流式布局

最新推荐文章于 2019-10-05 01:05:24 发布

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最新推荐文章于 2019-10-05 01:05:24 发布

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分类专栏：流式布局适配器文章标签：流逝布局

本文链接：https://blog.youkuaiyun.com/qq_42960779/article/details/84961730

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适配器同时被 2 个专栏收录

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package com.example.Anmation;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;

import com.example.day12rikao.R;

public class RecycleStaggeredActivity extends AppCompatActivity {

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.stag);

    initData();
}
private void initData() {
    RecyclerView recyclerView =findViewById(R.id.stagg);
    StaggeredGridLayoutManager manager = new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL);
    //设置布局管理器
    recyclerView.setLayoutManager(manager);

    StaggeredAdapter adapter = new StaggeredAdapter(this);

    int[] ints = new int[]{
            R.drawable.timg1,R.drawable.timg,R.drawable.timg3
    };
    for(int i=0;i<30;i++)
    {
        User user = new User();
        user.setName("赵军辉"+i);
        user.setAvatar(ints[i%ints.length]);
        adapter.addItem(user);
    }

    recyclerView.setAdapter(adapter);
    //设置分隔线
    DividerGridItemDecoration dividerGridItemDecoration = new DividerGridItemDecoration(this);
    recyclerView.addItemDecoration(dividerGridItemDecoration);

    //设置增加或删除条目的动画
    recyclerView.setItemAnimator(new DefaultItemAnimator());
}

}

适配器的写法package com.example.Anmation;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.example.day12rikao.R;

import java.util.ArrayList;
import java.util.List;

public class StaggeredAdapter extends RecyclerView.Adapter<StaggeredAdapter.VierHolder> {

private Context mContext;
private List<User> mlist;

public StaggeredAdapter(Context context){
    this.mContext = context;
    mlist = new ArrayList<>();
}

public void addItem(User user){
    if(user!=null)
    {
        mlist.add(user);
    }
}
@NonNull
@Override
public StaggeredAdapter.VierHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {

    View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.stag_item,viewGroup,false);

    return new VierHolder(view);
}

@Override
public void onBindViewHolder(@NonNull StaggeredAdapter.VierHolder vierHolder, int i) {

    User user = mlist.get(i);
    vierHolder.title.setText(user.getName());
    Glide.with(mContext).load(user.getAvatar()).into(vierHolder.image);
}

@Override
public int getItemCount() {
    return mlist.size();
}

static class VierHolder extends RecyclerView.ViewHolder{

    public ImageView image;
    public TextView title;

    public VierHolder(@NonNull View itemView) {
        super(itemView);

        image = itemView.findViewById(R.id.stag_image);
        title = itemView.findViewById(R.id.stag_title);
    }
}

}