不允许用户点击选项卡

Question

之一，我在我的屏幕7个日期标签。但是，如果日期落在另一个月，我不允许用户点击该标签。我想让它们可见但不可点击。

这是我的代码部分：

public void setupViewPager(ViewPager viewPager, ArrayList<String> id, ArrayList<String> tasks, 
          ArrayList<Double> mondayHours, ArrayList<Double> tuesdayHours, 
          ArrayList<Double> wednesdayHours, ArrayList<Double> thursdayHours, 
          ArrayList<Double> fridayHours, ArrayList<Double> saturdayHours, 
          ArrayList<Double> sundayHours) { 
    Bundle bundle = new Bundle(); 
    bundle.putStringArrayList(EXTRA_CHECKED_TASK_ID, id); 
    bundle.putStringArrayList(EXTRA_CHECKED_TASKS, tasks); 
    bundle.putSerializable(EXTRA_MONDAY, mondayHours); 
    bundle.putSerializable(EXTRA_TUESDAY, tuesdayHours); 
    bundle.putSerializable(EXTRA_WEDNESDAY, wednesdayHours); 
    bundle.putSerializable(EXTRA_THURSDAY, thursdayHours); 
    bundle.putSerializable(EXTRA_FRIDAY, fridayHours); 
    bundle.putSerializable(EXTRA_SATURDAY, saturdayHours); 
    bundle.putSerializable(EXTRA_SUNDAY, sundayHours); 

    final String MON = "MON" + "\n" + MainActivity.sevenDatesList.get(0); 
    final String TUE = "TUE" + "\n" + MainActivity.sevenDatesList.get(1); 
    final String WED = "WED" + "\n" + MainActivity.sevenDatesList.get(2); 
    final String THU = "THU" + "\n" + MainActivity.sevenDatesList.get(3); 
    final String FRI = "FRI" + "\n" + MainActivity.sevenDatesList.get(4); 
    final String SAT = "SAT" + "\n" + MainActivity.sevenDatesList.get(5); 
    final String SUN = "SUN" + "\n" + MainActivity.sevenDatesList.get(6); 

    adapter = new ViewPagerAdapter(getSupportFragmentManager(), bundle); 
    adapter.addFragment(new MondayFragment(), MON); 
    adapter.addFragment(new TuesdayFragment(), TUE); 
    adapter.addFragment(new WednesdayFragment(), WED); 
    adapter.addFragment(new ThursdayFragment(), THU); 
    adapter.addFragment(new FridayFragment(), FRI); 
    adapter.addFragment(new SaturdayFragment(), SAT); 
    adapter.addFragment(new SundayFragment(), SUN); 

    viewPager.setAdapter(adapter); 
} 

这是我的XML代码：

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:orientation="vertical" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context="com.ada.foresight.TimesheetActivity"> 

    <RelativeLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_weight="1" 
     android:paddingTop="8dp" 
     android:paddingBottom="8dp" 
     android:paddingLeft="@dimen/activity_horizontal_margin" 
     android:paddingRight="@dimen/activity_horizontal_margin"> 

     <TextView 
      android:id="@+id/lblWeekMsg" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="@string/week" 
      android:textAppearance="?attr/textAppearanceListItem" /> 
     <TextView 
      android:id="@+id/lblWeekNo" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_toEndOf="@id/lblWeekMsg" 
      android:layout_alignBaseline="@id/lblWeekMsg" 
      android:text="" 
      android:textAppearance="?attr/textAppearanceListItem" /> 

    </RelativeLayout> 
    <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" 
     xmlns:app="http://schemas.android.com/apk/res-auto" 
     android:id="@+id/coordinator_layout" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_weight="30"> 

     <android.support.design.widget.AppBarLayout 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" > 

      <android.support.design.widget.TabLayout 
       android:id="@+id/tab_layout" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       app:tabTextColor="@android:color/white" 
       app:tabMode="scrollable" 
       app:tabGravity="fill" /> 

     </android.support.design.widget.AppBarLayout> 

     <android.support.v4.view.ViewPager 
      android:id="@+id/view_pager" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      app:layout_behavior="@string/appbar_scrolling_view_behavior" /> 

    </android.support.design.widget.CoordinatorLayout> 
    <RelativeLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_weight="1" 
     android:paddingBottom="@dimen/activity_vertical_margin" 
     android:paddingLeft="@dimen/activity_horizontal_margin" 
     android:paddingRight="@dimen/activity_horizontal_margin"> 

    </RelativeLayout> 
</LinearLayout> 

我类似的问题研究，但我们用不同的方法来创建标签有些我不明白。 Research 1

Answer 1

这是我做的时候，以启用或禁用选项卡或自定义选项卡。

//get tab view 
ViewGroup vg = (ViewGroup) tab_event.getChildAt(0); 
//get number of tab 
int tabsCount = vg.getChildCount(); 
//loop the tab 
for (int j = 0; j < tabsCount; j++) { 
    //get view of selected tab 
    ViewGroup vgTab = (ViewGroup) vg.getChildAt(j); 

    if(j==DESIRED_POSITION){ 
     //disable the selected tab 
     vgTab.setEnable(false); 
    }  
} 

，如果你有viewpager连接，你需要禁用viewpager轻扫。如果不是，您仍然可以滑动到禁用选项卡。

Answer 2

你可以扩展TabLayout类并覆盖

void selectTab(final Tab tab, boolean updateIndicator) 

方法，像这样：

@Override 
void selectTab(final Tab tab, boolean updateIndicator){ 
    if (tab.getPosition() == <selectable_position>){ 
     super.selectTab(tab, updateIndicator) 
    } 
} 

但是，你应该知道，这个逻辑也将禁止通过ViewPager滑动到标签。

有关更多详细信息，请参见source。