Android 带有CustomCursorAdapter滚动的Listview不平滑
我正在使用CustomCursorAdapter创建列表视图。Listview滚动缓慢。这是我使用的代码Android 带有CustomCursorAdapter滚动的Listview不平滑,android,listview,cursor,android-cursoradapter,Android,Listview,Cursor,Android Cursoradapter,我正在使用CustomCursorAdapter创建列表视图。Listview滚动缓慢。这是我使用的代码 public class CustomCursorAdapter extends CursorAdapter { private ViewHolder holder=null; private Activity mContext=null; private ArrayList<Boolean> mCheckedList=null; private Button mCancel=
public class CustomCursorAdapter extends CursorAdapter {
private ViewHolder holder=null;
private Activity mContext=null;
private ArrayList<Boolean> mCheckedList=null;
private Button mCancel=null;
private Cursor mCursor = null;
private DatabaseHandler mDbHandler;
private int dStatus;
private LayoutInflater inflater;
public CustomCursorAdapter(Activity context) {
super(context, cursor);
this.mCursor = cursor;
this.mContext = context;
this.mDbHandler = new DatabaseHandler(context);
this.inflater = LayoutInflater.from(context);
}
@Override
public void bindView(View view, Context arg1, Cursor c) {
holder=(ViewHolder) view.getTag();
long duration = c.getLong(c.getColumnIndex(DatabaseHandler.DURATION));
holder.checkToSend.setTag(c.getPosition());
holder.editDitn.setTag(c.getPosition());
holder.pendingLayout.setTag(c.getPosition());
holder.name.setText(c.getString(c.getColumnIndex(DatabaseHandler.NAME)));
holder.worktype.setText(c.getString(c.getColumnIndex(DatabaseHandler.WORKTYPE)));
holder.comment.setText(c.getString(c.getColumnIndex(DatabaseHandler.COMMENT)));
int prio = c.getInt(c.getColumnIndex(DatabaseHandler.PRIORITY));
if(prio == 1)
holder.priority.setVisibility(View.VISIBLE);
else if(prio == 0)
holder.priority.setVisibility(View.INVISIBLE);
boolean check = mCheckedList.get(c.getPosition());
holder.checkToSend.setChecked(check);
onEnableOrDisable(true);
int dictStat = c.getInt(c.getColumnIndex(DatabaseHandler.STATUS));
if(c.getInt(c.getColumnIndex(DatabaseHandler.ISACTIVE))==1 || ((dictStat == 2 || dictStat == 3)&&!DMApplication.isEditMode()))
holder.checkToSend.setVisibility(View.GONE);
else
holder.checkToSend.setVisibility(View.VISIBLE);
switch (dictStat) {
case 1:
holder.status.setText("");
if(DMApplication.isOnEditState()&&DMApplication.getTabPos()==1)
holder.checkToSend.setVisibility(View.GONE);
else
holder.checkToSend.setVisibility(View.VISIBLE);
onEnableOrDisable(true);
break;
case 111:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_blue));
onEnableOrDisable(false);
holder.status.setText(mContext.getResources().getString(R.string.Property_sending));
break;
case 222:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_red));
holder.status.setText(mContext.getResources().getString(R.string.Property_Timeout));
onEnableOrDisable(true);
break;
case 333:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_blue));
holder.status.setText(mContext.getResources().getString(R.string.Property_Retrying));
onEnableOrDisable(false);
break;
case 444:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_red));
holder.status.setText(mContext.getResources().getString(R.string.Property_Conversion_Failed));
onEnableOrDisable(true);
break;
case 555:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_blue));
onEnableOrDisable(false);
holder.status.setText(mContext.getResources().getString(R.string.Property_Waiting_Send));
break;
case 20:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_red));
holder.status.setText(mContext.getResources().getString(R.string.property_sending_failed));
onEnableOrDisable(true);
break;
case 3:
holder.status.setText(mContext.getResources().getString(R.string.Property_Via_Email));
onEnableOrDisable(true);
break;
default:
holder.status.setText("");
onEnableOrDisable(true);
break;
}
int isflashair = c.getInt(c.getColumnIndex(DatabaseHandler.ISFLASHAIR));
String formattedDur = Utilities.getDurationInTimerFormat(duration);
if(isflashair == 0){
holder.imgflash.setVisibility(View.GONE);
holder.editDitn.setVisibility(View.VISIBLE);
holder.pendingLayout.setClickable(true);
if(dictStat == 2 || dictStat == 3){
holder.date.setText(DMApplication.getLocalizedDateAndTime(c.getString(c.getColumnIndex(DatabaseHandler.SENT_DATE)))+" "
+formattedDur);
}else{
