Android零基础入门第49节：AdapterViewFlipper图片轮播

<?xml version="1.0" encoding="utf-8" ?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<AdapterViewFlipper
android:id="@+id/flipper"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:flipInterval="5000"
android:layout_alignParentTop="true"/>
<Button
android:id="@+id/prev_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:text="上一个"/>
<Button
android:id="@+id/next_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="下一个"/>
<Button
android:id="@+id/auto_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="自动播放"/>
</RelativeLayout>

package com.jinyu.cqkxzsxy.android.listviewsample.adapter;import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;/**
* @创建者 鑫鱻
* @描述 Android零基础入门到精通系列教程，欢迎关注微信公众号ShareExpert
*/
public class MyFilpperAdapter extends BaseAdapter {
private Context mContext = null;
private int[] mImageIds = null; public MyFilpperAdapter(Context context, int[] imageIds) {
this.mContext = context;
this.mImageIds = imageIds;
} @Override
public int getCount() {
return mImageIds.length;
} @Override
public Object getItem(int position) {
return position;
} @Override
public long getItemId(int position) {
return position;
} // 该方法返回的View代表了每个列表项
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView = null;
if(null == convertView) {
// 创建一个ImageView
imageView = new ImageView(mContext);
// 设置ImageView的缩放类型
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
// 为imageView设置布局参数
imageView.setLayoutParams(new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
convertView = imageView;
} else {
imageView = (ImageView) convertView;
} // 给ImageView设置图片资源
imageView.setImageResource(mImageIds[position]); return imageView;
}
}

package com.jinyu.cqkxzsxy.android.listviewsample;import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterViewFlipper;
import android.widget.Button;import com.jinyu.cqkxzsxy.android.listviewsample.adapter.MyFilpperAdapter;public class AdapterViewFilperActivity extends AppCompatActivity implements View.OnClickListener {
private AdapterViewFlipper mFlipper = null;
private Button mPrevBtn = null;
private Button mNextBtn = null;
private Button mAutoBtn = null;
private int[] mImageIds = {
R.drawable.image_01,R.drawable.image_02,R.drawable.image_03,
R.drawable.image_04,R.drawable.image_05,R.drawable.image_06,
R.drawable.image_07,R.drawable.image_08,R.drawable.image_09
}; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.adapterview_filpper_layout); // 获取界面组件
mFlipper = (AdapterViewFlipper) findViewById(R.id.flipper);
mPrevBtn = (Button) findViewById(R.id.prev_btn);
mNextBtn = (Button) findViewById(R.id.next_btn);
mAutoBtn = (Button) findViewById(R.id.auto_btn); // 为AdapterViewFlipper设置Adapter
MyFilpperAdapter adapter = new MyFilpperAdapter(this, mImageIds);
mFlipper.setAdapter(adapter); // 为三个按钮设置点击事件监听器
mPrevBtn.setOnClickListener(this);
mNextBtn.setOnClickListener(this);
mAutoBtn.setOnClickListener(this);
} @Override
public void onClick(View view) {
switch (view.getId()){
case R.id.prev_btn:
// 显示上一个组件
mFlipper.showPrevious();
// 停止自动播放
mFlipper.stopFlipping();
break;
case R.id.next_btn:
// 显示下一个组件。
mFlipper.showNext();
// 停止自动播放
mFlipper.stopFlipping();
break;
case R.id.auto_btn:
// 开始自动播放
mFlipper.startFlipping();
break;
default:
break;
}
}
}