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Commit be25822f authored by Adam Cohen's avatar Adam Cohen
Browse files

Add InsettableFrameLayout layout params to easily ignore insets 

Change-Id: I117fc34627e24ea5f909c3c87e9c2dbca46babb6
parent 0fb5ce20

res/layout/launcher_overlay_example.xml

+7 −5
Original line number Diff line number Diff line
@@ -14,19 +14,21 @@ 
     limitations under the License.

-->



<com.android.launcher3.InsettableFrameLayout

<FrameLayout

    xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:launcher="http://schemas.android.com/apk/res-auto/com.android.launcher3"

    android:layout_width="match_parent"

    android:layout_height="match_parent">

    android:layout_height="match_parent"

    launcher:layout_ignoreInsets="true">



    <com.android.launcher3.InsettableFrameLayout

    <FrameLayout

        android:id="@+id/search_overlay"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:background="#ff00ff00"

        android:visibility="invisible" />



    <com.android.launcher3.InsettableFrameLayout

    <FrameLayout

        android:id="@+id/search_box"

        android:layout_width="match_parent"

        android:layout_height="48dp"
@@ -34,4 +36,4 @@ 
        android:layout_marginRight="8dp"

        android:layout_marginTop="36dp"

        android:background="#ffff0000" />

</com.android.launcher3.InsettableFrameLayout>
 
</FrameLayout>

res/values/attrs.xml

+4 −0
Original line number Diff line number Diff line
@@ -145,4 +145,8 @@ 
        <attr name="ringOutset" format="dimension" />

        <attr name="indicatorSize" format="dimension" />

    </declare-styleable>



    <declare-styleable name="InsettableFrameLayout_Layout">

        <attr name="layout_ignoreInsets" format="boolean" />

    </declare-styleable>

</resources>

src/com/android/launcher3/InsettableFrameLayout.java

+51 −7
Original line number Diff line number Diff line 
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());

res/values/styles.xml

+1 −1

File changed.

Contains only whitespace changes.