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Merge pull request #3768 from NativeScript/ios-cells-background

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FIX: Make list view cells transparent
This commit is contained in:
Alexander Vakrilov
2017-03-10 13:19:22 +02:00
committed by GitHub
parent db218bb040 d9655c96a1
commit 5ed78aa521
1 changed files with 17 additions and 3 deletions
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20
tns-core-modules/ui/list-view/list-view.ios.ts
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@ -17,6 +17,20 @@ const DEFAULT_HEIGHT = 44;
const infinity = layout.makeMeasureSpec(0, layout.UNSPECIFIED); const infinity = layout.makeMeasureSpec(0, layout.UNSPECIFIED);
class ListViewCell extends UITableViewCell { class ListViewCell extends UITableViewCell {
public static initWithEmptyBackground(): ListViewCell {
const cell = <ListViewCell>ListViewCell.new();
// Clear background by default - this will make cells transparent
cell.backgroundColor = null;
return cell;
}
initWithStyleReuseIdentifier(style: UITableViewCellStyle, reuseIdentifier: string): this {
const cell = <this>super.initWithStyleReuseIdentifier(style, reuseIdentifier);
// Clear background by default - this will make cells transparent
cell.backgroundColor = null;
return cell;
}
public willMoveToSuperview(newSuperview: UIView): void { public willMoveToSuperview(newSuperview: UIView): void {
let parent = <ListView>(this.view ? this.view.parent : null); let parent = <ListView>(this.view ? this.view.parent : null);
@ -62,7 +76,7 @@ class DataSource extends NSObject implements UITableViewDataSource {
let cell: ListViewCell; let cell: ListViewCell;
if (owner) { if (owner) {
let template = owner._getItemTemplate(indexPath.row); let template = owner._getItemTemplate(indexPath.row);
cell = <ListViewCell>(tableView.dequeueReusableCellWithIdentifier(template.key) || ListViewCell.new()); cell = <ListViewCell>(tableView.dequeueReusableCellWithIdentifier(template.key) || ListViewCell.initWithEmptyBackground());
owner._prepareCell(cell, indexPath); owner._prepareCell(cell, indexPath);
let cellView: View = cell.view; let cellView: View = cell.view;
@ -76,7 +90,7 @@ class DataSource extends NSObject implements UITableViewDataSource {
} }
} }
else { else {
cell = <ListViewCell>ListViewCell.new(); cell = <ListViewCell>ListViewCell.initWithEmptyBackground();
} }
return cell; return cell;
} }
@ -134,7 +148,7 @@ class UITableViewDelegateImpl extends NSObject implements UITableViewDelegate {
const template = owner._getItemTemplate(indexPath.row); const template = owner._getItemTemplate(indexPath.row);
let cell = this._measureCellMap.get(template.key); let cell = this._measureCellMap.get(template.key);
if (!cell) { if (!cell) {
cell = (<any>tableView.dequeueReusableCellWithIdentifier(template.key)) || ListViewCell.new(); cell = (<any>tableView.dequeueReusableCellWithIdentifier(template.key)) || ListViewCell.initWithEmptyBackground();
this._measureCellMap.set(template.key, cell); this._measureCellMap.set(template.key, cell);
} }