Listview 多条目展示_MainActivity

package com.example.day0906;

import com.nostra13.universalimageloader.core.ImageLoader;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends Activity {

 private ListView lv;
 String mPath="https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10";
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  lv = (ListView) findViewById(R.id.lv);
  MyAsyncTask  myHttpTools=new MyAsyncTask(MainActivity.this,mPath,"GET",lv);
        myHttpTools.execute();
 }

  //清除缓存按钮
    public void clearCache(){
        //清除缓存的方法
        ImageLoader.getInstance().clearDiskCache();//清除磁盘缓存
        ImageLoader.getInstance().clearMemoryCache();//清除内存缓存
        Toast.makeText(this, "清除缓存成功", Toast.LENGTH_SHORT).show();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        clearCache();

}
}