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Merge branch 'BindingChanges' of https://github.com/slodge/MvvmCross …
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73 changes: 73 additions & 0 deletions
73
CrossUI/CrossUI.Droid/Dialog/Elements/SimplePickerElement.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| using System.Collections; | ||
| using System.Linq; | ||
| using Android.App; | ||
| using Android.Content; | ||
|
|
||
| namespace CrossUI.Droid.Dialog.Elements | ||
| { | ||
| public class SimplePickerElement : StringDisplayingValueElement<object> | ||
| { | ||
| public SimplePickerElement(string caption, object value = null, string layoutName = null) | ||
| : base(caption, value, layoutName ?? "dialog_multiline_labelfieldbelow") | ||
| { | ||
| Click = delegate { ShowDialog(); }; | ||
| } | ||
|
|
||
| IList _entries = new object[0]; | ||
| public IList Entries | ||
| { | ||
| get { return _entries; } | ||
| set { _entries = value; BindItemArray(); } | ||
| } | ||
|
|
||
| private void BindItemArray() | ||
| { | ||
| var arr = new object[Entries.Count]; | ||
| Entries.CopyTo(arr, 0); | ||
| _itemArray = arr.Select(x => Format(x)).ToArray(); | ||
| } | ||
|
|
||
| string[] _itemArray = new string[0]; | ||
|
|
||
| private int FindSelectedIndex() | ||
| { | ||
| var i = 0; | ||
| foreach (var x in Entries) | ||
| { | ||
| if (x == Value) | ||
| return i; | ||
| i++; | ||
| } | ||
| return -1; | ||
| } | ||
|
|
||
| private void ShowDialog() | ||
| { | ||
| var context = Context; | ||
| if (context == null) | ||
| { | ||
| Android.Util.Log.Warn("RadioDialogElement", "No Context for Edit"); | ||
| return; | ||
| } | ||
|
|
||
| new AlertDialog.Builder(context) | ||
| .SetTitle(base.Caption) | ||
| .SetSingleChoiceItems(_itemArray, FindSelectedIndex(), (o, e) => OnClick(o, e)) | ||
| .Create() | ||
| .Show(); | ||
| } | ||
|
|
||
| protected virtual void OnClick(object o, DialogClickEventArgs e) | ||
| { | ||
| OnUserValueChanged(Entries[e.Which]); | ||
| ((AlertDialog)o).Dismiss(); | ||
| } | ||
|
|
||
| protected override string Format(object value) | ||
| { | ||
| if (value == null) | ||
| return string.Empty; | ||
| return value.ToString(); | ||
| } | ||
| } | ||
| } |
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