Hello Guys,
I want to use a View with SurfaceView as a Tab in TabHost. I had
written a simple application, and mat a strange problem there.
We have TabHost with 2 views: first one is a FrameLayout which
contains SurfaceView, second one is a fake view - any View.
The problem is in following: We select second tab, and then it doesn't
matter how we receive a sequences onPause() -> on Resume (e.g.
incoming call, or we just pressed home button and the returned back).
First of all the Resuming time is quite long. And then, if we press
menu button to show context menu, this menu is shown as transparent,
but it still handles clicks.
This problem does not appear if the same happened when the tab with
Surface View is current. I did different to solve this, but it doesn't
help. This behavior is strange, because i don't want any extraordinary
thing there just using a SurfaceView in TabHost.
public class MainActivity extends Activity implements
OnTabChangeListener, SurfaceHolder.Callback {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mVRView = new VRView(this);
mVRView.init(PreviewState.FULL_SCREEN, VRVPosition.CENTER,
new OnClickListener() {
@Override
public void onClick(View v) {
//do something
}
} , this);
//mVideoSurface = new VideoSurface(this,
PreviewState.FULL_SCREEN);
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
mTabHost.setup();
mTabHost.getTabWidget().setVisibility(View.VISIBLE);
mTabHost.addTab(mTabHost.newTabSpec("VRView").setIndicator("VRView").setContent(
new TabContentFactory() {
public View createTabContent(String arg0) {
return mVRView;
}
}));
mTabHost.addTab(mTabHost.newTabSpec("Map").setIndicator("Map").setContent(
new TabContentFactory() {
public View createTabContent(String arg0) {
return new
View(MainActivity.this.getApplicationContext());
}
}));
}
...
//callbacks do nothing
}
VRView
public class VRView extends FrameLayout {
private static final String TAG = "VRView";
public enum VRVPosition {
CENTER {int gravity() {return Gravity.CENTER |
Gravity.CENTER;}},
...
abstract int gravity();
}
public enum PreviewState { NONE, TIMING, FULL_SCREEN }
private TextView mText;
private VideoSurface mSurface;
private VRVPosition mPosition;
...
// Constructors
// this method should be called before view usage
public void init(PreviewState state, VRVPosition position,
OnClickListener clickListener,
SurfaceHolder.Callback mSurfaceListener) {
mPosition = position;
// prepare surface
mSurface = new VideoSurface(getContext(), state);
mSurface.getHolder().addCallback(mSurfaceListener);
LayoutParams parameters = new LayoutParams(1,1);
parameters.gravity = mPosition.gravity();
addView(mSurface, parameters);
// prepare button
mText = new TextView(getContext());
mText.setTextSize(20);
//mText.setBackgroundResource(R.drawable.preview_text_bgr);
mText.setText("Recording");
mText.setTextColor(getResources().getColor(android.R.color.black));
setOnClickListener(clickListener);
parameters = new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
parameters.gravity = mPosition.gravity();
addView(mText, parameters);
}
}
And VideoSurface just extends SurfaceView.
Could you help me to understand what is wrong there.
Thanks in advance,
Maria
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