Question

在此链接中：How do I apply a style programmatically?

凯文·格兰特对这个问题进行了解释，我的问题是他的代码是上下文部分。确切地说：

ctv = new CustomView(context, R.attr.tabStyleAttr);

在这段代码中它说：上下文无法解析为变量

我想将特定样式应用于标签，这就是为什么设置主题对我不起作用的原因。我当然也欢迎任何替代我的问题。

我尝试更改操作栏标签的背景颜色，指示灯颜色和文字颜色。

@Override
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) 
{
    CustomView ctv;
    ctv = new CustomView(this, R.attr.tabStyleAttr);        
    tab.setCustomView(ctv);  
    mViewPager.setCurrentItem(tab.getPosition());
}

styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="Theme.Ab" parent="@android:style/Theme.Holo.Light">
        <item name="android:actionBarStyle">@style/abStyle</item> 
        <item name="@attr/actionBarTabStyle">@style/tabStyle</item>        
        <item name="android:actionBarTabTextStyle">@style/tabTextColor</item>
    </style>   

    <style name="abStyle" parent="@android:style/Widget.Holo.Light.ActionBar.Solid">
        <item name="android:background">@drawable/ab_solid_style</item>
        <item name="android:backgroundStacked">@drawable/ab_stacked_solid_style</item>
        <item name="android:backgroundSplit">@drawable/ab_bottom_solid_style</item>
        <item name="android:height">100dp</item>
    </style>    

    <style name="tabStyle" parent="@android:style/Widget.Holo.Light.ActionBar.TabView">

        <item name="android:background">@drawable/tab_indicator_ab_style</item>
    </style>

    <style name="tabTextColor" parent="@android:style/Widget.Holo.Light.ActionBar.TabText">
        <item name="android:textColor">@android:color/white</item>
    </style>



</resources>

MainActivity.java（onCreate）

public void onCreate(Bundle savedInstanceState)
    {       
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Create the adapter that will return a fragment for each of the three primary sections
        // of the app.
        mAppSectionsPagerAdapter = new AppSectionsPagerAdapter(getSupportFragmentManager());

        // Set up the action bar.
        final ActionBar actionBar = getActionBar();
        //set custom actionbar
        actionBar.setCustomView(R.layout.titlebar);
        //Displays the custom design in the actionbar
        actionBar.setDisplayShowCustomEnabled(true);
        //Turns the homeIcon a View     
        View homeIcon = findViewById(android.R.id.home);
        //Hides the View (and so the icon)
        ((View)homeIcon.getParent()).setVisibility(View.GONE);

        // Specify that we will be displaying tabs in the action bar.
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

        // Set up the ViewPager, attaching the adapter and setting up a listener for when the
        // user swipes between sections.
        mViewPager = (ViewPager) findViewById(R.id.pager);
        mViewPager.setAdapter(mAppSectionsPagerAdapter);

        mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener()
        {           
            @Override
            public void onPageSelected(int position)
            {
                    // When swiping between different app sections, select the corresponding tab.
                    // We can also use ActionBar.Tab#select() to do this if we have a reference to the Tab.
                    actionBar.setSelectedNavigationItem(position);
            }
        });

        // For each of the sections in the app, add a tab to the action bar.
        for (int i = 0; i < mAppSectionsPagerAdapter.getCount(); i++)
        {

            // Create a tab with text corresponding to the page title defined by the adapter.
            // Also specify this Activity object, which implements the TabListener interface, as the
            // listener for when this tab is selected.
            Tab tab = actionBar.newTab().setText(mAppSectionsPagerAdapter.getPageTitle(i)).setTabListener(this);            
            actionBar.addTab(tab);
        }
    }

这就是我想要的：

Example

至于使用Views的新结果，这件事发生了

Using views

MainActivity.java

package com.example.android.effectivenavigation;

import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.FragmentTransaction;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
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.TextView;

public class MainActivity extends FragmentActivity implements ActionBar.TabListener
{
    AppSectionsPagerAdapter mAppSectionsPagerAdapter;
    //The viewpager displays on of the section at a time
    ViewPager mViewPager;

    public void onCreate(Bundle savedInstanceState)
    {       
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Create the adapter that will return a fragment for each of the three primary sections
        // of the app.
        mAppSectionsPagerAdapter = new AppSectionsPagerAdapter(getSupportFragmentManager());

        // Set up the action bar.
        final ActionBar actionBar = getActionBar();
        //set custom actionbar
        actionBar.setCustomView(R.layout.titlebar);
        //Displays the custom design in the actionbar
        actionBar.setDisplayShowCustomEnabled(true);
        //Turns the homeIcon a View     
        View homeIcon = findViewById(android.R.id.home);
        //Hides the View (and so the icon)
        ((View)homeIcon.getParent()).setVisibility(View.GONE);


