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Code Issues Packages Projects Releases Wiki Activity

Add InsettableFrameLayout layout params to easily ignore insets

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Change-Id: I117fc34627e24ea5f909c3c87e9c2dbca46babb6
This commit is contained in:
Adam Cohen
2014-10-24 16:45:59 -07:00
parent 0fb5ce20d7
commit be25822f76
4 changed files with 63 additions and 13 deletions
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58
src/com/android/launcher3/InsettableFrameLayout.java
View File

@@ -1,6 +1,7 @@
package com.android.launcher3;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.View;
@@ -18,16 +19,17 @@ public class InsettableFrameLayout extends FrameLayout implements
}
public void setFrameLayoutChildInsets(View child, Rect newInsets, Rect oldInsets) {
final FrameLayout.LayoutParams flp = (FrameLayout.LayoutParams) child.getLayoutParams();
final LayoutParams lp = (LayoutParams) child.getLayoutParams();
if (child instanceof Insettable) {
((Insettable) child).setInsets(newInsets);
} else {
flp.topMargin += (newInsets.top - oldInsets.top);
flp.leftMargin += (newInsets.left - oldInsets.left);
flp.rightMargin += (newInsets.right - oldInsets.right);
flp.bottomMargin += (newInsets.bottom - oldInsets.bottom);
} else if (!lp.ignoreInsets) {
lp.topMargin += (newInsets.top - oldInsets.top);
lp.leftMargin += (newInsets.left - oldInsets.left);
lp.rightMargin += (newInsets.right - oldInsets.right);
lp.bottomMargin += (newInsets.bottom - oldInsets.bottom);
}
child.setLayoutParams(flp);
child.setLayoutParams(lp);
}
@Override
@@ -40,6 +42,48 @@ public class InsettableFrameLayout extends FrameLayout implements
mInsets.set(insets);
}
@Override
public LayoutParams generateLayoutParams(AttributeSet attrs) {
return new InsettableFrameLayout.LayoutParams(getContext(), attrs);
}
@Override
protected LayoutParams generateDefaultLayoutParams() {
return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
}
// Override to allow type-checking of LayoutParams.
@Override
protected boolean checkLayoutParams(ViewGroup.LayoutParams p) {
return p instanceof InsettableFrameLayout.LayoutParams;
}
@Override
protected LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) {
return new LayoutParams(p);
}
class LayoutParams extends FrameLayout.LayoutParams {
boolean ignoreInsets = false;
public LayoutParams(Context c, AttributeSet attrs) {
super(c, attrs);
TypedArray a = c.obtainStyledAttributes(attrs,
R.styleable.InsettableFrameLayout_Layout);
ignoreInsets = a.getBoolean(
R.styleable.InsettableFrameLayout_Layout_layout_ignoreInsets, false);
a.recycle();
}
public LayoutParams(int width, int height) {
super(width, height);
}
public LayoutParams(ViewGroup.LayoutParams lp) {
super(lp);
}
}
@Override
public void onChildViewAdded(View parent, View child) {
setFrameLayoutChildInsets(child, mInsets, new Rect());