Android实现滑动标签页
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我们。
赞 (0)