        // Specify that we will be displaying tabs in the action bar.
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

        // Set up the ViewPager, attaching the adapter and setting up a listener for when the
        // user swipes between sections.
        mViewPager = (ViewPager) findViewById(R.id.pager);
        mViewPager.setAdapter(mAppSectionsPagerAdapter);

        mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener()
        {           
            @Override
            public void onPageSelected(int position)
            {
                    // When swiping between different app sections, select the corresponding tab.
                    // We can also use ActionBar.Tab#select() to do this if we have a reference to the Tab.
                    actionBar.setSelectedNavigationItem(position);
            }
        });
       /*final Tab firstTab = actionBar.newTab()
                .setText(mAppSectionsPagerAdapter.getPageTitle(0))
                .setTabListener(this)
                .setCustomView(R.id.nieuws_tab_layout);
        /*final Tab secondTab = actionBar.newTab()
                 .setText(mAppSectionsPagerAdapter.getPageTitle(1))
                 .setCustomView(R.id.nieuws_tab_layout);
        final Tab thirdTab = actionBar.newTab()
                .setText(mAppSectionsPagerAdapter.getPageTitle(2))
                .setCustomView(R.id.nieuws_tab_layout);

        actionBar.addTab(firstTab);
        actionBar.addTab(secondTab);
        actionBar.addTab(thirdTab);*/

        // For each of the sections in the app, add a tab to the action bar.
        for (int i = 0; i < mAppSectionsPagerAdapter.getCount(); i++)
        {
            if(i == 0)
            {
                final View firstCustomView = new CustomView(this);
                //firstCustomView.setBackgroundColor(Color.BLUE);
                Tab tab = actionBar.newTab().setText(mAppSectionsPagerAdapter.getPageTitle(i)).setTabListener(this).setCustomView(R.layout.nieuws_tab_layout);
                actionBar.addTab(tab);
            }
            else
            {
            // Create a tab with text corresponding to the page title defined by the adapter.
            // Also specify this Activity object, which implements the TabListener interface, as the
            // listener for when this tab is selected.
            Tab tab = actionBar.newTab().setText(mAppSectionsPagerAdapter.getPageTitle(i)).setTabListener(this);            
            actionBar.addTab(tab);
            }
        }
    }

    @Override
    public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) 
    {
    }

    @Override
    public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) 
    {
        //CustomView ctv;
        //ctv = new CustomView(context, R.attr.tabStyleAttr);
        // When the given tab is selected, switch to the corresponding page in the ViewPager.
        //LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
        //View tabView = inflater.inflate(R.layout.nieuws_tab_layout, null);
        //tabView.setBackgroundColor(0xFF00FF00);
        //tab.setCustomView(tabView);  
        mViewPager.setCurrentItem(tab.getPosition());
    }

    @Override
    public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction)
    {
    }

    public static class AppSectionsPagerAdapter extends FragmentPagerAdapter 
    {
        public AppSectionsPagerAdapter(FragmentManager fm)
        {
            super(fm);
        }

        @Override
        public Fragment getItem(int i) 
        {
            switch (i)
            {
                case 0:
                    // The first section of the app is the most interesting -- it offers
                    // a launchpad into the other demonstrations in this example application.
                    return new LaunchpadSectionFragment();

                default:
                    // The other sections of the app are dummy placeholders.
                    Fragment fragment = new DummySectionFragment();
                    Bundle args = new Bundle();
                    args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, i + 1);
                    fragment.setArguments(args);
                    return fragment;
            }
        }

        @Override
        public int getCount()
        {
            return 3;
        }

        @Override
        public CharSequence getPageTitle(int position) 
        {
            switch(position)
            {
                case 0:
                {
                    return "Tab1";
                }
                case 1:
                {
                    return "Tab2";
                }
                case 2:
                {
                    return "Tab3";
                }
                default:
                {
                    return "Section " + (position + 1);
                }
            }
        }
    }
    public static class LaunchpadSectionFragment extends Fragment
    {
        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState)
        {
            View rootView = inflater.inflate(R.layout.fragment_section_launchpad, container, false);

            // Demonstration of a collection-browsing activity.
            rootView.findViewById(R.id.demo_collection_button).setOnClickListener(new View.OnClickListener()
            {
                @Override
                public void onClick(View view) 
                {
                    Intent intent = new Intent(getActivity(), CollectionDemoActivity.class);
                    startActivity(intent);
                }
            });

            // Demonstration of navigating to external activities.
            rootView.findViewById(R.id.demo_external_activity).setOnClickListener(new View.OnClickListener()
            {
                @Override
                public void onClick(View view)
                {
                    // Create an intent that asks the user to pick a photo, but using
                    // FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, ensures that relaunching
                    // the application from the device home screen does not return
                    // to the external activity.
                    Intent externalActivityIntent = new Intent(Intent.ACTION_PICK);
                    externalActivityIntent.setType("image/*");
                    externalActivityIntent.addFlags(
                    Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
                    startActivity(externalActivityIntent);
                }
            });
            return rootView;
        }
    }