holder.date.setText(DMApplication.getLocalizedDateAndTime(c.getString(c.getColumnIndex(DatabaseHandler.REC_END_DATE)))+" "
+formattedDur);
}
}else{
holder.imgflash.setVisibility(View.VISIBLE);
holder.editDitn.setVisibility(View.GONE);
holder.pendingLayout.setClickable(false);
if(dictStat == 2 || dictStat == 3){
holder.date.setText(DMApplication.getLocalizedDateAndTime(c.getString(c.getColumnIndex(DatabaseHandler.SENT_DATE))));
}else{
holder.date.setText(DMApplication.getLocalizedDateAndTime(c.getString(c.getColumnIndex(DatabaseHandler.REC_END_DATE))));
}
}
notifyDataSetChanged();
}
private void onEnableOrDisable(boolean enable)
{
if(DMApplication.getTabPos()==1)
{
if(enable)
{
holder.checkToSend.setEnabled(true);
holder.pendingLayout.setEnabled(true);
holder.editDitn.setEnabled(true);
}
else
{
holder.checkToSend.setVisibility(View.GONE);
holder.checkToSend.setEnabled(false);
holder.pendingLayout.setEnabled(false);
holder.editDitn.setEnabled(false);
}
}
}
@Override
public View newView(Context arg0,final Cursor cursor, ViewGroup parent) {
View retView = inflater.inflate(R.layout.tab_list_layout, parent, false);
holder = new ViewHolder();
holder.name = (TextView) retView.findViewById(R.id.text_tab_list_dictation_name);
holder.worktype = (TextView) retView.findViewById(R.id.text_tab_list_worktype);
holder.comment = (TextView) retView.findViewById(R.id.text_tab_list_comment);
holder.date = (TextView) retView.findViewById(R.id.text_tab_list_dictation_date);
holder.status = (TextView) retView.findViewById(R.id.text_tab_list_dictation_status);
holder.checkToSend = (CheckBox) retView.findViewById(R.id.chkToSend);
holder.priority = (ImageView) retView.findViewById(R.id.img_tab_list_priority);
holder.editDitn = (ImageButton) retView.findViewById(R.id.img_tab_list_edit_dictation);
holder.imgflash = (ImageView) retView.findViewById(R.id.img_is_flashair);
holder.pendingLayout=(RelativeLayout)retView.findViewById(R.id.relativeTabDictateDetails);
holder.pendingLayout.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int pos = (Integer) v.getTag();
Cursor c = (Cursor) getItem(pos);
// some code
}
});
holder.checkToSend.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int pos = (Integer) v.getTag();
CheckBox chk = (CheckBox) v;
// some code
}
});
holder.editDitn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int pos = (Integer) v.getTag();
Cursor c = (Cursor) getItem(pos);
// some code
}
});
retView.setTag(holder);
return retView;
}
static class ViewHolder{
TextView name = null;
TextView date = null;
TextView worktype = null;
TextView comment = null;
TextView status = null;
CheckBox checkToSend = null;
ImageView priority = null;
RelativeLayout pendingLayout=null;
ImageButton editDitn = null;
ImageView imgflash = null;
}
}
公共类CustomCursorAdapter扩展了CursorAdapter{
私有ViewHolder=null;
私有活动mContext=null;
private ArrayList mCheckedList=null;
专用按钮mCancel=null;
私有游标mCursor=null;
私有数据库处理程序mDbHandler;
私有数据状态;
私人充气机;
公共CustomCursorAdapter(活动上下文){
超级(上下文、游标);
this.mCursor=游标;
this.mContext=上下文;
this.mDbHandler=新的DatabaseHandler(上下文);
this.inflater=layoutiner.from(上下文);
}
@凌驾
公共void bindView(视图,上下文arg1,光标c){
holder=(ViewHolder)view.getTag();
long duration=c.getLong(c.getColumnIndex(DatabaseHandler.duration));
holder.checkToSend.setTag(c.getPosition());
holder.editDitn.setTag(c.getPosition());
holder.pendingLayout.setTag(c.getPosition());
holder.name.setText(c.getString(c.getColumnIndex(DatabaseHandler.name));
holder.worktype.setText(c.getString(c.getColumnIndex(DatabaseHandler.worktype));
setText(c.getString(c.getColumnIndex(DatabaseHandler.comment));
intprio=c.getInt(c.getColumnIndex(DatabaseHandler.PRIORITY));
如果(prio==1)
holder.priority.setVisibility(视图可见);
else if(prio==0)
holder.priority.setVisibility(视图不可见);
布尔检查=mCheckedList.get(c.getPosition());
holder.checkToSend.setChecked(检查);
onenableordinable(真);
int dictStat=c.getInt(c.getColumnIndex(DatabaseHandler.STATUS));
if(c.getInt(c.getColumnIndex(DatabaseHandler.ISACTIVE))=1 | |((dictStat==2 | | dictStat==3)和&!DMApplication.isEditMode())
holder.checkToSend.setVisibility(View.GONE);
其他的
holder.checkToSend.setVisibility(视图可见);
开关(dictStat){
案例1:
holder.status.setText(“”);
if(DMApplication.isOnEditState()&&DMApplication.getTabPos()==1)
holder.checkToSend.setVisibility(View.GONE);
其他的
holder.checkToSend.setVisibility(视图可见);
