将选项卡布局中的图标左对齐

Question

您好，我在我的活动中创建了一个选项卡布局。这是主要的 .xml 文件：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    android:id="@+id/main_layout"
    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"
    tools:context="com.xxxxxx.eventmanager.EventDetailsActivity">

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

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:background="?attr/colorPrimary"
            android:elevation="6dp"
            android:minHeight="?attr/actionBarSize"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

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

    <android.support.design.widget.TabLayout
        android:id="@+id/tab_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/toolbarContainer"
        android:background="?attr/colorPrimary"
        android:elevation="6dp"
        android:minHeight="?attr/actionBarSize"
        app:tabTextColor="@color/colorLight"
        app:tabSelectedTextColor="@color/colorAccent"
        android:textAlignment=""
        android:theme="@style/AppTheme"/>

    <android.support.v4.view.ViewPager
        android:id="@+id/pager"
        android:layout_width="match_parent"
        android:layout_height="fill_parent"
        android:layout_below="@id/tab_layout"/>

</RelativeLayout>

这是我的 .java 类：

package com.xxxxxx.eventmanager;

import android.graphics.drawable.Drawable;
import android.support.design.widget.TabLayout;
import android.support.v13.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;

import com.xxxxxx.eventmanager.adapters.EventPagerAdapter;

public class EventDetailsActivity extends AppCompatActivity  {

    /**
     * The {@link android.support.v4.view.PagerAdapter} that will provide
     * fragments for each of the sections. We use a
     * {@link FragmentPagerAdapter} derivative, which will keep every
     * loaded fragment in memory. If this becomes too memory intensive, it
     * may be best to switch to a
     * {@link android.support.v13.app.FragmentStatePagerAdapter}.
     *
     * private SectionsPagerAdapter mSectionsPagerAdapter;
     *
     */

    private Toolbar toolbar;

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

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

        TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout);
        tabLayout.addTab(tabLayout.newTab().setText("Details").setIcon(R.mipmap.ic_details));
        tabLayout.addTab(tabLayout.newTab().setText("Sales").setIcon(R.mipmap.ic_sales));
        tabLayout.addTab(tabLayout.newTab().setText("Purchases").setIcon(R.mipmap.ic_purchase));
        tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);

        final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
        final EventPagerAdapter adapter = new EventPagerAdapter
                (getSupportFragmentManager(), tabLayout.getTabCount());
        viewPager.setAdapter(adapter);
        viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
        tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                viewPager.setCurrentItem(tab.getPosition());
            }

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

            }

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

            }
        });

    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_event_details, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

}

现在标签显示如下：

但是现在我希望图标显示在文本的左侧，而不是文本的顶部。

Answer 1

我有你们想要的确切解决方案。

<android.support.design.widget.TabLayout
    android:id="@+id/tabLayout"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:textAlignment="textStart"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:tabInlineLabel="true"
    app:tabPaddingStart="@dimen/default_10dp">

使用以下属性，您可以获得想要的结果。

app:tabInlineLabel="true"

Answer 2

只需将此行添加到 XML 中的 TabLayout

app:tabInlineLabel="true"

Answer 3

@Tjerkw 给出的答案是好的，只是它不会遍历整个选项卡。我想正确的解决方案应该是这样的

for (int i = 0; i < tabLayout.getTabCount(); i++ ) {
     yourlinearlayout = (LinearLayout) LayoutInflater.from(getContext()).inflate(R.layout.title_text, null);
     tab_text = (TextView) yourlinearlayout.findViewById(R.id.tabContent);
            tab_text.setText("  " + tab_titles[i]);
     tab_text.setCompoundDrawablesWithIntrinsicBounds(tabicons[i], 0, 0, 0);
        tabLayout.getTabAt(i).setCustomView(tab_text);}

代表R.layout.title_text的布局资源.xml将是

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<TextView
    android:id="@+id/tabContent"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:textAlignment="center"
    android:textColor="@android:color/white"
    android:gravity="center"/>

