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Lines Matching refs:vto

889             ViewTreeObserver vto = getViewTreeObserver();
890             if (vto != null) {
897                         final ViewTreeObserver vto = getViewTreeObserver();
898                         if (vto != null) {
899                             vto.removeOnGlobalLayoutListener(this);
903                 vto.addOnGlobalLayoutListener(listener);
1270             final ViewTreeObserver vto = getViewTreeObserver();
1271             if (vto != null) {
1286                 vto.addOnGlobalLayoutListener(layoutListener);
1289                         final ViewTreeObserver vto = getViewTreeObserver();
1290                         if (vto != null) {
1291                             vto.removeOnGlobalLayoutListener(layoutListener);