在选项卡布局中使用自定义视图时无法从选项卡中删除填充

问题描述 投票:0回答:11

我在自定义视图中添加了相对布局,并在选项卡布局中添加了它。我对选项卡使用白色背景,并且没有在选项卡自定义布局中应用任何填充。但随后我也在选项卡上进行了填充,因此我在选项卡中显示了一些灰色背景,就好像 android 在内部将填充应用到选项卡一样。我正在尝试显示三个我能够执行的文本视图,但其中一个由于应用于选项卡的填充而被截断。我还希望选项卡具有一致的背景颜色。

这是我的代码:

activity_home.xml:

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context="com.customtablayoutapplication.HomeActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay" />


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

    <include layout="@layout/content_home" />


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

fragment_home.xml:

<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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:theme="@style/AppTheme.AppBarOverlay"
    tools:context="com.customtablayoutapplication.HomeFragment"
    tools:showIn="@layout/activity_home">

    <android.support.design.widget.TabLayout
        android:id="@+id/tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabGravity="fill"
        app:tabMode="fixed" />

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

</LinearLayout>

custom_tab.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:background="@android:color/white"
    android:layout_height="match_parent"
    android:layout_gravity="center">

    <TextView
        android:id="@+id/total_request_count"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:text="12"
        android:textAllCaps="false"
        android:visibility="gone"
        android:textColor="@color/colorPrimaryDark"
        android:textSize="12sp" />


    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_centerVertical="true"
        android:fitsSystemWindows="true"
        android:gravity="center">

        <TextView
            android:id="@+id/request_status"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:text="New Request"
            android:textAllCaps="false"
            android:textColor="@color/colorPrimaryDark"
            android:textSize="12sp" />

        <TextView
            android:id="@+id/badge_icon"
            android:layout_width="13dp"
            android:layout_height="13dp"
            android:layout_alignParentRight="true"
            android:layout_alignTop="@id/request_status"
            android:layout_marginLeft="-3dp"
            android:layout_marginTop="15dp"
            android:background="@drawable/circular_text_background"
            android:clickable="false"
            android:visibility="gone" />
    </RelativeLayout>


</RelativeLayout>

HomeFragment.java:

package com.customtablayoutapplication;

import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RelativeLayout;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

/**
 * A placeholder fragment containing a simple view.
 */
public class HomeFragment extends Fragment {

    private ViewPager viewPager;
    private TabLayout tabLayout;

    public HomeFragment() {
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        
        View view = inflater.inflate(R.layout.fragment_home, container, false);
        viewPager = (ViewPager) view.findViewById(R.id.viewpager);
        setupViewPager(viewPager);

        tabLayout = (TabLayout) view.findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(viewPager);
        setUpTabIcons();
        return view;
    }

    private void setUpTabIcons() {
        RelativeLayout tabNewRequest= (RelativeLayout) LayoutInflater.from(getActivity()).inflate(R.layout.custom_tab, null);
        TextView tabNewRequesttxt = (TextView) tabNewRequest.findViewById(R.id.request_status);
        tabNewRequesttxt.setText("New Request");
        tabLayout.getTabAt(0).setCustomView(tabNewRequest);

        RelativeLayout tabInProgress= (RelativeLayout) LayoutInflater.from(getActivity()).inflate(R.layout.custom_tab, null);
        TextView tabInProgresstxt = (TextView) tabInProgress.findViewById(R.id.request_status);
        tabInProgresstxt.setText("In Progress");
        tabLayout.getTabAt(1).setCustomView(tabInProgress);

        RelativeLayout tabWorkDone= (RelativeLayout) LayoutInflater.from(getActivity()).inflate(R.layout.custom_tab, null);
        TextView tabWorkDonetxt = (TextView) tabWorkDone.findViewById(R.id.request_status);
        tabWorkDonetxt.setText("Work Done");
        tabLayout.getTabAt(2).setCustomView(tabWorkDone);