最后，tabicons[i] 和标签tab_titles[i] 只是包含它们各自内容的字符串数组。 我知道这个问题已经过时了，但我最近遇到了这个问题，我相信其他人可能仍然需要这个

Answer 4

TabLayout 也支持自定义视图而不是 TabView。

1.创建你的标签项布局。主要思想是我们应该使用指定id 对于 ImageView @android:id/icon 和对于 TextView @android:id/text1

R.layout.custom_tab_item

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/color_app_background"
    android:gravity="center"
    android:orientation="horizontal">

    <ImageView
        android:id="@android:id/icon"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:src="@drawable/appoinments_" />

    <com.app.barber.views.CustomTextView
        android:id="@android:id/text1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:gravity="center"
        android:paddingBottom="@dimen/_8sdp"
        android:paddingLeft="@dimen/_5sdp"
        android:paddingTop="@dimen/_8sdp"
        android:text="@string/title_appointments"
        android:textColor="@color/color_white"
        android:textSize="@dimen/_12ssp" />
</LinearLayout>

2。和 TabLayout xml 文件

 <android.support.design.widget.TabLayout
      xmlns:app="http://schemas.android.com/apk/res-auto"
      android:id="@+id/tab_layout"
      android:layout_width="match_parent"
      android:layout_height="?attr/actionBarSize"
      android:background="?attr/colorPrimary"
      app:tabMaxWidth="0dp"
      app:tabGravity="fill"
      app:tabMode="fixed"
      android:theme="@style/vocabularyTheme.ActionBar" />

3.使用自定义视图创建tabLayout，并移除默认设置为8dp的底部边距

mTabLayout = (TabLayout) findViewById(R.id.tab_layout);     
mTabLayout.addTab(createTab(text1,icon1));
mTabLayout.addTab(createTab(text2,icon2));

private TabLayout.Tab createTab(String text, Drawable icon){
    TabLayout.Tab tab = mTabLayout.newTab().setText(text).setIcon(icon).setCustomView(R.layout.custom_tab_item);

    // remove imageView bottom margin
    if (tab.getCustomView() != null){
        ImageView imageView = (ImageView) tab.getCustomView().findViewById(android.R.id.icon);
        ViewGroup.MarginLayoutParams lp = ((ViewGroup.MarginLayoutParams) imageView.getLayoutParams());
        lp.bottomMargin = 0;
        imageView.requestLayout();
    }

    return tab;
}

预期结果。

Answer 5

使用自定义视图：

TextView newTab = (TextView) LayoutInflater.from(this).inflate(R.layout.custom_tab, null);
newTab.setText("tab1"); //tab label txt
newTab.setCompoundDrawablesWithIntrinsicBounds(your_drawable_icon_here, 0, 0, 0);
tabLayout.getTabAt(tab_index_here_).setCustomView(newTab);

Answer 6

您必须在Toolbar 中引入ActionMenuView。

来自Google Official docs “ActionMenuView 是一系列菜单选项作为视图的呈现。它提供了几个顶级选项作为操作按钮，同时将剩余选项作为溢出菜单中的项目溢出。这个允许应用程序呈现包含特定或重复内容的动作包。”

例如，

<android.support.v7.widget.Toolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/tToolbar"
    android:layout_height="?attr/actionBarSize"
    android:layout_width="match_parent"
    android:background="?attr/colorPrimary"
    android:gravity="center_vertical|start"
    app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light">

    <android.support.v7.widget.ActionMenuView
        android:id="@+id/amvMenu"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"/>
</android.support.v7.widget.Toolbar>

在你的活动中，

Toolbar t = (Toolbar) findViewById(R.id.tToolbar);
    amvMenu = (ActionMenuView) t.findViewById(R.id.amvMenu);
    amvMenu.setOnMenuItemClickListener(new ActionMenuView.OnMenuItemClickListener() {
      @Override
      public boolean onMenuItemClick(MenuItem menuItem) {
        return onOptionsItemSelected(menuItem);
      }
    });