本文介绍了添加图片到表面观在安卓的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我要添加图像表面观。所以我用低于code
I want to add image to Surface view. So i used below code
public class MySurfaceView extends SurfaceView implements SurfaceHolder.Callback{
Bitmap myicon;
Canvas canvas;
private Paint mBitmapPaint;
Paint p= new Paint();
@Override
protected void onDraw(Canvas canvas) {
Bitmap myicon=BitmapFactory.decodeResource(getResources(),R.drawable.icon);
canvas.drawColor(Color.BLACK);
canvas.drawBitmap(myicon, 0,0, p);
// canvas.drawBitmap(myicon, 0,0, null);
// canvas.drawBitmap(myicon, 25,25, null);
}
public MySurfaceView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
public void surfaceCreated(SurfaceHolder holder) {
// TODO Auto-generated method stub
}
public void surfaceDestroyed(SurfaceHolder arg0) {
// TODO Auto-generated method stub
}
}
但它显示黑屏。我没有得到我做错了什么上面code。
But it shows black screen. I didn't get what i did wrong in above code.
请解决该问题
在此先感谢。
推荐答案
下面是您的解决方案的好友,也期待在从那里我得到了的
Here is your solution Buddy, Also look at this link from where I got the solution
MainAct.java
public class MainAct extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mySurfaceView mySurfaceView = new mySurfaceView(getApplicationContext());
setContentView(mySurfaceView);
}
}
mySurfaceView.java
public class mySurfaceView extends SurfaceView implements
SurfaceHolder.Callback {
private TutorialThread _thread;
public mySurfaceView(Context context) {
super(context);
getHolder().addCallback(this);
_thread = new TutorialThread(getHolder(), this);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
Bitmap _scratch = BitmapFactory.decodeResource(getResources(),
R.drawable.icon);
canvas.drawColor(Color.BLACK);
canvas.drawBitmap(_scratch, 10, 10, null);
}
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
}
public void surfaceCreated(SurfaceHolder arg0) {
_thread.setRunning(true);
_thread.start();
}
public void surfaceDestroyed(SurfaceHolder arg0) {
boolean retry = true;
_thread.setRunning(false);
while (retry) {
try {
_thread.join();
retry = false;
} catch (InterruptedException e) {
}
}
}
class TutorialThread extends Thread {
private SurfaceHolder _surfaceHolder;
private mySurfaceView _panel;
private boolean _run = false;
public TutorialThread(SurfaceHolder surfaceHolder, mySurfaceView panel) {
_surfaceHolder = surfaceHolder;
_panel = panel;
}
public void setRunning(boolean run) {
_run = run;
}
@Override
public void run() {
Canvas c;
while (_run) {
c = null;
try {
c = _surfaceHolder.lockCanvas(null);
synchronized (_surfaceHolder) {
_panel.onDraw(c);
}
} finally {
if (c != null) {
_surfaceHolder.unlockCanvasAndPost(c);
}
}
}
}
}
}
编辑:
droidnova网站不支持anymore.I已经找到替代的网站的由具有相同源。
droidnova website is not available anymore.I have found alternative website here which is having same source.
我希望这会有所帮助!
这篇关于添加图片到表面观在安卓的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!