Question

我一直在学习使用this post使用Material Design来使用滑动标签。我已成功实现了Toolbar下的SlidingTabs ，就像这样：

enter image description here

但现在我想创建 ActionBar / ToolBar片段标签 ...

Answer 1

我能够准确地重新创建您要实施的内容。我正在使用此Library作为标签。

这是我创建的视图：

enter image description here

通过依赖项导入库或下载项目并手动导入

compile 'com.jpardogo.materialtabstrip:library:1.0.9'

<强> styles.xml

<resources>

    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="colorPrimary">@color/primary</item>
        <item name="colorPrimaryDark">@color/primary_dark</item>
    </style>
</resources>

MainActivity＆amp;适配器

public class MainActivity extends ActionBarActivity { Toolbar toolbar; ViewPager viewPager; ContactPagerAdapter pagerAdapter; PagerSlidingTabStrip pagerSlidingTabStrip; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); toolbar = (Toolbar) findViewById(R.id.toolbar); toolbar.setLogo(R.mipmap.logo_two); toolbar.inflateMenu(R.menu.menu_main); viewPager = (ViewPager) findViewById(R.id.pager); pagerAdapter = new ContactPagerAdapter(this, getSupportFragmentManager()); pagerSlidingTabStrip = (PagerSlidingTabStrip) findViewById(R.id.tabs); viewPager.setAdapter(pagerAdapter); pagerSlidingTabStrip.setViewPager(viewPager); } public static class ContactPagerAdapter extends FragmentPagerAdapter implements PagerSlidingTabStrip.CustomTabProvider { private final int[] ICONS = {R.mipmap.ic_launcher, R.mipmap.ic_launcher}; Context mContext; private Fragment f = null; public ContactPagerAdapter(Context ctx, FragmentManager fm) { super(fm); mContext = ctx; } @Override public int getCount() { return ICONS.length; } @Override public Fragment getItem(int position) { // Returns Fragment based on position switch (position) { case 0: f = new FragmentPageOne(); break; case 1: f = new FragmentPageTwo(); break; } return f; } @Override public View getCustomTabView(ViewGroup parent, int position) { LinearLayout customLayout = (LinearLayout) LayoutInflater.from(mContext).inflate(R.layout.custom_tab, parent, false); ImageView imageView = (ImageView) customLayout.findViewById(R.id.image); imageView.setImageResource(ICONS[position]); return customLayout; } } }

<强> activity_main.xml中

<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:layout_height="match_parent"> <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="#02a6d8" android:minHeight="56dp" app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"> <com.astuetz.PagerSlidingTabStrip android:id="@+id/tabs" android:layout_width="wrap_content" android:layout_height="56dp" android:layout_alignParentRight="true" android:layout_marginLeft="8dp" android:background="#02a6d8" app:pstsDividerColor="#02a6d8" app:pstsIndicatorColor="#fff" app:pstsIndicatorHeight="2dp" app:pstsShouldExpand="false" app:pstsUnderlineHeight="0dp"/> </android.support.v7.widget.Toolbar> <android.support.v4.view.ViewPager android:id="@+id/pager" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@+id/toolbar"/>  <LinearLayout android:layout_width="match_parent" android:layout_height="5dp" android:layout_below="@+id/toolbar" android:background="@drawable/toolbar_shadow"/> </RelativeLayout>

<强> custom_tab.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="30dp" android:layout_height="wrap_content"> <ImageView android:id="@+id/image" android:layout_width="30dp" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:paddingBottom="8dp" android:paddingTop="8dp"/> </LinearLayout>

Drawable toolbar_shadow.xml

<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <gradient android:angle="270" android:endColor="@android:color/transparent" android:startColor="@color/semi_transparent"/> </shape>

Answer 2

实际上标签不在工具栏中。工具栏刚刚隐藏。您可以隐藏调用getSupportActionBar().hide()的工具栏，工具栏将会消失。因此，选项卡将位于屏幕顶部。

Answer 3

正如我已经写过的，你可以在这里找到一个例子：http://www.android4devs.com/2015/01/how-to-make-material-design-sliding-tabs.html

