想写几篇关于Recyclerview的文章,对Recyclerview做一个系统的总结。不过万事起于忽微,来先看看Recyclerview的最基本的使用。
1.看看最终效果
2.LinearLayoutManagerRecyclerview.activity
package signin.company.com.recyclerviewdemo.simpleuse;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
import signin.company.com.recyclerviewdemo.R;
public class LinearLayoutManagerRecyclerview extends AppCompatActivity {
private RecyclerView mRecyclerView;
private List<String> mDatas;
private TestAdapter mAdapter;
public static void newInstance(Context context) {
context.startActivity(new Intent(context, LinearLayoutManagerRecyclerview.class));
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_single_recyclerview);
initData();
mRecyclerView = (RecyclerView) findViewById(R.id.id_recyclerview);
//mRecyclerView.setLayoutManager(new GridLayoutManager(this,3));
//mRecyclerView.setLayoutManager(new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL));
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
mRecyclerView.setAdapter(mAdapter = new TestAdapter());
}
protected void initData() {
mDatas = new ArrayList<String>();
for (int i = 1; i < 60; i++) {
mDatas.add(String.valueOf(i));
}
}
class TestAdapter extends RecyclerView.Adapter<TestAdapter.MyViewHolder> {
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
MyViewHolder holder = new MyViewHolder(LayoutInflater.from(
LinearLayoutManagerRecyclerview.this).inflate(R.layout.item_text, parent,
false));
return holder;
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
holder.tv.setText(mDatas.get(position));
}
@Override
public int getItemCount() {
return mDatas.size();
}
class MyViewHolder extends RecyclerView.ViewHolder {
TextView tv;
public MyViewHolder(View view) {
super(view);
tv = (TextView) view.findViewById(R.id.id_num);
}
}
}
}
3.activity_single_recyclerview.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/id_recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
4.item_text.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#EFF5F5">
<TextView
android:id="@+id/id_num"
android:layout_width="match_parent"
android:layout_height="50dp"
android:textSize="20sp"
android:gravity="center"
android:text="1" />
</FrameLayout>