我有一个增强现实应用程序,它显示了摄像机视图和带有多边形的GLSurfaceView,可以旋转触摸屏幕。我的应用程序的主要布局是FrameLayout。 frameLayout包含cameraView和GLSurfaceView。我的应用程序在屏幕上有两个按钮(放大/缩小),覆盖在cameraView上的RelativeLayout。
问题是摄影机视图与其他两个视图(缩放按钮和带多边形的GLSurfaceView)重叠,我只能在屏幕上看到cameraView。如果我从我的应用程序的主FrameLayout中删除cameraview,那么我可以看到GLSurfaceView和缩放按钮没有问题。
我该如何解决这个问题?我需要GLSurfaceView覆盖cameraView和RelativeLayout,缩放按钮覆盖GLSurfaceView ......
一些更新:
我在Android 2.2.2(motorola Droid)中检查过它完美无缺,但如果我在1.5到2.1的版本上进行测试,那么它的工作效果很差,相机视图会覆盖其他视图...
我还检查了如果我在我的应用程序的内容视图上反转视图的位置(首先是GLSurfaceView,在相机之后,最后是按钮),然后在Android 1.5到2.1上工作...但是然后不适用于Android 2.2.2及更高版本!我为此疯狂......
这是代码:
public class ARLambo3DSample extends Activity {
private CustomCameraView cv=null;
private ImageView minus;
private ImageView plus;
private MySurfaceView mySurfaceView;
private boolean pressed=false; //algún boton de zoom pulsado
private boolean zoomIn=false; //si zoomIn=true entonces hace zoomIn y si es false hace zoomOut
private myThread t1; //Hilo que gestiona el zoomIn y el zoomOut
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
FrameLayout fl = new FrameLayout(this.getApplicationContext());
cv = new CustomCameraView(this.getApplicationContext());
RelativeLayout rl= new RelativeLayout(this.getApplicationContext());
//turn off the window's title bar
requestWindowFeature(Window.FEATURE_NO_TITLE);
//fullscreen
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
fl.addView(cv);
minus= new ImageView(getApplicationContext());
minus.setImageResource(R.drawable.minus2);
rl.addView(minus);
plus= new ImageView(getApplicationContext());
plus.setImageResource(R.drawable.plus2);
rl.addView(plus);
Display display = ((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
int w = display.getWidth();
int h = display.getHeight();
RelativeLayout.LayoutParams minusPosition = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams plusPosition = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
minusPosition.leftMargin = (int)(w*0.77);
minusPosition.topMargin = (int)(h*0.80); //0.66 si no es fullscreen
minus.setLayoutParams(minusPosition);
plusPosition.leftMargin = (int)(w*0.88);
plusPosition.topMargin = (int)(h*0.80);
plus.setLayoutParams(plusPosition);
mySurfaceView = new MySurfaceView(this);
setContentView(fl);
plus.setClickable(true); //esto es necesario para poder gestionar cuando el boton se presiona y se suelta
minus.setClickable(true); //esto es necesario para poder gestionar cuando el boton se presiona y se suelta
minus.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event)
{
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN: //boton presionado
zoomIn=false;
pressed=true;
break;
case MotionEvent.ACTION_UP: //boton se suelta
pressed=false;
break;
}
return false;
}
});
plus.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event)
{
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN: //boton presionado
zoomIn=true;
pressed=true;
break;
case MotionEvent.ACTION_UP: //boton se suelta
pressed=false;
break;
}
return false;
}
});
t1= new myThread();
t1.start();
fl.addView(mySurfaceView);
fl.addView(rl);
}
protected void onResume() {
super.onResume();
mySurfaceView.onResume();
}
protected void onPause() {
super.onPause();
mySurfaceView.onPause();
}
}
答案 0 :(得分:0)
我设法使用setZOrderMediaOverlay(boolean)方法使其工作。它会将您的GLSurface设置在相机表面的顶部。
http://developer.android.com/reference/android/view/SurfaceView.html#setZOrderMediaOverlay(boolean)