我有一个Android应用程序有一个HorizontalScrollView嵌入两个RecyclerViews。顶部RecyclerView有类别,当您选择一个类别时,底部的RecyclerView会列出该类别中的项目。为了检测选定的类别,我尝试使用Touch事件。当EditText获取触摸事件时,该行被选中。这部分工作很好。问题是我还需要能够编辑类别列表中的某些字段。如果我在EditText上绑定Touch事件,则EditText在您点击它时不会获得焦点。我尝试使用FocusChanged事件,但有时在水平滚动时,顶部RecyclerView的焦点被设置为第一个类别的EditText,从而导致所选类别发生更改。有没有办法在MvvmCross中绑定Touch事件并仍然让它导致绑定控件获得焦点?MvvmCross绑定触摸事件防止重点MvxItemTemplate
这是我的项目模板的布局:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:local="http://schemas.android.com/apk/res-auto"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="2dp"
android:paddingBottom="2dp"
local:MvxBind="This View">
<TextView
android:layout_width="300dp"
android:layout_height="wrap_content"
style="@style/TableEditText"
local:MvxBind="Text Name; LongClick Name_LongClick; Touch Touch"
android:id="@+id/txtName" />
<EditText
android:layout_width="110dp"
android:layout_height="wrap_content"
style="@style/TableEditText"
android:inputType="numberDecimal|numberSigned"
android:selectAllOnFocus="true"
local:MvxBind="Text Cubes, Converter=FloatToStringConverter; Touch Touch"
android:id="@+id/txtCubes" />
<EditText
android:layout_width="110dp"
android:layout_height="wrap_content"
style="@style/TableEditText"
android:inputType="numberDecimal|numberSigned"
android:selectAllOnFocus="true"
local:MvxBind="Text Weight, Converter=IntToStringConverter; Touch Touch"
android:id="@+id/txtWeight" />
<EditText
android:layout_width="500dp"
android:layout_height="wrap_content"
style="@style/TableEditText"
android:inputType="textCapSentences"
local:MvxBind="Text Note; Touch Touch"
android:id="@+id/txtNote" />
<ImageButton
android:src="@drawable/ic_action_delete"
android:scaleType="fitCenter"
android:padding="3dp"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_gravity="center"
local:MvxBind="Click DeleteClicked"
android:id="@+id/btnDeleteCategory" />
</LinearLayout>
这是我的触摸事件挂钩:
public MvxCommand Touch
{
get
{
return new MvxCommand(() =>
{
SurveyView act = (Mvx.Resolve<IMvxAndroidCurrentTopActivity>().Activity as SurveyView) ?? null;
if (act != null)
{
act.SetCurrCategory(this);
}
});
}
}
这是我定制的触摸事件绑定:
public class MvxViewTouchBinding
: MvxAndroidTargetBinding
{
private readonly View _view;
private IMvxCommand _command;
public MvxViewTouchBinding(View view) : base(view)
{
_view = view;
_view.Touch += ViewOnTouch;
}
private void ViewOnTouch(object sender, View.TouchEventArgs eventArgs)
{
if (_command != null)
{
_command.Execute();
}
}
public override void SetValue(object value)
{
_command = (IMvxCommand)value;
}
protected override void Dispose(bool isDisposing)
{
if (isDisposing)
{
_view.Touch -= ViewOnTouch;
}
base.Dispose(isDisposing);
}
protected override void SetValueImpl(object target, object value)
{
}
public override Type TargetType
{
get { return typeof(IMvxCommand); }
}
public override MvxBindingMode DefaultMode
{
get { return MvxBindingMode.OneWay; }
}
}
这是在Setup.cs中
registry.RegisterCustomBindingFactory<View>("Touch",
view => new MvxViewTouchBinding(view));
试试这个 - https://stackoverflow.com/a/36360795/2754727 – pnavk
尝试设置'eventArgs.Handled = false;' – Cheesebaron
@Cheesebaron这样做了!感谢奶酪! –