Android GridView的使用

Android GridView就是先將控件橫向顯示，然後縱向顯示

效果如上所示

先看一下GridView的布局文件

1. <?xml version="1.0" encoding="utf-8"?>
3. <GridView
4. xmlns:android="http://schemas.android.com/apk/res/android"
5. android:id="@+id/brainheroall"
6. android:background="#FFeff1ef"
7. android:layout_width="fill_parent"
8. android:layout_height="wrap_content"
9. android:numColumns="auto_fit"
10. android:verticalSpacing="10dp"
11. android:horizontalSpacing="10dp"
12. android:columnWidth="90dp"
13. android:stretchMode="columnWidth"
14. android:gravity="center"
15. />

這是如何顯示GridView，下面的xml文件是GridView裡面如何顯示

1. <?xml version="1.0" encoding="utf-8"?>
2. <RelativeLayout
3. xmlns:android="http://schemas.android.com/apk/res/android"
4. android:layout_height="wrap_content"
5. android:paddingBottom="4dip" android:layout_width="fill_parent">
6. <ImageView
7. android:layout_height="wrap_content"
8. android:id="@+id/ItemImage"
9. android:layout_width="wrap_content"
10. android:layout_centerHorizontal="true">
11. </ImageView>
12. <TextView
13. android:layout_width="wrap_content"
14. android:layout_below="@+id/ItemImage"
15. android:layout_height="wrap_content"
16. android:text=""
17. android:textColor="#FF000000"
18. android:layout_centerHorizontal="true"
19. android:id="@+id/ItemText">
20. </TextView>
21. </RelativeLayout>

下面是Java代碼如何使用GridView

1. package view;
3. import java.util.ArrayList;
4. import java.util.HashMap;
6. import model.HeroSimpleInfo;
7. import service.ObtainInfo;
8. import android.app.Activity;
9. import android.content.Intent;
10. import android.os.Bundle;
11. import android.view.KeyEvent;
12. import android.view.View;
13. import android.widget.AdapterView;
14. import android.widget.AdapterView.OnItemClickListener;
15. import android.widget.GridView;
16. import android.widget.SimpleAdapter;
17. import android.widget.Toast;
19. import com.zhychneg.dota.R;
21. public class BrainHeroActivity extends Activity implements OnItemClickListener{
23. GridView gv=null;
24. long exitTime=0;
25. HeroSimpleInfo []heros=null;
26. @Override
27. protected void onCreate(Bundle savedInstanceState) {
28. // TODO Auto-generated method stub
29. super.onCreate(savedInstanceState);
30. setContentView(R.layout.brainheroall);
31. gv=(GridView) findViewById(R.id.brainheroall);
34. ArrayList<HashMap<String,Object>> al=new ArrayList<HashMap<String,Object>>();
37. heros=ObtainInfo.getBrainHeroSimpleInfo();
40. for(int i=0;i<heros.length;i++)
41. {
42. HashMap<String, Object> map = new HashMap<String, Object>();
44. map.put("icon", heros[i].getRes());//添加圖像資源的ID
45. map.put("name", heros[i].getName());//按序號做ItemText
46. al.add(map);
47. }
49. SimpleAdapter sa=new SimpleAdapter(this,al,R.layout.gridview_layout,new String[]{"icon","name"},new int[]{R.id.ItemImage,R.id.ItemText});
50. gv.setAdapter(sa);
51. gv.setOnItemClickListener(this);
58. }
60. public void onItemClick(AdapterView<?> parent, View view, int position,
61. long id) {
63. Intent intent =new Intent(this,AboutHeroActivty.class);
64. intent.putExtra("HERO", heros[position]);
65. this.startActivity(intent);
67. }
70. }