2010.12.29(2)——— android GridView

2010.12.29(2)——— android 可伸缩的GridView

用 GridView 来实现九宫格布局并且一个格显示一个图片和一行字

[b]1、ImageAdapter[/b]

package com.huitu.shyj.adapter;

import android.content.Context;import android.view.Gravity;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.GridView;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;

import com.huitu.shyj.activity.R;

public class ImageAdapter extends BaseAdapter {   private Context mContext;

   public ImageAdapter(Context c)  {     mContext=c;  }

   public int getCount() {       return mThumbIds.length;  }

   public Object getItem(int position) {     return null;  }

   public long getItemId(int position) {     return 0; }

   public View getView(int position, View convertView, ViewGroup parent) {       LinearLayout layoutView;

        if(convertView==null){          layoutView=new LinearLayout(mContext);           layoutView.setOrientation(LinearLayout.VERTICAL);           

            ImageView iconView;           TextView iconText;

          iconView=new ImageView(mContext);            iconView.setLayoutParams(new GridView.LayoutParams(60,60));           iconView.setScaleType(ImageView.ScaleType.CENTER_CROP);               iconView.setImageResource(mThumbIds[position]);

         iconText=new TextView(mContext);         iconText.setText(mThumbStrings[position]);

          LinearLayout.LayoutParams relParams=new LinearLayout.LayoutParams(               LinearLayout.LayoutParams.WRAP_CONTENT,               LinearLayout.LayoutParams.FILL_PARENT         );

          layoutView.addView(iconView, relParams);          layoutView.addView(iconText, relParams);

            layoutView.setPadding(5, 10, 5, 10);          layoutView.setGravity(Gravity.CENTER);        }     else {            layoutView=(LinearLayout)convertView;        }       

        return layoutView;    }

   private Integer[] mThumbIds={        R.drawable.icon_1,R.drawable.icon_2,R.drawable.icon_3,        R.drawable.icon_4,R.drawable.icon_5,R.drawable.icon_6,        R.drawable.icon_7,R.drawable.icon_8,R.drawable.icon_9,        R.drawable.icon_10,R.drawable.icon_11,R.drawable.icon_12,     R.drawable.icon_13,R.drawable.icon_14,R.drawable.icon_15  };

  private Integer[] mThumbStrings={        R.string.app_act1,R.string.app_act2,R.string.app_act3,        R.string.app_act4,R.string.app_act5,R.string.app_act6,        R.string.app_act7,R.string.app_act8,R.string.app_act9,        R.string.app_act10,R.string.app_act11,R.string.app_act12,     R.string.app_act13,R.string.app_act14,R.string.app_act15  };}

[b]2、MainActivity[/b]

package com.huitu.shyj.activity;

import java.io.File;

import com.huitu.shyj.activity.R;import com.huitu.shyj.adapter.ImageAdapter;import com.huitu.shyj.util.SHYJTools;

import android.app.Activity;import android.content.Intent;import android.content.SharedPreferences;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.GridView;import android.widget.AdapterView.OnItemClickListener;

public class MainActivity extends Activity {    public static final String ROOTPATH="/sdcard/SHYJ";    public SharedPreferences settings;

  Intent intent;

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

        File file=new File(ROOTPATH);        if(!file.exists()){            file.mkdir();        }

        //未设置跳转至设置页面        settings=getSharedPreferences(MXiTongSZ.SETTING_INFOS ,0);        String strwebservice=settings.getString(MXiTongSZ.WEBSERVICE, "");        String strlat=settings.getString(MXiTongSZ.LAT, "");        String strlon=settings.getString(MXiTongSZ.LON, "");        if(strwebservice.equals("")||strlat.equals("")||strlon.equals("")){         intent=new Intent();         intent.setClass(MainActivity.this, MXiTongSZ.class);          startActivity(intent);        }

        SHYJTools.SHYJ_RECEIVE=settings.getInt(MXiTongSZ.RECEIVE, 0);

        setTitle(R.string.app_name);        GridView gridView=(GridView)findViewById(R.id.main);        gridView.setAdapter(new ImageAdapter(this));

        gridView.setOnItemClickListener(new OnItemClickListener(){            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,                   long arg3) {

                switch(arg2){             case 0:                   intent=new Intent();                 intent.setClass(MainActivity.this, MYuJingXX.class);                  startActivity(intent);                    break;

              case 1:                   intent=new Intent();                 intent.setClass(MainActivity.this, MYingJiXY.class);                  startActivity(intent);                                    break;

              case 2:                   intent=new Intent();                 intent.setClass(MainActivity.this, MYuJingCX.class);                  startActivity(intent);                                    break;

              case 3:                   intent=new Intent();                 intent.setClass(MainActivity.this, MYuQingJS.class);                  startActivity(intent);                                    break;

              case 4:                   intent=new Intent();                 intent.setClass(MainActivity.this, MShuiQingJS.class);                    startActivity(intent);                                    break;

              case 5:                   intent=new Intent();                 intent.setClass(MainActivity.this, MZhiBanXX.class);                  startActivity(intent);                                    break;

              case 6:                   intent=new Intent();                 intent.setClass(MainActivity.this, MYuAnCX.class);                    startActivity(intent);                                    break;

              case 7:                   intent=new Intent();                 intent.putExtra("AppType", "EPCX");                   intent.setClass(MainActivity.this, MQueryEvent.class);                    startActivity(intent);                                    break;

              case 8:                   intent=new Intent();                 intent.putExtra("AppType", "EVCX");                   intent.setClass(MainActivity.this, MQueryEvent.class);                    startActivity(intent);                                    break;

              case 9:                   intent=new Intent();                 intent.setClass(MainActivity.this, MTianQiYB.class);                  startActivity(intent);                                    break;

              case 10:                  intent=new Intent();                 intent.setClass(MainActivity.this, MPicActivity.class);                   intent.putExtra("AppType", "WXYT");                   startActivity(intent);                                    break;

              case 11:                  intent=new Intent();                 intent.setClass(MainActivity.this, MPicActivity.class);                   intent.putExtra("AppType", "TFLJ");                   startActivity(intent);                                    break;

              case 12:                  intent=new Intent();                 intent.setClass(MainActivity.this, MFangXunZZ.class);                 startActivity(intent);                                    break;

              case 13:                  intent=new Intent();                 intent.setClass(MainActivity.this, MXiTongSZ.class);                  startActivity(intent);                                    break;

              case 14:                  finish();                 break;

              default:                  finish();             }         }                   });    }}

[color=red]另一种方法不用自己写adapter[/color]
参考[url]http://blog.csdn.net/hellogv/archive/2009/09/18/4567095.aspx[/url]

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