Silicon Valley News 8 -- replace ViewPagerIndicator with TabLayout and tablayoutindicator

Silicon Valley News 8 -- replace ViewPagerIndicator with TabLayout and tablayoutindicator

1. associated database

Compile 'com. android. support: design: 23.3.0'

 

2. Write TabLayout to the layout.

 <android.support.design.widget.TabLayout    android:id="@+id/tabLayout"    android:layout_width="0dp"    android:layout_height="wrap_content"    android:layout_gravity="center_vertical"    android:layout_weight="1" />

 

3. TabLayout and ViewPager Association

TabLayout. setupWithViewPager (viewPager); // pay attention to subsequent page changes. TabPageIndicator listens to page changes. // tabPagerIndicator. setOnPageChangeListener (new MyOnPageChangeListener (); viewPager. addOnPageChangeListener (new MyOnPageChangeListener (); tabLayout. setTabMode (TabLayout. MODE_SCROLLABLE)

　　

4. Solve the compatibility problem between TabLayout and ViewPagerIndicator.　

4.1 <activity android: name = ". activity. MainActivity" android: theme = "@ style/Theme. PageIndicatorDefaults"/>

4.2 modify the ViewPagerIndicator Library to the following:

<style name="Theme.PageIndicatorDefaults" parent="Theme.AppCompat.Light.NoActionBar">    <item name="vpiIconPageIndicatorStyle">@style/Widget.IconPageIndicator</item>    <item name="vpiTabPageIndicatorStyle">@style/Widget.TabPageIndicator</item></style>

4.3 add V7 package compile 'com. android. support: appcompat-v7: 23.3.0'

 

5. TabLayout set pointer color and Height & text color

5. 1. Add a style

<android.support.design.widget.TabLayout        android:id="@+id/tabLayout"        android:layout_width="wrap_content"       > <style name="MyCustomTabLayout" parent="Widget.Design.TabLayout">        <item name="tabMaxWidth">72dp</item>        <item name="tabMinWidth">72dp</item>        <item name="tabIndicatorColor">#ff0000</item>        <item name="tabIndicatorHeight">2dp</item>        <item name="tabTextAppearance">@style/MyCustomTabTextAppearance</item>        <item name="tabSelectedTextColor">@android:color/holo_red_light</item>    </style>    <style name="MyCustomTabTextAppearance" parent="TextAppearance.Design.Tab">        <item name="android:textSize">16sp</item>        <item name="android:textColor">@android:color/black</item>        <item name="textAllCaps">false</item>    </style>

 

6. TabLayout custom Style

1. Set the style

Vp_news_menu_detailpager.setAdapter (adapter); tabLayout. setupWithViewPager (vp_news_menu_detailpager); // sets the rolling mode tabLayout. setTabMode (TabLayout. MODE_SCROLLABLE); for (int I = 0; I <tabLayout. getTabCount (); I ++) {TabLayout. tab tab = tabLayout. getTabAt (I); tab. setCustomView (getTabView (I);} // note that setupWithViewPager must be in ViewPager. call after setAdapter ()

2. Add the getTabView () method to the adapter.

public View getTabView(int position){View view = LayoutInflater.from(context).inflate(R.layout.tab_item, null);TextView tv= (TextView) view.findViewById(R.id.textView);tv.setText(childrenDatas.get(position).getTitle());ImageView img = (ImageView) view.findViewById(R.id.imageView);img.setImageResource(R.drawable.dot_focus);return view;}

Layout file tab_item.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="wrap_content"android:layout_height="wrap_content"android:gravity="center_horizontal"android:orientation="vertical"><TextViewandroid:text="text"android:id="@+id/textView"android:textColor="#000000"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginLeft="3dp" /><ImageViewandroid:src="@drawable/dot_focus"android:id="@+id/imageView"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_centerVertical="true" /></LinearLayout>