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Bug 850602 - Update empty view state when dataset changes (r=mfinkle)

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This commit is contained in:
Lucas Rocha 2013-03-15 09:48:12 +00:00
parent 771d3ede37
commit 42c9715d22
1 changed files with 37 additions and 1 deletions
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38
mobile/android/base/widget/TwoWayView.java
View File

@ -213,6 +213,8 @@ public class TwoWayView extends AdapterView<ListAdapter> implements
private OnScrollListener mOnScrollListener;
private int mLastScrollState;
private View mEmptyView;
public interface OnScrollListener {
/**
@ -776,6 +778,7 @@ public class TwoWayView extends AdapterView<ListAdapter> implements
checkSelectionChanged();
}
updateEmptyStatus();
requestLayout();
}
@ -4612,6 +4615,38 @@ public class TwoWayView extends AdapterView<ListAdapter> implements
}
}
@Override
public void setEmptyView(View emptyView) {
super.setEmptyView(emptyView);
mEmptyView = emptyView;
updateEmptyStatus();
}
private void updateEmptyStatus() {
boolean isEmpty = mAdapter == null || mAdapter.isEmpty();
if (isEmpty) {
if (mEmptyView != null) {
mEmptyView.setVisibility(View.VISIBLE);
setVisibility(View.GONE);
} else {
// If the caller just removed our empty view, make sure the list
// view is visible
setVisibility(View.VISIBLE);
}
// We are now GONE, so pending layouts will not be dispatched.
// Force one here to make sure that the state of the list matches
// the state of the adapter.
if (mDataChanged) {
this.onLayout(false, getLeft(), getTop(), getRight(), getBottom());
}
} else {
if (mEmptyView != null)
mEmptyView.setVisibility(View.GONE);
setVisibility(View.VISIBLE);
}
}
private class AdapterDataSetObserver extends DataSetObserver {
private Parcelable mInstanceState = null;
@ -4630,7 +4665,7 @@ public class TwoWayView extends AdapterView<ListAdapter> implements
} else {
rememberSyncState();
}
updateEmptyStatus();
requestLayout();
}
@ -4656,6 +4691,7 @@ public class TwoWayView extends AdapterView<ListAdapter> implements
mNeedSync = false;
updateEmptyStatus();
requestLayout();
}
}