Examples with ViewTreeObserver android.view.ViewTreeObserver used on opensource projects

Example 36 with ViewTreeObserver

use of android.view.ViewTreeObserver in project Libraries-for-Android-Developers by eoecn.

the class ActivityChooserView method dismissPopup.

/**
     * Dismisses the popup window with activities.
     *
     * @return True if dismissed, false if already dismissed.
     */
public boolean dismissPopup() {
    if (isShowingPopup()) {
        getListPopupWindow().dismiss();
        ViewTreeObserver viewTreeObserver = getViewTreeObserver();
        if (viewTreeObserver.isAlive()) {
            viewTreeObserver.removeGlobalOnLayoutListener(mOnGlobalLayoutListener);
        }
    }
    return true;
}

Example 37 with ViewTreeObserver

use of android.view.ViewTreeObserver in project Libraries-for-Android-Developers by eoecn.

the class ActivityChooserView method onDetachedFromWindow.

@Override
protected void onDetachedFromWindow() {
    super.onDetachedFromWindow();
    ActivityChooserModel dataModel = mAdapter.getDataModel();
    if (dataModel != null) {
        try {
            dataModel.unregisterObserver(mModelDataSetOberver);
        } catch (IllegalStateException e) {
        //Oh, well... fixes issue #557
        }
    }
    ViewTreeObserver viewTreeObserver = getViewTreeObserver();
    if (viewTreeObserver.isAlive()) {
        viewTreeObserver.removeGlobalOnLayoutListener(mOnGlobalLayoutListener);
    }
    mIsAttachedToWindow = false;
}

Example 38 with ViewTreeObserver

use of android.view.ViewTreeObserver in project zxingfragmentlib by mitoyarzun.

the class SampleStretchedActivity method onCreate.

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_stretched_sample);
    FragmentManager fm = getSupportFragmentManager();
    mScannerFragment = (BarCodeScannerFragment) fm.findFragmentById(R.id.scanner_fragment);
    layoutContent = (LinearLayout) findViewById(R.id.layout_content);
    final ViewTreeObserver observer = layoutContent.getViewTreeObserver();
    observer.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {

        @Override
        public void onGlobalLayout() {
            // We're assuming that the other layout is under the scanner
            int activityWidth = layoutContent.getWidth();
            int activityHeight = findViewById(R.id.scanner_fragment).getHeight();
            int usableWidth = layoutContent.getWidth();
            int usableHeight = activityHeight - layoutContent.getHeight();
            int desiredHeight = (int) (usableHeight * 0.8);
            int desiredWidth = (int) (usableWidth * 0.75);
            Rect framingRect = new Rect(// left
            (usableWidth - desiredWidth) / 2, // top
            (usableHeight - desiredHeight) / 2, // right
            (usableWidth - desiredWidth) / 2 + desiredWidth, // bottom
            (usableHeight - desiredHeight) / 2 + desiredHeight);
            Log.v("RECT", "left: " + framingRect.left + " top: " + framingRect.top + " right: " + framingRect.right + " bottom: " + framingRect.bottom + " activityHeight: " + activityHeight + " activitiWidth: " + activityWidth);
        //        mScannerFragment.setFramingRect(framingRect);
        }
    });
//    mToggleButton = (Button) findViewById(R.id.button_flash);
//    mToggleButton.setOnClickListener(createToggleFlashListener());
}

Example 39 with ViewTreeObserver

use of android.view.ViewTreeObserver in project AndroidTraining by mixi-inc.

the class ActivityChooserView method dismissPopup.

/**
     * Dismisses the popup window with activities.
     *
     * @return True if dismissed, false if already dismissed.
     */
public boolean dismissPopup() {
    if (isShowingPopup()) {
        getListPopupWindow().dismiss();
        ViewTreeObserver viewTreeObserver = getViewTreeObserver();
        if (viewTreeObserver.isAlive()) {
            viewTreeObserver.removeGlobalOnLayoutListener(mOnGlobalLayoutListener);
        }
    }
    return true;
}

Example 40 with ViewTreeObserver

use of android.view.ViewTreeObserver in project SmartAndroidSource by jaychou2012.

the class MenuPopupHelper method tryShow.

public boolean tryShow() {
    mPopup = new IcsListPopupWindow(mContext, null, android.R.attr.popupMenuStyle);
    mPopup.setOnDismissListener(this);
    mPopup.setOnItemClickListener(this);
    mAdapter = new MenuAdapter(mMenu);
    mPopup.setAdapter(mAdapter);
    mPopup.setModal(true);
    View anchor = mAnchorView;
    if (anchor != null) {
        // avoid VTO-related leaks.
        if (anchor.getWindowToken() != null) {
            ViewTreeObserver vto = anchor.getViewTreeObserver();
            if (vto != mTreeObserver) {
                if (mTreeObserver != null && mTreeObserver.isAlive()) {
                    mTreeObserver.removeGlobalOnLayoutListener(this);
                }
                if ((mTreeObserver = vto) != null) {
                    vto.addOnGlobalLayoutListener(this);
                }
            }
        } else if (anchor instanceof View_HasStateListenerSupport) {
            ((View_HasStateListenerSupport) anchor).addOnAttachStateChangeListener(this);
        }
        mPopup.setAnchorView(anchor);
    } else {
        return false;
    }
    mPopup.setContentWidth(Math.min(measureContentWidth(mAdapter), mPopupMaxWidth));
    mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED);
    mPopup.show();
    mPopup.getListView().setOnKeyListener(this);
    return true;
}