在3个选项卡上添加图像

时间:2016-03-07 13:35:05

标签: android tabs android-tablayout

如何将图像添加到标签中?目前,我可以将标签移至底部,但不知道如何将LL Tab1LL Tab2LL Tab3更改为icon.Am我在正确的道路上?任何帮助将不胜感激。

xml代码

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/tabhost"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical"
        android:padding="5dp" >


        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:padding="5dp"
            android:layout_weight="1" >

            <LinearLayout
                android:id="@+id/ll_tab1"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical" />

            <LinearLayout
                android:id="@+id/ll_tab2"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical" />

            <LinearLayout
                android:id="@+id/ll_tab3"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical" />
        </FrameLayout>
        <TabWidget
            android:id="@android:id/tabs"
            android:background="@color/light_gray"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="0"/>
    </LinearLayout>

</TabHost>

enter image description here

任何人都可以提供帮助?非常感谢!

5 个答案:

答案 0 :(得分:9)

尝试使用TabLayout中的Android Design Support Library来见material design guidelines for tabs

  

设计库的TabLayout实现了两个固定标签,其中   视图的宽度在所有选项卡之间平均分配,以及   可滚动选项卡,其中选项卡的大小不均匀并且可以滚动   水平。

要实施TabLayout,请检查此guidehow to add the icon for swipeable tabs,使用setIcon将标签设置为标签。

final int[] ICONS = new int[]{
        R.drawable.ic_action_document,
        R.drawable.ic_action_tick,
        R.drawable.ic_action_trash};
        ....
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);

tabLayout.getTabAt(0).setIcon(ICONS[0]);
tabLayout.getTabAt(1).setIcon(ICONS[1]);
tabLayout.getTabAt(2).setIcon(ICONS[2]);

要设置TabLayout检查中底部的标签 - How can I set tabs at the bottom and also hide top actionbar?,将TabLayout放在relativeLayout中并将其与父底部对齐:

<android.support.design.widget.TabLayout
    android:id="@+id/tab_layout"
    app:tabMode="fixed"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?attr/colorPrimary"
    android:elevation="6dp"
    app:tabTextColor="#d3d3d3"
    app:tabSelectedTextColor="#ffffff"
    app:tabIndicatorColor="#ff00ff"
    android:minHeight="?attr/actionBarSize"
    android:layout_alignParentBottom="true"
    />

虽然您可以将标签布局放在底部,但如果可能,请尽量不要使用底部标签栏。{/ 3}}指南。

  

其他平台使用底部标签栏在应用程序之间切换   观点。根据平台惯例,Android的视图控件选项卡是   而是显示在屏幕顶部的操作栏中。

答案 1 :(得分:5)

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.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;

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


public class MainActivity extends AppCompatActivity {

    private Toolbar toolbar;
    private TabLayout tabLayout;
    private ViewPager viewPager;
    private int[] tabIcons = {
        R.drawable.ic_tab_favourite,
        R.drawable.ic_tab_call,
        R.drawable.ic_tab_contacts
};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        viewPager = (ViewPager) findViewById(R.id.viewpager);
        setupViewPager(viewPager);

        tabLayout = (TabLayout) findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(viewPager);
        setupTabIcons();
    }
 private void setupTabIcons() {
    tabLayout.getTabAt(0).setIcon(tabIcons[0]);
    tabLayout.getTabAt(1).setIcon(tabIcons[1]);
    tabLayout.getTabAt(2).setIcon(tabIcons[2]);
}
    private void setupViewPager(ViewPager viewPager) {
        ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
        adapter.addFragment(new OneFragment(), "ONE");
        adapter.addFragment(new TwoFragment(), "TWO");
        adapter.addFragment(new ThreeFragment(), "THREE");
        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);
        }
    }
} 

标签布局 activity_main.xml中

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

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

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

此选项卡中使用的片段(类)

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;



public class OneFragment extends Fragment{

    public OneFragment() {
        // Required empty public constructor
    }

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

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_one, container, false);
    }

}

Xml文件 fragment_one.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".fragments.OneFragment">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/one"
        android:textSize="40dp"
        android:textStyle="bold"
        android:layout_centerInParent="true"/>

</RelativeLayout>

<强> TwoFragment.java

import android.os.Bundle;
    import android.support.v4.app.Fragment;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;



    public class TwoFragment extends Fragment{

        public TwoFragment() {
            // Required empty public constructor
        }

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

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            // Inflate the layout for this fragment
            return inflater.inflate(R.layout.fragment_two, container, false);
        }

    }

<强> fragment_two.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".fragments.TwoFragment">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/one"
        android:textSize="40dp"
        android:textStyle="bold"
        android:layout_centerInParent="true"/>

</RelativeLayout>

你可以像我上面那样创建第三个片段类和布局。

运行它。希望这会起作用

答案 2 :(得分:2)

试试这个,

puth this activity_main.xml并将自定义高度设置为TabLayout。

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

在res⇒布局下创建名为custom_tab.xml的xml布局。在此布局中,我们已为选项卡定义了自定义视图。

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tab"
android:textColor="@color/colorAccent"
android:textSize="@dimen/tab_label"
android:fontFamily="@string/font_fontFamily_medium"/>

打开MainActivity.java并修改代码,如下所示。在这里,如果您观察setupTabIcons()方法,我使用下面的代码行在每个选项卡中呈现了custom_tab.xml布局。

TextView tabOne = (TextView) LayoutInflater.from(this).inflate(R.layout.custom_tab, null);
tabOne.setText("ONE");
tabOne.setCompoundDrawablesWithIntrinsicBounds(0, R.drawable.ic_tab_favourite, 0, 0);
tabLayout.getTabAt(0).setCustomView(tabOne);

TextView tabTwo = (TextView) LayoutInflater.from(this).inflate(R.layout.custom_tab, null);
tabTwo.setText("TWO");
tabTwo.setCompoundDrawablesWithIntrinsicBounds(0, R.drawable.ic_tab_call, 0, 0);
tabLayout.getTabAt(1).setCustomView(tabTwo);

TextView tabThree = (TextView) LayoutInflater.from(this).inflate(R.layout.custom_tab, null);
tabThree.setText("THREE");
tabThree.setCompoundDrawablesWithIntrinsicBounds(0, R.drawable.ic_tab_contacts, 0, 0);
tabLayout.getTabAt(2).setCustomView(tabThree);

答案 3 :(得分:1)

试试这个,真的很有趣。必须是解决方案

http://www.androidhive.info/2015/09/android-material-design-working-with-tabs/

答案 4 :(得分:-1)

您可以将ImageView放置在每个标签的Linearlayout中,也可以将drawable设置为LinearLayout的背景。如果您的图像将作为背景,那么您显然希望将该图像添加为背景,而不是将ImageView作为子项添加到LinearLayout。如果它将是内容,而不是背景,您应该向每个LinearLayout添加一个ImageView,就像您将任何其他类型的子项添加到父视图一样。