Question

我在viewpager中有多个片段的应用程序。这些片段都显示EditText，其中大多数都具有inputtype numberDecimal，其中三个没有指定inputtype。在此viewpager之外，还有另一个edittext用作搜索框。

我在EditText的触摸事件中做了一些手动聚焦，以在viewpager中获得正确的EditText焦点。（因为类似于此处描述的问题：ViewPager focus issue）

当我在ViewPager中选择第一个EditText时，右键盘类型显示（nummeric）。现在，当我选择下一个EditText时，默认键盘会在指定inpytType numberDecimal时显示。当我在viewPager之外删除（搜索）EditText并重复上述场景时，第二个EditText会获得正确的键盘类型。对我来说，几乎看起来搜索EditText正在以某种方式从我在片段中的EditText中窃取焦点，这些内容位于viewpager中。

如何阻止它这样做？

我已经给了它的父母android：focusableInTouchMode =＆＃34; true＆＃34;属性。

我的主要活动

[Activity(Label = "viewpagertest", MainLauncher = true, Icon = "@drawable/icon")]
public class MainActivity : FragmentActivity
{
    private CustomViewPager _viewPager;
    private CustomViewPagerAdapter _adapter;

    protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);
        SetContentView(Resource.Layout.Main);

        _viewPager = FindViewById<CustomViewPager>(Resource.Id.viewPager);
        _adapter = new CustomViewPagerAdapter(SupportFragmentManager);
        _viewPager.Adapter = _adapter;
        _viewPager.PageSelected += _viewPager_PageSelected;

    }

    void _viewPager_PageSelected(object sender, Android.Support.V4.View.ViewPager.PageSelectedEventArgs e)
    {
        _viewPager.UnfocusFocusedView();
    }

    public void EditTextFieldClicked(View parentView, EditText editText)
    {
        _viewPager.RequestManualChildFocus(parentView, editText);
    }

    private class CustomViewPagerAdapter : FragmentPagerAdapter
    {
        private readonly List<Fragment> _fragments;

        private int FragmentsPerPage { get { return 5; } }
        public CustomViewPagerAdapter(FragmentManager fm)
            : base(fm)
        {
            _fragments = new List<Fragment>();
            for (int i = 0; i < 20; i++)
            {
                if (i == 3 || i == 9 || i == 15)
                {
                    _fragments.Add(new FragmentTestString());
                }
                else
                {
                    _fragments.Add(new FragmentTest());
                }
            }
        }

        public override Fragment GetItem(int position)
        {
            return _fragments[position];
        }

        public override int GetItemPosition(Java.Lang.Object @object)
        {
            return PositionNone;
        }

        public override int Count
        {
            get { return 20; }
        }

        public override float GetPageWidth(int position)
        {
            return 1.0f / FragmentsPerPage;
        }
    }
}

我的MainActivity xml文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:focusableInTouchMode="true"
android:layout_height="fill_parent">
<EditText
    android:id="@+id/etxtSearch"
    android:hint="Search"
    android:imeOptions="actionDone"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />
<viewpagertest.CustomViewPager
    android:id="@+id/viewPager"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

我的自定义viewpager可以手动对焦

class CustomViewPager : ViewPager
{
    private View _prevFocusedView;
    protected CustomViewPager(IntPtr javaReference, JniHandleOwnership transfer)
        : base(javaReference, transfer)
    {
    }

    public CustomViewPager(Context context)
        : base(context)
    {
    }

    public CustomViewPager(Context context, IAttributeSet attrs)
        : base(context, attrs)
    {
    }

    public override void RequestChildFocus(View child, View focused)
    {
        //Do nothing, disables automatic focus behaviour
    }

    public void RequestManualChildFocus(View child, View focused)
    {
        if (_prevFocusedView != focused)
        {
            if (_prevFocusedView != null)
            {
                _prevFocusedView.ClearFocus();
            }

            base.RequestChildFocus(child, focused);

            _prevFocusedView = focused;
        }
    }

    public void UnfocusFocusedView()
    {
        var etxt = _prevFocusedView as EditText;
        if (etxt != null)
        {
            var imm =
                (InputMethodManager)Context.GetSystemService(Android.Content.Context.InputMethodService);
            imm.HideSoftInputFromWindow(etxt.WindowToken, 0);
        }

        if (_prevFocusedView != null)
        {
            _prevFocusedView.ClearFocus();
        }
        _prevFocusedView = null;
    }
}

我的片段

 public class FragmentTest : Fragment
{
    public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        var view = inflater.Inflate(Resource.Layout.fragment, container, false);
        var editText = view.FindViewById<EditText>(Resource.Id.etxtInput);
        editText.Touch += editText_Touch;
        return view;
    }

    void editText_Touch(object sender, View.TouchEventArgs e)
    {
        var etxtView = sender as EditText;
        if (etxtView != null)
        {
            var activity = Activity as MainActivity;
            if (activity != null)
            {
                activity.EditTextFieldClicked(this.View, sender as EditText);
            }
            etxtView.OnTouchEvent(e.Event);
        }
    }
}

片段xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:focusableInTouchMode="true"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<EditText
    android:id="@+id/etxtInput"
    android:inputType="numberDecimal|numberSigned"
    android:imeOptions="actionDone|flagNoExtractUi"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

Android edittext在viewpager中获取错误的键盘类型

0 个答案: