我的gridview配置如下:
[code="xml"]
android:id="@+id/gridApps"
android:paddingLeft="20.0dip"
android:paddingTop="10.0dip"
android:paddingRight="20.0dip"
android:paddingBottom="10.0dip"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:horizontalSpacing="20.0dip"
android:verticalSpacing="25dip"
android:numColumns="auto_fit"
android:layout_weight="1.0"
android:alwaysDrawnWithCache="false"
>
[/code]
android端,引用的adapter中的getview方法的代码如下:
[code="java"]
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHorder horder;
TestClass.println("position",String.valueOf(position)); //主要看这里,等下的打印信息可以看到
if (convertView == null) {
horder = new ViewHorder();
convertView = LayoutInflater.from(context)
.inflate(R.layout.application_layout, null);
horder.app_icon = (ImageView) convertView.findViewById(R.id.app_icon);
horder.app_title = (TextView)convertView.findViewById(R.id.app_title);
convertView.setTag(horder);
}else{
horder = (ViewHorder)convertView.getTag();
}
ResolveInfo res = resInfo.get(position);
horder.app_icon .setImageDrawable(res.loadIcon(packageManager));
horder.app_title .setText(res.loadLabel(packageManager).toString());
return convertView;
}
[/code]
logcat打印代码如下:
[code="java"]
05-09 02:33:00.978: INFO/zkli(8504): =====position====0====
05-09 02:33:01.013: INFO/zkli(8504): =====position====0====
05-09 02:33:01.023: INFO/zkli(8504): =====position====0====
05-09 02:33:01.033: INFO/zkli(8504): =====position====1====
05-09 02:33:01.043: INFO/zkli(8504): =====position====2====
05-09 02:33:01.053: INFO/zkli(8504): =====position====3====
05-09 02:33:01.063: INFO/zkli(8504): =====position====4====
05-09 02:33:01.073: INFO/zkli(8504): =====position====5====
05-09 02:33:01.083: INFO/zkli(8504): =====position====6====
05-09 02:33:01.093: INFO/zkli(8504): =====position====7====
05-09 02:33:01.103: INFO/zkli(8504): =====position====8====
05-09 02:33:01.113: INFO/zkli(8504): =====position====9====
05-09 02:33:01.123: INFO/zkli(8504): =====position====10====
05-09 02:33:01.128: INFO/zkli(8504): =====position====11====
05-09 02:33:01.138: INFO/zkli(8504): =====position====12====
05-09 02:33:01.163: INFO/zkli(8504): =====position====13====
05-09 02:33:01.178: INFO/zkli(8504): =====position====14====
05-09 02:33:01.193: INFO/zkli(8504): =====position====15====
05-09 02:33:01.203: INFO/zkli(8504): =====position====16====
05-09 02:33:01.213: INFO/zkli(8504): =====position====17====
05-09 02:33:01.223: INFO/zkli(8504): =====position====18====
05-09 02:33:01.228: INFO/zkli(8504): =====position====19====
05-09 02:33:01.238: INFO/zkli(8504): =====position====20====
05-09 02:33:01.248: INFO/zkli(8504): =====position====21====
05-09 02:33:01.253: INFO/zkli(8504): =====position====22====
05-09 02:33:01.268: INFO/zkli(8504): =====position====23====
05-09 02:33:01.273: INFO/zkli(8504): =====position====24====
05-09 02:33:01.283: INFO/zkli(8504): =====position====25====
05-09 02:33:01.293: INFO/zkli(8504): =====position====26====
05-09 02:33:01.303: INFO/zkli(8504): =====position====27====
[/code]
为什么第一次进入列表的时候会打印3此值为0,就是说运行了3次值为0 ,对结果会造成什么影响