        RelativeLayout tabDelivered= (RelativeLayout) LayoutInflater.from(getActivity()).inflate(R.layout.custom_tab, null);
        TextView tabDeliveredtxt = (TextView) tabDelivered.findViewById(R.id.request_status);
        tabDeliveredtxt.setText("Delivered");
        tabLayout.getTabAt(3).setCustomView(tabDelivered);
    }

    private void setupViewPager(ViewPager viewPager) {
        ViewPagerAdapter adapter = new ViewPagerAdapter(getChildFragmentManager());
        adapter.addFragment(new NewRequestFragment(), "New Request");
        adapter.addFragment(new InProgressFragment(), "In Progress");
        adapter.addFragment(new WorkDoneFragment(), "Work Done");
        adapter.addFragment(new DeliveredFragment(), "Delivered");
        viewPager.setAdapter(adapter);
    }

    class ViewPagerAdapter extends FragmentPagerAdapter {
        private final List<Fragment> mFragmentList = new ArrayList<>();
        private final List<String> mFragmentTitleList = new ArrayList<>();

        public ViewPagerAdapter(FragmentManager manager) {
            super(manager);
        }

        @Override
        public Fragment getItem(int position) {
            return mFragmentList.get(position);
        }

        @Override
        public int getCount() {
            return mFragmentList.size();
        }

        public void addFragment(Fragment fragment, String title) {
            mFragmentList.add(fragment);
            mFragmentTitleList.add(title);
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return mFragmentTitleList.get(position);
        }
    }
}

固定选项卡的白色背景周围有灰色背景:

screenshot

customization android-custom-view android-tablayout
11个回答
68
投票
 <android.support.design.widget.TabLayout
     android:id="@+id/tab_layout"
     android:layout_width="210dp"
     android:layout_height="28dp"
     android:layout_centerInParent="true"
     android:background="@drawable/bg_forum_tab"
     app:tabIndicatorColor="@color/colorBtnBg"
     app:tabIndicatorHeight="0dp"
     app:tabPaddingBottom="-1dp"
     app:tabPaddingEnd="-1dp"
     app:tabPaddingStart="-1dp"
     app:tabPaddingTop="-1dp"
     app:tabSelectedTextColor="@color/colorBtnBg"
     app:tabTextColor="@color/colorWhite" />

像这样设置

tabPaddingStart
/
tabPaddingEnd
/
tabPaddingTop
/
tabPaddingBottom


47
投票

它对我有用:

在您的

TabLayout
中,您必须将
tabPaddingEnd
tabPaddingStart
设置为
0dp

在自定义视图中,您必须将

layout_width
layout_height
设置为
match_parent
,以便用您的自定义颜色填充所有空间。

选项卡布局:

<android.support.design.widget.TabLayout
    android:id="@+id/tl_dashboard"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:layout_alignParentBottom="true"
    app:tabGravity="fill"
    app:tabIndicatorColor="@color/colorRed"
    app:tabMode="fixed"
    app:tabPaddingStart="0dp"
    app:tabPaddingEnd="0dp"/>

和自定义视图:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
     <!--Your widgets-->        
</RelativeLayout>

16
投票

通过 XML,您可以仅删除左右填充,如下所示:

app:tabPaddingEnd="0dp"
app:tabPaddingStart="0dp"

注意,这种方式不适用于顶部和底部填充,但我找到了下一个解决方案:

当您使用自定义视图作为选项卡项时,您需要为视图设置 LayoutParams 并设置 paddings 0

for (int i = 0; i < tabLayout.getTabCount(); i++) {           
    View tabView = LayoutInflater.from(context)
            .inflate(LayoutInflater.from(this), R.layout.item_main_tabview, null, false);

    tabView.setLayoutParams(new TableLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
    tabView.setPadding(0, 0, 0, 0);
    tabLayout.getTabAt(i).setCustomView(tabViewBinding.getRoot());
}

