Hello Guys,
I want to use a View with SurfaceView as a Tab in TabHost. I had written a
simple application and met a strange problem.
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 handle clicks.
This problem does not appear if the same happened when the tab with Surface
View is current. I did different to solve, but doesn't work. The code is
quite simple and i don't want any extraordinary, but still strange problem
is there.
May be someone can help us.
Thanks in advance.
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
}
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
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