Question

android 在Gallery下面加入导航条视图，当拖动Gallery时，导航条根据当前图片在Gallery中的位置而显示进度

求源码，867245008@qq.com

Answer 1

Gallery是一个类似于ListView的视图可以实现左右缓慢拖动屏幕切换图片的功能

package com.test;

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

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.text.Layout;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.LinearLayout.LayoutParams;

public class SpinnerActivity extends Activity {
private Gallery gallery;
private List<Bitmap> list = new ArrayList<Bitmap>();;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
gallery = (Gallery) findViewById(R.id.images);
init();
gallery.setAdapter(new MyAdapter());

}

private void init() {
// 通过图片工厂得到图片对象，并加入到集合中
list.add(BitmapFactory.decodeResource(getResources(), R.drawable.icon));
list.add(BitmapFactory.decodeResource(getResources(), R.drawable.icon));
list.add(BitmapFactory.decodeResource(getResources(), R.drawable.icon));
list.add(BitmapFactory.decodeResource(getResources(), R.drawable.icon));
list.add(BitmapFactory.decodeResource(getResources(), R.drawable.icon));

}

class MyAdapter extends BaseAdapter