上觸摸捕捉圖像
感謝您的幫助，但我不希望以編程方式做到這一點。我需要拍照時，當我觸摸屏幕...任何建議請 – Aswathy
onTouch你可以調用此方法.. –
我想我做到了這一點....但有些事情是失蹤....請你驗證我的代碼 – Aswathy