Android編程入門--RecyclerView使用

標籤：android   pch   override   log   ext   layout   extends   and   ima   

布局

    <android.support.v7.widget.RecyclerView        android:id="@+id/rv_department"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:clipChildren="false"        android:clipToPadding="false"        android:padding="8dp" />

item 布局

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="wrap_content"    android:layout_height="wrap_content">    <android.support.v7.widget.CardView        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_centerInParent="true"        android:layout_margin="8dp">    <TextView        android:id="@+id/tv"        android:layout_width="match_parent"        android:layout_height="36dp"        android:background="@drawable/bg_white_to_gray"        android:foreground="?attr/selectableItemBackground"        android:gravity="center"/>    </android.support.v7.widget.CardView></RelativeLayout>

Adapter

public class DeptAdapter extends RecyclerView.Adapter<DeptAdapter.ViewHolder>{    public String[] datas = null;    public DeptAdapter(String[] datas) {        this.datas = datas;    }    @Override    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {        View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_dept,viewGroup,false);        ViewHolder vh = new ViewHolder(view);        return vh;    }    @Override    public void onBindViewHolder(ViewHolder viewHolder, int position) {        viewHolder.mTextView.setText(datas[position]);    }    @Override    public int getItemCount() {        return datas.length;    }    class ViewHolder extends RecyclerView.ViewHolder {        private TextView mTextView;        public ViewHolder(View view){            super(view);            mTextView = (TextView) view.findViewById(R.id.tv);        }    }}

 

GridLayoutManager方式

        GridLayoutManager manager = new GridLayoutManager(this, 4);        rv_department.setLayoutManager(manager);        rv_department.setItemAnimator(new DefaultItemAnimator());//設定動畫        DeptAdapter mAdapter = new DeptAdapter(new String[]{"東潤","研發部","科技"});        rv_department.setAdapter(mAdapter);

 

Android編程入門--RecyclerView使用