Android开发仿微信发朋友圈浏览图片效果实例代码

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这篇文章主要介绍了Android仿微信发朋友圈浏览图片效果的相关资料,需要的朋友可以参考下

先看一下效果吧：

下面就来说一下具体怎么实现的：

实现思路

1.首先我们要获取数据源，数据源就是我们的每条说说（包括姓名、标题、图片数组）
2.自定义适配器（ListView嵌套着GridView）
3.图片点击浏览图片（Fragment+ViewPager）

具体实现

1.初始化数据源，设置适配器，看一下代码：

public class MyActivity extends Activity {
  /*图片显示列表*/
  private ListView listView;
  /*图片URL数组*/
  private List<ContentBean> contentBeans;
  /*说说适配器*/
  private MyAdapter adapter;

  /**
   * Called when the activity is first created.
   */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    initData();
    initViews();
  }

  /**
   * 初始化数据
   */
  private void initData(){
    contentBeans = new ArrayList<ContentBean>();
    ArrayList<String> imgUrls1 = new ArrayList<String>();
    imgUrls1.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    ContentBean cb1 = new ContentBean(1,"java","Sun Microsystems",imgUrls1);
    contentBeans.add(cb1);

    ArrayList<String> imgUrls2 = new ArrayList<String>();
    imgUrls2.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    imgUrls2.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    imgUrls2.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    ContentBean cb2 = new ContentBean(2,"OC","Stepstone",imgUrls2);
    contentBeans.add(cb2);

    ArrayList<String> imgUrls3 = new ArrayList<String>();
    imgUrls3.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    imgUrls3.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    imgUrls3.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    imgUrls3.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    imgUrls3.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    imgUrls3.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    imgUrls3.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    imgUrls3.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    imgUrls3.add("http://7xojuc.com1.z0.glb.clouddn.com/110H2E40-6.jpg?attname=&e=1448288962&token=KDsCqUAWz3P-YT6In6oPnT56Eh2cig4zgQd12SJ_:AlTjfYD9SBFOdB4jmmZuKXAMOp8");
    ContentBean cb3 = new ContentBean(3,"python","Guido van Rossum",imgUrls3);
    contentBeans.add(cb3);
  }


  private void initViews(){
    listView = (ListView) findViewById(R.id.lv_my);
    adapter = new MyAdapter(MyActivity.this,contentBeans);
    listView.setAdapter(adapter);
  }
}

这里面的图片是我上传到七牛的网络图片，加载图片是用ImageLoader,下面也有具体的ImageLoader配置。
2.看一下适配器内容
在说说列表适配器中去设置图片的适配器，图片的GridView是重写了一个不能滑动的GridView，重写一下OnMeasure();

public class MyAdapter extends BaseAdapter {

  private Context context;
  private List<ContentBean> data;

  public MyAdapter(Context context, List<ContentBean> data) {
    this.context = context;
    this.data = data;
  }

  @Override
  public int getCount() {
    return data.size();
  }

  @Override
  public Object getItem(int i) {
    return data.get(i);
  }

  @Override
  public long getItemId(int i) {
    return i;
  }

  @Override
  public View getView(int i, View view, ViewGroup viewGroup) {
    ViewHolder holder;
    if (view == null) {
      holder = new ViewHolder();
      view = View.inflate(context, R.layout.item, null);
      holder.gridView = (NoScrollGridView) view.findViewById(R.id.gridview);
      holder.tvName = (TextView) view.findViewById(R.id.tv_name);
      holder.tvTitle = (TextView) view.findViewById(R.id.tv_title);
      view.setTag(holder);
    } else {
      holder = (ViewHolder) view.getTag();
    }

    final ContentBean bean = data.get(i);

    holder.tvName.setText(bean.getName());
    holder.tvTitle.setText(bean.getTitle());

    if (data != null && data.size() > 0) {
      holder.gridView.setAdapter(new ImageGridAdapter(context, bean.getImgUrls()));
    }
    /**
     * 图片列表点击事件
     */
    holder.gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
        Intent intent = new Intent(context, ImagePagerActivity.class);
        intent.putExtra(ImagePagerActivity.EXTRA_IMAGE_URLS, (Serializable) bean.getImgUrls());
        intent.putExtra(ImagePagerActivity.EXTRA_IMAGE_INDEX, i);
        context.startActivity(intent);
      }
    });

    return view;
  }

  class ViewHolder {
    TextView tvName, tvTitle;
    NoScrollGridView gridView;
  }
}

3.然后就是图片浏览，这个网上也有好多的Demo，也有详细的讲解，直接拽过来用就可以了，下面的图片数量是监听setOnPageChangeListener（）来改变下面的图片索引值

/**
 * 图片查看器
 */
public class ImagePagerActivity extends FragmentActivity {
  private static final String STATE_POSITION = "STATE_POSITION";
  public static final String EXTRA_IMAGE_INDEX = "image_index"; 
  public static final String EXTRA_IMAGE_URLS = "image_urls";

  private HackyViewPager mPager;
  private int pagerPosition;
  private TextView indicator;

  @Override 
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.image_detail_pager);

    pagerPosition = getIntent().getIntExtra(EXTRA_IMAGE_INDEX, 0);
    ArrayList<String> urls = getIntent().getStringArrayListExtra(EXTRA_IMAGE_URLS);

    mPager = (HackyViewPager) findViewB

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Android开发仿微信发朋友圈浏览图片效果实例代码

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