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我需要在屏幕旋轉後保存ID。 (Android 3.2+)。 Deatils: 在清單:旋轉後保留視圖ID
android:configChanges="orientation|screenSize"
在活動時間:
@Override
public void onConfigurationChanged(Configuration newConfig) {
// TODO Auto-generated method stub
super.onConfigurationChanged(newConfig);
initializeAnimation(true);
if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT) {
refreshView(true);
} else if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
refreshView(false);
}
}
refreshView方法獲取ListView的集合或其他類GridView的收集和投入ViewFlipper。用戶可以觸摸列表或網格視圖中的元素,並開始在AsyncTask中和所選元素顯示的進度條中下載。
型號:
public List<ListView> getListViews(Context c) {
listViews.clear();
Iterator<List<Map<String, String>>> iter = arr.iterator();
while (iter.hasNext()) {
SimpleAdapter a = new SimpleAdapter(c, iter.next(), R.layout.vertical_list_view_item, new String[] { MONTH, IMAGE, DESCRIPTION}, new int[] { R.id.txtMonthV , R.id.imgV, R.id.txtDecriptionV});
ListView lv = new ListView(c);
lv.setDivider(null);
lv.setDividerHeight(0);
lv.setAdapter(a);
listViews.add(lv);
}
return listViews;
}
public List<GridView> getGridViews(Context c){
List<GridView> gridViews = new ArrayList<GridView>();
Iterator<List<Map<String, String>>> iter = arr.iterator();
while (iter.hasNext()) {
SimpleAdapter a = new SimpleAdapter(c, iter.next(), R.layout.horizontal_list_view_item , new String[] { MONTH, IMAGE/*, DESCRIPTION*/}, new int[] { R.id.txtMonthH, R.id.imgH/*, R.id.txtDescriptionH*/ });
GridView gv = new GridView(c);
gv.setHorizontalSpacing(15);
gv.setVerticalSpacing(15);
gv.setNumColumns(6);
gv.setAdapter(a);
gridViews.add(gv);
}
return gridViews;
}
位指示:
public View currentView;
public View getCurrentPressedView(){
return currentView;
}
public void setCurrentPressedView(View v){
currentView = v;
}
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
if (arg0 instanceof ListView) {
/*....*/
setCurrentPressedView(arg1);
//Start download here
} else if (arg0 instanceof GridView) {
/*...*/
setCurrentPressedView(arg1);
//Start download here
}
}
在異步任務:
View view;
ProgressBar proBar;
@Override
protected void onPreExecute() {
super.onPreExecute();
view = getCurrentPressedView();
proBar = (ProgressBar) view.findViewById(R.id.progress);
proBar.setVisibility(View.VISIBLE);
///.....
@Override
protected void onProgressUpdate(Integer... values) {
mProDialog.setProgress(values[0]);
proBar.setVisibility(View.VISIBLE);
super.onProgressUpdate(values);
}
在vertical_list_view_item和horizontal_list_view_item進度條具有相同的ID。 但是當屏幕旋轉時,ID改變,我無法控制進度條。有人能幫助我嗎? Thx
不,編號在屏幕旋轉後發生變化,因爲我們獲得了其他網格視圖或列表視圖集合。 –