顺便说一句，您需要的是在您的项目中包含此代码：https://developer.android.com/samples/SlidingTabsColors/src/com.example.android.common/view/SlidingTabLayout.html。因此，创建一个用于粘贴整个代码的类。

然后创建扩展ActionBarActivity的活动，例如此活动：

public class MainActivity extends ActionBarActivity {

static final String LOG_TAG = "SlidingTabsBasicFragment";
private SlidingTabLayout mSlidingTabLayout;
private ViewPager mViewPager;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.fragment_sample);
    Toolbar toolbar = (Toolbar) findViewById(R.id.my_awesome_toolbar);

    mViewPager = (ViewPager) findViewById(R.id.viewpager);
    mViewPager.setAdapter(new SamplePagerAdapter());
    mSlidingTabLayout = (SlidingTabLayout) findViewById(R.id.sliding_tabs);
    mSlidingTabLayout.setViewPager(mViewPager);

    /*
     * FragmentTransaction transaction =
     * getSupportFragmentManager().beginTransaction();
     * SlidingTabsBasicFragment fragment = new SlidingTabsBasicFragment();
     * transaction.replace(R.id.sample_content_fragment, fragment);
     * transaction.commit();
     */

}

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

class SamplePagerAdapter extends PagerAdapter {

    /**
     * @return the number of pages to display
     */
    @Override
    public int getCount() {
        return 5;
    }

    /**
     * @return true if the value returned from
     *         {@link #instantiateItem(ViewGroup, int)} is the same object
     *         as the {@link View} added to the {@link ViewPager}.
     */
    @Override
    public boolean isViewFromObject(View view, Object o) {
        return o == view;
    }

    // BEGIN_INCLUDE (pageradapter_getpagetitle)
    /**
     * Return the title of the item at {@code position}. This is important
     * as what this method returns is what is displayed in the
     * {@link SlidingTabLayout}.
     * <p>
     * Here we construct one using the position value, but for real
     * application the title should refer to the item's contents.
     */
    @Override
    public CharSequence getPageTitle(int position) {
        return "Item " + (position + 1);
    }

    // END_INCLUDE (pageradapter_getpagetitle)

    /**
     * Instantiate the {@link View} which should be displayed at
     * {@code position}. Here we inflate a layout from the apps resources
     * and then change the text view to signify the position.
     */
    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        // Inflate a new layout from our resources

        View view = getLayoutInflater().inflate(R.layout.pager_item,
                container, false);
        // Add the newly created View to the ViewPager
        container.addView(view);

        // Retrieve a TextView from the inflated View, and update it's text
        TextView title = (TextView) view.findViewById(R.id.item_title);
        title.setText(String.valueOf(position + 1));

        Log.i(LOG_TAG, "instantiateItem() [position: " + position + "]");

        // Return the View
        return view;
    }

    /**
     * Destroy the item from the {@link ViewPager}. In our case this is
     * simply removing the {@link View}.
     */
    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView((View) object);
        Log.i(LOG_TAG, "destroyItem() [position: " + position + "]");
    }

}

当然这个片段布局：

<?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" >

    <android.support.v7.widget.Toolbar
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/my_awesome_toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" 
        android:minHeight="?attr/actionBarSize"

        app:theme="@style/ThemeOverlay.AppCompat.ActionBar">

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

            <com.example.android.common.view.SlidingTabLayout
                android:id="@+id/sliding_tabs"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />
        </LinearLayout>
    </android.support.v7.widget.Toolbar>

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="0px"
        android:layout_weight="1"
        android:background="@android:color/white" />

</LinearLayout>

和pager_item.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"
      android:gravity="center">

    <TextView
          android:id="@+id/item_subtitle"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:textAppearance="?android:attr/textAppearanceLarge"
          android:text="Page:"/>

    <TextView
          android:id="@+id/item_title"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:textSize="80sp" />

</LinearLayout>

这是做到这一点的方法。

您也可以使用此库：https://github.com/florent37/MaterialViewPager或此库：https://android-arsenal.com/details/1/1100

使用Material Design在工具栏中滑动选项卡

3 个答案: