在Android app中实现九(n)宫格图片连续滑动效果

　大家看了效果图之后就会有一种似曾相识的感觉。这就对了，因为这种效果在新闻客户端中比较常见，当然也可以用于其他的应用当中。

　　下面就让我们开始实现过程。

　　先熟悉下MainActivity.java的代码，如下：

package com.palace.image.activity;

import com.image.loader.core.DisplayImageOptions;
import com.palace.image.R;
import com.palace.image.adapter.GridViewAdapter;

import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.AdapterView.OnItemClickListener;

/**
 * Android实现宫格图片连续滑动效果
 * @Description: Android实现宫格图片连续滑动效果

 * @File: MainActivity.java

 * @Package com.palace.image.activity

 * @Author Hanyonglu

 * @Date 2012-09-19 下午05:57:34

 * @Version V1.0
 */
public class MainActivity extends BaseActivity {
  private GridView gridView = null;
  private String[] imageValues = null;
  private String[] titleValues = null;
  private DisplayImageOptions options;
  
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main_activity);
    
    // 初始化
    initViews();
  }
  
  /**
   * 初始化
   */
  private void initViews(){
    titleValues = getResources().getStringArray(R.array.news_title);
    imageValues = getResources().getStringArray(R.array.small_images);
    options = new DisplayImageOptions.Builder()
      .showStubImage(R.drawable.ic_image_load)
      .showImageForEmptyUri(R.drawable.ic_image_load)
      .cacheInMemory()
      .cacheOnDisc()
      .build();
    
    gridView = (GridView) findViewById(R.id.gridview);
    gridView.setSelector(new ColorDrawable(Color.TRANSPARENT));
    gridView.setAdapter(new GridViewAdapter(
        this, imageValues,titleValues,imageLoader,options));
    gridView.setOnItemClickListener(itemOnClickListener);
  }
  
  // GridView单击项事件监听器
  private OnItemClickListener itemOnClickListener = new OnItemClickListener() {
    public void onItemClick(AdapterView<?> parent, View v,
        int position, long id) {
      Intent intent = new Intent();
      intent.setClass(MainActivity.this, ImageActivity.class);
      intent.putExtra("item_index", position);
      startActivity(intent);
    }
  };
  
  @Override
  protected void onStop() {
    super.onStop();
    imageLoader.stop();
  }
  
  @Override
  protected void onDestroy() {
    // TODO Auto-generated method stub
    super.onDestroy();
    imageLoader.stop();
  }
}								 
 2/3   首页 上一页 1 2 3 下一页 尾页