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add support for ViewGroups with custom onLayout()

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A custom GtkLayoutManager is set to these objects, which calls into the
java handlers when measure or layout is requested.

Androids onMeasure method is quite different from GTKs measure method,
because Android already defines the final size during onMeasure.
Therefore, we call onMeasure from GTKs allocate callback instead of the
measure callback.
This commit is contained in:
Julian Winkler
2023-08-22 14:18:33 +02:00
parent 4434de4a58
commit ca975a0e7c
8 changed files with 268 additions and 11 deletions
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13
src/api-impl/android/view/ViewGroup.java
View File

@@ -183,6 +183,19 @@ public class ViewGroup extends View implements ViewParent, ViewManager {
return MeasureSpec.makeMeasureSpec(resultSize, resultMode);
}
protected void measureChildWithMargins(View child,
int parentWidthMeasureSpec, int widthUsed,
int parentHeightMeasureSpec, int heightUsed) {
final MarginLayoutParams lp = (MarginLayoutParams) child.getLayoutParams();
final int childWidthMeasureSpec = getChildMeasureSpec(parentWidthMeasureSpec,
/*mPaddingLeft + mPaddingRight +*/ lp.leftMargin + lp.rightMargin
+ widthUsed, lp.width);
final int childHeightMeasureSpec = getChildMeasureSpec(parentHeightMeasureSpec,
/*mPaddingTop + mPaddingBottom +*/ lp.topMargin + lp.bottomMargin
+ heightUsed, lp.height);
child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
}
public static class LayoutParams {
public static final int FILL_PARENT = -1;
public static final int MATCH_PARENT = -1;