Android实现滑动标签页
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本文实例为大家分享了Android实现滑动标签页的具体代码，供大家参考，具体内容如下
TabLayoutActivity.java
package cn.edu.zufe.app0406;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentPagerAdapter;
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
import androidx.viewpager.widget.ViewPager;
import android.annotation.SuppressLint;
import android.os.Bundle;
import com.google.android.material.appbar.AppBarLayout;
import com.google.android.material.tabs.TabLayout;
import java.util.ArrayList;
import java.util.List;
import cn.edu.zufe.app0406.adapter.FragmentAdapter;
public class TabLayoutActivity extends AppCompatActivity {
private AppBarLayout abl;
private Toolbar tbTool;
private TabLayout tl;
private ViewPager vp;
private SwipeRefreshLayout srl;
private List<Fragment> fragments = new ArrayList<>();
private FragmentAdapter fragmentAdapter;
private void initViewPager() {
List<String> titles = new ArrayList<>();
titles.add("精选");
titles.add("体育");
titles.add("娱乐");
titles.add("军事");
titles.add("美食");
titles.add("旅游");
titles.add("风景");
for(int i=0; i<titles.size(); i++) {
tl.addTab(tl.newTab().setText(titles.get(i)));
}
for(int i=0; i<titles.size(); i++) {
fragments.add(new FruitFragment());
}
fragmentAdapter = new FragmentAdapter(getSupportFragmentManager(), FragmentPagerAdapter.BEHAVIOR_SET_USER_VISIBLE_HINT, fragments, titles);
vp.setAdapter(fragmentAdapter);
tl.setupWithViewPager(vp);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tab_layout);
abl = (AppBarLayout) findViewById(R.id.abl);
tbTool = (Toolbar) findViewById(R.id.tb_tool);
tl = (TabLayout) findViewById(R.id.tl);
vp = (ViewPager) findViewById(R.id.vp);
srl = (SwipeRefreshLayout) findViewById(R.id.srl);
setSupportActionBar(tbTool);
initViewPager();
srl.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@SuppressLint("RestrictedApi")
@Override
public void onRefresh() {
FruitFragment fragment = new FruitFragment();
for(int i = 0; i < fragments.size(); i++) {
fragment = (FruitFragment) fragments.get(i);
if(fragment != null && fragment.isAdded() && fragment.isMenuVisible()) {
break;
}
}
fragment.refreshFruit();
srl.setRefreshing(false);
}
});
}
}activity_tab_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".TabLayoutActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/abl" >
<androidx.appcompat.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways"
android:id="@+id/tb_tool" />
<com.google.android.material.tabs.TabLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/tl"
app:tabMode="scrollable" />
</com.google.android.material.appbar.AppBarLayout>
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:id="@+id/srl" >
<androidx.viewpager.widget.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/vp" >
</androidx.viewpager.widget.ViewPager>
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>FruitAdapter.java
package cn.edu.zufe.app0406.adapter;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.bumptech.glide.Glide;
import com.google.android.material.card.MaterialCardView;
import java.util.List;
import cn.edu.zufe.app0406.R;
import cn.edu.zufe.app0406.bean.Fruit;
public class FruitAdapter extends RecyclerView.Adapter<FruitAdapter.ViewHolder> {
private Context mContext;
private List<Fruit> mFruitList;
public FruitAdapter(List<Fruit> mFruitList) {
this.mFruitList = mFruitList;
}
static class ViewHolder extends RecyclerView.ViewHolder {
private MaterialCardView cardView;
private ImageView ivFruit;
private TextView tvFruit;
public ViewHolder(@NonNull View itemView) {
super(itemView);
cardView = (MaterialCardView) itemView;
ivFruit = (ImageView) cardView.findViewById(R.id.iv_fruit);
tvFruit = (TextView) cardView.findViewById(R.id.tv_fruit);
}
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
if(mContext == null) {
mContext = parent.getContext();
}
View view = LayoutInflater.from(mContext).inflate(R.layout.card_info_item, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
Fruit fruit = mFruitList.get(position);
holder.tvFruit.setText(fruit.getName());
Glide.with(mContext).load(fruit.getImageUrl()).into(holder.ivFruit);
}
@Override
public int getItemCount() {
return mFruitList.size();
}
}
FragmentAdapter.java
package cn.edu.zufe.app0406.adapter;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter;
import java.util.List;
public class FragmentAdapter extends FragmentPagerAdapter {
private List<Fragment> fragments;
private List<String> titles;
public FragmentAdapter(@NonNull FragmentManager fm, int behavior, List<Fragment> fragments, List<String> titles) {
super(fm, behavior);
this.fragments = fragments;
this.titles = titles;
}
@Nullable
@Override
public CharSequence getPageTitle(int position) {
return titles.get(position);
}
@NonNull
@Override
public Fragment getItem(int position) {
return fragments.get(position);
}
@Override
public int getCount() {
return fragments.size();
}
}以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
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