onenableordinable(真);
打破
案例111:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_blue));
onEnableOrDisable(假);
holder.status.setText(mContext.getResources().getString(R.string.Property_sending));
打破
案例222:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_red));
holder.status.setText(mContext.getResources().getString(R.string.Property_Timeout));
onenableordinable(真);
打破
案例333:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_blue));
holder.status.setText(mContext.getResources().getString(R.string.Property_重试));
onEnableOrDisable(假);
打破
案例444:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_red));
holder.status.setText(mContext.getResources().getString(R.string.Property_转换_失败));
onenableordinable(真);
打破
案例555:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_blue));
onEnableOrDisable(假);
holder.status.setText(mContext.getResources().getString(R.string.Property_Waiting_Send));
打破
案例20:
holder.status.setTextColor(mContext.getResources().getColor(R.color.status_red));
holder.status.setText(mContext.getResources().getString(R.string.property_sending_failed));
onenableordinable(真);
打破
案例3:
holder.status.setText(mContext.getResources().getString(R.string.Property通过电子邮件));
onenableordinable(真);
打破
违约:
holder.status.setText(“”);
onenableordinable(真);
打破
}
int-isflashair=c.getInt(c.getColumnIndex(DatabaseHandler.isflashair));
String formattedDur=Utilities.GetDurationIndimerFormat(持续时间);
如果(isflashair==0){
holder.imgflash.setVisibility(View.GONE);
holder.EdittN.setVisibility(视图可见);
支架。悬挂布局。可点击设置(真);
if(dictStat==2 | | dictStat==3){
holder.date.setText(DMApplication.GetLocalizedDataAndTime(c.getString(c.getColumnIndex(DatabaseHandler.SENT_date)))+“”
+形成的dur);
}否则{
holder.date.setText(DMApplication.GetLocalizedDataAndTime(c.getString(c.getColumnIndex(DatabaseHandler.REC\u END\u date))+“”
+形成的dur);
}
}否则{
holder.imgflash.setVisibility(View.VISIBLE);
holder.editDitn.setVisibility(View.GONE);
支架。悬挂布局。可点击设置(错误);
if(dictStat==2 | | dictStat==3){
holder.date.setText(DMApplication.getLocalizedDataAndTime(c.getString(c.getColumnIndex(DatabaseHandler.SENT_date)));
}否则{
holder.date.setText(DMApplication.getLocalizedDataAndTime(c.getString(c.getColumnIndex(DatabaseHandler.REC_END_date)));
}
}
notifyDataSetChanged();
}
私有void onEnableOrDisable(布尔启用)
{
if(DMApplication.getTabPos()==1)
{
如果(启用)
{
holder.checkToSend.setEnabled(真);
holder.pendingLayout.setEnabled(真);
holder.editDitn.setEnabled(真);
}
其他的
{
holder.checkToSend.setVisibility(View.GONE);
holder.checkToSend.setEnabled(假);
holder.pendingLayout.setEnabled(假);
holder.editDitn.setEnabled(假);
}
}
}
@凌驾
公共视图newView(上下文arg0,最终光标,视图组父级){
视图retView=充气机。充气(R.layout.tab\u list\u布局,父级,false);
持有者=
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
View retView = convertView;
if (convertView == null) {
retView = inflater.inflate(R.layout.tab_list_layout, parent, false);
holder = new ViewHolder();
holder.name = (TextView) retView.findViewById(R.id.text_tab_list_dictation_name);
holder.worktype = (TextView) retView.findViewById(R.id.text_tab_list_worktype);
holder.comment = (TextView) retView.findViewById(R.id.text_tab_list_comment);
holder.date = (TextView) retView.findViewById(R.id.text_tab_list_dictation_date);
holder.status = (TextView) retView.findViewById(R.id.text_tab_list_dictation_status);
holder.checkToSend = (CheckBox) retView.findViewById(R.id.chkToSend);
holder.priority = (ImageView) retView.findViewById(R.id.img_tab_list_priority);
holder.editDitn = (ImageButton) retView.findViewById(R.id.img_tab_list_edit_dictation);
holder.imgflash = (ImageView) retView.findViewById(R.id.img_is_flashair);
holder.pendingLayout=(RelativeLayout)retView.findViewById(R.id.relativeTabDictateDetails);
holder.pendingLayout.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int pos = (Integer) v.getTag();
Cursor c = (Cursor) getItem(pos);
// some code
}
});
holder.checkToSend.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int pos = (Integer) v.getTag();
CheckBox chk = (CheckBox) v;
// some code
}
});
holder.editDitn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int pos = (Integer) v.getTag();
Cursor c = (Cursor) getItem(pos);
// some code
}
});
retView.setTag(holder);
}
else {
holder = (ViewHolder) retView.getTag();
}
return retView ;
}