    /**
     * A dummy fragment representing a section of the app, but that simply displays dummy text.
     */
    public static class DummySectionFragment extends Fragment
    {
        public static final String ARG_SECTION_NUMBER = "section_number";

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
        {
            View rootView = inflater.inflate(R.layout.fragment_section_dummy, container, false);
            Bundle args = getArguments();
            ((TextView) rootView.findViewById(android.R.id.text1)).setText(getString(R.string.dummy_section_text, args.getInt(ARG_SECTION_NUMBER)));
            return rootView;
        }
    }
    public class CustomView extends View
    {
        public CustomView(Context context)
        {
            super(context, null);
        }
    } 
}

tab_layout.xml

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

  <TextView
              android:id="@+id/nieuws_tab_layout"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"              
              android:text="@string/nieuws"
              android:gravity="center_vertical"
              android:layout_marginTop="15dp"
              android:textColor="@android:color/white"
              android:textStyle="bold"
              android:background="@android:color/black"
              />
</LinearLayout>

Answer 1

只需在标签创建时设置自定义视图，例如：

final Tab firstTab = actionBar.newTab()
                              .setText(mAppSectionsPagerAdapter.getPageTitle(0))
                              .setCustomView(R.id.custom_tab_view_red);
final Tab secondTab = actionBar.newTab()
                               .setText(mAppSectionsPagerAdapter.getPageTitle(1))
                               .setCustomView(R.id.custom_tab_view_blue);
// etc

actionBar.addTab(firstTab);
actionBar.addTab(secondTab);
// etc

inCreate()中的

。

您还必须在xml布局文件中定义与上述View相对应的 id （而不是style s。）< / p>

或者，如果您想直接创建视图：

final View firstCustomView = new CustomView(this);
firstCustomView.setBackgroundColor(Color.BLUE);  // or with drawable or resource
final Tab firstTab = actionBar.newTab()
                              .setText(mAppSectionsPagerAdapter.getPageTitle(0))
                              .setCustomView(firstCustomView);
actionBar.addTab(firstTab);
// then same for other tabs, just with another color

留下以下信息以供参考：

要定义一个此类视图，您需要将其指定为Android Context。这通常是Activity，其中将显示选项卡。假设您在Activity中初始化标签，只需将Activity实例作为Context传递：

ctv = new CustomView(this, R.attr.tabStyleAttr);

如果来自Activity，或者例如：

ctv = new CustomView(getActivity(), R.attr.tabStyleAttr);

如果来自Fragment等内部

至于为操作栏标签设置特定样式，无需像您尝试的那样以编程方式创建自定义视图。首先阅读一点about the action bar，然后检查它们提供的the example。如您所见，您将能够在xml中指定选项卡样式：

在您的清单文件中，您可以将主题应用于整个应用：
<application android:theme="@style/CustomActionBarTheme" ... />
或个人活动：
<activity android:theme="@style/CustomActionBarTheme" ... />

例如。

有关完全匹配您的用例的完整示例，请参阅此Android doc文章：https://developer.android.com/training/basics/actionbar/styling.html#CustomTabs。注意使用state-lists来实现“当选择样式”时。

Answer 2

如果另一个人在我的情况下使用TabLayout我使用了这个片段

tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {
            tab.setCustomView(R.layout.chat_tab);

        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {
            tab.setCustomView(null);
        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {

        }
    });

Answer 3

我使用的是Tablayout，它由AndroidStudio库提供支持。添加选项卡时只需将setCustomView（）用于您要自定义的每个选项卡。类似下面的内容

    tabLayout.addTab(tabLayout.newTab().setText("FirstTab"));  // default tab
    tabLayout.addTab(tabLayout.newTab().setText("SecondTab").setCustomView(R.layout.tabview));  // Customized tab

以下是特定Tab的布局设计，以满足我们的要求，这里我只是将Tab文本颜色设置为不同

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/colorPrimaryDark">  <!-- TabLayout default color in my case -->
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Procurement"
    android:textAllCaps="true"
    android:textAppearance="@android:style/TextAppearance.DeviceDefault.Small"
    android:textColor="@color/tab_selection"  <!-- textcolor which ever you like-->
    android:textStyle="bold"/>

</LinearLayout>

如何自定义单个标签？（更改背景颜色，指示灯颜色和文字颜色）

3 个答案:

如何自定义单个标签？ （更改背景颜色，指示灯颜色和文字颜色）

3 个答案:

如何自定义单个标签？（更改背景颜色，指示灯颜色和文字颜色）