自动水平滚动的RecyclerView

AutoHorizontalRecyclerview

自动水平滚动的RecyclerView

思路

1.准备N张图片

2.使用recyclerview.scrollBy 每隔一段时间水平滚动一段距离

实现代码

1.activty_main布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="leifu.autohorizontalrecyclerview.MainActivity">

<android.support.v7.widget.RecyclerView
android:id="@+id/rv_RecyclerView"
android:layout_width="match_parent"
android:layout_height="200dp"></android.support.v7.widget.RecyclerView>
</LinearLayout>

2.item布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">

<ImageView
android:id="@+id/iv_img"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_margin="10dp"
android:scaleType="fitXY"/>
</LinearLayout>

3.MainActivity代码

“`java

public class MainActivity extends AppCompatActivity {

private RecyclerView rv_RecyclerView;
private Integer[] imgArray = {R.drawable.p1, R.drawable.p2, R.drawable.p3, R.drawable.p4, R.drawable.p5, R.drawable.p6, R.drawable.p7, R.drawable.p8, R.drawable.p9, R.drawable.p10};
private ArrayList<Integer> datas;
private RecyAdapter recyAdapter;
private LinearLayoutManager layoutManager;

private Handler mHandler = new Handler();
Runnable scrollRunnable = new Runnable() {
@Override
public void run() {
rv_RecyclerView.scrollBy(1, 0);
mHandler.postDelayed(scrollRunnable, 10);
}
};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
rv_RecyclerView = (RecyclerView) findViewById(R.id.rv_RecyclerView);

datas = new ArrayList<>();
for (int i = 0; i < imgArray.length; i++) {
datas.add(imgArray[i]);
}
recyAdapter = new RecyAdapter(this, datas);
layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
rv_RecyclerView.setLayoutManager(layoutManager);
rv_RecyclerView.setAdapter(recyAdapter);
recyAdapter.setOnItemClickListener(new RecyAdapter.OnItemClickListener() {
@Override
public void onItemClick(View view, int tag) {
Toast.makeText(MainActivity.this, "第" + tag + "张图片被点击了", Toast.LENGTH_SHORT).show();