使用带有选项卡布局的自定义视图时，无法从选项卡中删除填充 [英] Cannot remove Padding from Tabs when using Custom views with Tab Layout
本文介绍了使用带有选项卡布局的自定义视图时，无法从选项卡中删除填充的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我在自定义视图中添加了一个相对布局，并在选项卡布局中添加了这个.我正在为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 在内部对选项卡应用填充一样.我正在尝试显示我能够执行的三个文本视图，但其中一个由于应用于选项卡的填充而被截断.此外，我希望标签的背景颜色一致.
I have added a Relative Layout in Custom View and have added this in Tab Layout. I am using a white background for tabs and have not applied any padding in tabs custom layout. But then also I am getting padding on tabs due to which I am shown some grey background within tabs as if android is internally applying padding to tabs. I am trying to display three text views which I am able to do but one of them is truncating because of padding applied to tabs. Also I want to have consistent background color for tabs.
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);
}
}
}
固定标签在白色背景周围有灰色背景:
Fixed Tab are having grey background arround white background:
推荐答案
<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.
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