5
投票

我知道这是一个老问题,但这可以帮助其他人。填充开始和填充结束不会删除选项卡之间的空间。解决方案是:

android:clipToPadding =“true”

<android.support.design.widget.TabLayout
    android:id="@+id/tab_layout"
    android:layout_width="match_parent"
    android:layout_height="80dp"
    android:background="@color/colorGrayBackground"
    app:tabGravity="fill"
    app:tabPaddingStart="0dp"
    app:tabPaddingEnd="0dp"
    app:tabContentStart="0dp"
    app:tabIndicatorHeight="0dp"
    android:clipToPadding="true"
    app:tabMode="fixed" />

然后您可以将填充设置为“0dp”。希望它对某人有帮助。


4
投票

在向选项卡布局添加新选项卡时,我通过将自定义视图的父级的边距和填充设置为零来解决此问题。

LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
lp.setMargins(0,0,0,0);
    
TabLayout.Tab newTab = mTabsBottom.newTab().setCustomView(R.layout.view_custom_tab);
setupTabParentLayout(newTab.getCustomView(), lp);
..
..
..
private void setupTabParentLayout(View customView, LinearLayout.LayoutParams lp) {
    LinearLayout tabParent = (LinearLayout) customView.getParent();
    tabParent.setLayoutParams(lp);
    tabParent.setPadding(0,0,0,0);
}

这里的技巧是使用 LinearLayout.LayoutParams 作为自定义视图的父级。


4
投票

首先我尝试使用

app:tabMinWidth="0dp"

然后我尝试了dcanbatman的答案。

它开始仅适用于这两种解决方案:

app:tabPaddingStart="0dp"
app:tabPaddingEnd="0dp"
app:tabMinWidth="0dp"

1
投票

如果您尝试了很多方法但都不起作用,这就是我最终所做的:只需设置

android:layout_height =“20dp”

<FrameLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <androidx.viewpager.widget.ViewPager
        android:layout_width="match_parent"
        android:layout_gravity="bottom"
        android:layout_height="130dp"/>

    <com.google.android.material.tabs.TabLayout
        android:layout_height="20dp"
        android:layout_width="match_parent"
        android:layout_gravity="bottom"
        app:tabBackground="@drawable/tab_selector"
        app:tabGravity="center"
        app:tabIndicatorHeight="0dp"/>

</FrameLayout>

1
投票

我从代码创建 TabLayout 并且我只提供帮助

for (int position = 0; position < mTabLayout.getTabCount(); position++) {
    TabLayout.Tab tab = mTabLayout.getTabAt(position);
    if (tab != null) {
        ViewCompat.setPaddingRelative(tab.view, 0, 0, 0, 0); 
    }
}

0
投票
<android.support.design.widget.TabLayout
    android:id="@+id/tabview"
    app:layout_constraintTop_toBottomOf="@+id/ivpromo"
    android:layout_width="0dp"
    app:tabMode="scrollable"
    app:tabIndicatorHeight="0dp"
    app:tabContentStart="0dp"
    android:clipToPadding="true"
    app:tabMaxWidth="45dp"
    app:tabGravity="fill"
    app:tabPaddingStart="0dp"
    app:tabPaddingEnd="0dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:tabIndicatorColor="@android:color/transparent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintLeft_toRightOf="@+id/tvcode"
    android:layout_height="40dp"/>

0
投票

当我对 TabLayout 的项目使用自定义布局时,我使用:

  app:tabGravity="fill"
  app:tabIndicatorHeight="0dp"
  app:tabMode="fixed"
  app:tabPaddingEnd="0dp"
  app:tabPaddingStart="0dp"
  app:tabRippleColor="@null"

但是在这里,下面的代码应该可以完成工作:

  app:tabPaddingEnd="0dp"
  app:tabPaddingStart="0dp"

0
投票

应用程序:tabPadding =“-10dp”

对我有用。 (-2、-5 不改变任何内容>

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