protected override void OnElementChanged(ElementChangedEventArgs <TabbedPage> e) { base.OnElementChanged(e); if (e.NewElement == null || e.OldElement != null) { return; } TabLayout tablayout = (TabLayout)ViewGroup.GetChildAt(1); Android.Views.ViewGroup vgroup = (Android.Views.ViewGroup)tablayout.GetChildAt(0); for (int i = 0; i < vgroup.ChildCount; i++) { Android.Views.ViewGroup vvgroup = (Android.Views.ViewGroup)vgroup.GetChildAt(i); Typeface fontFace = Typeface.CreateFromAsset(this.Context.Assets, "IranSans.ttf"); for (int j = 0; j < vvgroup.ChildCount; j++) { Android.Views.View vView = (Android.Views.View)vvgroup.GetChildAt(j); if (vView.GetType() == typeof(Android.Support.V7.Widget.AppCompatTextView) || vView.GetType() == typeof(Android.Widget.TextView)) { //here change textview style TextView txtView = (TextView)vView; txtView.TextSize = 14f; txtView.SetTypeface(fontFace, TypefaceStyle.Normal); } } } }
internal static IEnumerable <T> GetChildrenOfType <T>(this AViewGroup self) where T : AView { for (int i = 0; i < self.ChildCount; i++) { AView?child = self.GetChildAt(i); if (child == null) { continue; } if (child is T typedChild) { yield return(typedChild); } if (child is AViewGroup childAsViewGroup) { IEnumerable <T> myChildren = childAsViewGroup.GetChildrenOfType <T>(); foreach (T nextChild in myChildren) { yield return(nextChild); } } } }
/// <summary> /// Traverses document tree to attach listeners to view items marked with "Number" or "Operation" tags. /// </summary> /// <param name="view"></param> private void AttachListeners(Android.Views.View view) { Android.Views.ViewGroup group = view as Android.Views.ViewGroup; if (group != null) { for (int i = 0; i < group.ChildCount; i++) { var child = group.GetChildAt(i); var childGroup = child as Android.Views.ViewGroup; if (childGroup != null) { AttachListeners(childGroup); } else { if (child.Tag != null) { string tag = child.Tag.ToString(); if (tag.CompareTo(Globals.CALC_NUMBER) == 0) { child.Click += Number_Click; } else if (tag.CompareTo(Globals.CALC_OPERATION) == 0) { child.Click += Operation_Click; } } } } } }
internal static IEnumerable <T> GetChildrenOfType <T>(this AViewGroup self) where T : AView { for (var i = 0; i < self.ChildCount; i++) { AView child = self.GetChildAt(i); var typedChild = child as T; if (typedChild != null) { yield return(typedChild); } if (child is AViewGroup) { IEnumerable <T> myChildren = (child as AViewGroup).GetChildrenOfType <T>(); foreach (T nextChild in myChildren) { yield return(nextChild); } } } }
internal static IEnumerable <T> GetChildrenOfType <T>(this AViewGroup self) where T : AView { for (var i = 0; i < self.ChildCount; i++) { var child = self.GetChildAt(i); if (child is T typedChild) { yield return(typedChild); } if (!(child is AViewGroup)) { continue; } var myChildren = (child as AViewGroup).GetChildrenOfType <T>(); foreach (var nextChild in myChildren) { yield return(nextChild); } } }
public static T?GetFirstChildOfType <T>(this AViewGroup viewGroup) where T : AView { for (var i = 0; i < viewGroup.ChildCount; i++) { AView?child = viewGroup.GetChildAt(i); if (child is T typedChild) { return(typedChild); } if (child is AViewGroup vg) { var descendant = vg.GetFirstChildOfType <T>(); if (descendant != null) { return(descendant); } } } return(null); }
public static IEnumerable <T> GetChildrenOfType <T>(this AViewGroup viewGroup) where T : AView { for (var i = 0; i < viewGroup.ChildCount; i++) { AView?child = viewGroup.GetChildAt(i); if (child is T typedChild) { yield return(typedChild); } if (child is AViewGroup) { IEnumerable <T>?myChildren = (child as AViewGroup)?.GetChildrenOfType <T>(); if (myChildren != null) { foreach (T nextChild in myChildren) { yield return(nextChild); } } } } }