使用C# + Xamarin开发Android应用-- 动态添加控件
public class MyOrders : Activity { private DynamicControl _dynaControl; public MyOrders() { _dynaControl = new DynamicControl(); } protected override void OnCreate(Bundle bundle) { base.OnCreate(bundle); try { SetContentView(Resource.Layout.MyOrders); var layout = (TableLayout)FindViewById(Resource.Id.myorders_layout); var header = AddHeader(); layout.AddView(header); layout.AddView(AddPendingServiceItem("Service 1")); layout.AddView(AddPendingServiceItem("Service 2")); layout.AddView(AddPendingServiceItem("Service 3")); layout.AddView(AddConfirmedServiceItem("Service 4")); layout.AddView(AddConfirmedServiceItem("Service 5")); layout.AddView(AddConfirmedServiceItem("Service 6")); layout.AddView(AddConfirmedServiceItem("Service 7")); } catch (Exception ex) { this.ShowAlert(ex.Message); } } public View AddHeader() { var header = new TableRow(this); header.LayoutParameters = new TableLayout.LayoutParams(TableLayout.LayoutParams.FillParent, TableLayout.LayoutParams.WrapContent); header.AddView(_dynaControl.NewText(this, "Service")); header.AddView(_dynaControl.NewText(this, "Status")); header.AddView(_dynaControl.NewText(this, "Created At")); header.AddView(_dynaControl.NewText(this, "Action")); return header; } public View AddPendingServiceItem(string serviceName) { var tableRow = new TableRow(this); tableRow.LayoutParameters = new TableLayout.LayoutParams(TableLayout.LayoutParams.FillParent, TableLayout.LayoutParams.WrapContent); tableRow.AddView(_dynaControl.NewText(this, string.Format("{0} ", serviceName))); tableRow.AddView(_dynaControl.NewText(this, string.Format("{0} ", "Pending"), Color.OrangeRed)); tableRow.AddView(_dynaControl.NewText(this, string.Format("{0} ", "2015-5-19 \r\n14:20:33"))); tableRow.AddView(_dynaControl.AddButton(this, "Details")); return tableRow; } public View AddConfirmedServiceItem(string serviceName) { var tableRow = new TableRow(this); tableRow.AddView(_dynaControl.NewText(this, string.Format("{0} ", serviceName))); tableRow.AddView(_dynaControl.NewText(this, string.Format("{0} ", "Confirmed"), Color.DarkGreen)); tableRow.AddView(_dynaControl.NewText(this, string.Format("{0}", "2015-5-19 \r\n 14:30:43"))); tableRow.AddView(_dynaControl.AddButton(this, "Rebook")); tableRow.LayoutParameters = new TableLayout.LayoutParams(TableLayout.LayoutParams.FillParent, TableLayout.LayoutParams.WrapContent); return tableRow; } }
辅助类:
public class DynamicControl { public Button AddButton(Context context, string text, EventHandler clickAction = null) { var btn = new Button(context); btn.SetText(text, TextView.BufferType.Normal); if (clickAction != null) { btn.Click += clickAction; } return btn; } public TextView NewText(Context context, string str, Color? color = null) { var text = new TextView(context); if (color.HasValue) { text.SetTextColor(color.Value); } text.SetText(str, TextView.BufferType.Normal); return text; } }
郑重声明:本站内容如果来自互联网及其他传播媒体,其版权均属原媒体及文章作者所有。转载目的在于传递更多信息及用于网络分享,并不代表本站赞同其观点和对其真实性负责,也不构成任何其他建议。