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TabLayout+ViewPager+Fragment制作页卡

本人很懒,直接上代码了。

布局文件:

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.ztd.nahu.activity.HomeActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.TabLayout
android:id="@+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabIndicatorColor="@android:color/transparent"
app:tabIndicatorHeight="0dp"
app:tabSelectedTextColor="@android:color/holo_red_light"
app:tabTextColor="@android:color/black"
android:layout_alignParentBottom="true">
</android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@+id/tab_layout"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>

Tab自定义布局:

<?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:gravity="center"
android:orientation="horizontal">
<ImageView
android:id="@+id/img"
android:layout_width="20dp"
android:layout_height="20dp" />
<TextView
android:id="@+id/title_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/tab_text_color"/>
</LinearLayout>

Activity代码:
public class HomeActivity extends AppCompatActivity {
@BindView(R.id.tab_layout)
TabLayout mTabLayout;
@BindView(R.id.container)
ViewPager mViewPager;
private TabPagerAdapter mSectionsPagerAdapter;
private String[] titleArra = new String[]{"最新", "娱乐", "财经", "体育"};
private int[] imgArra = {R.mipmap.ic_launcher, R.mipmap.ic_launcher, R.mipmap.ic_launcher, R.mipmap.ic_launcher};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
ButterKnife.bind(this);

// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new TabPagerAdapter(this, getSupportFragmentManager(), titleArra, imgArra);

//TabLayout设置为宽度占满屏幕或者为可滚动
mTabLayout.setTabMode(TabLayout.MODE_FIXED);

// Set up the ViewPager with the sections adapter.
mViewPager.setAdapter(mSectionsPagerAdapter);
mTabLayout.setupWithViewPager(mViewPager);

//Add the tag elements
for (int i = 0; i < titleArra.length; i++) {
TabLayout.Tab tab = mTabLayout.getTabAt(i);
tab.setCustomView(mSectionsPagerAdapter.getTabView(i));
}
}
@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_home, 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);
}
}
适配器:
public class TabPagerAdapter extends FragmentPagerAdapter {
private Context mContext;
private String[] titleArra = null;
private int[] imgArra = null;
public TabPagerAdapter(Context context, FragmentManager fm, String[] titleArra, int[] imgArra) {
super(fm);
this.mContext = context;
this.titleArra = titleArra;
this.imgArra = imgArra;
}
@Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
switch (position) {
case 0:
break;
case 1:
break;
case 2:
break;
case 3:
break;
}
return MapFragment.newInstance(position + 1);
}
@Override
public int getCount() {
return titleArra == null ? 0 : titleArra.length;
}
@Override
public CharSequence getPageTitle(int position) {
return titleArra != null ? titleArra[position] : null;
}

public View getTabView(int position) {
View view = LayoutInflater.from(mContext).inflate(R.layout.icon_layout, null);
TextView tv = (TextView) view.findViewById(R.id.title_tv);
ImageView imageView = (ImageView) view.findViewById(R.id.img);
if (imgArra == null || titleArra == null) {
return view;
}
tv.setText(titleArra[position]);
imageView.setImageResource(imgArra[position]);
return view;
}
}

TabLayout+ViewPager+Fragment制作页卡