Android Open Source - utexas-utilities Wrapping Sliding Drawer

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License

The source code is released under:

Apache License

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Java Source Code

package com.nasageek.utexasutilities;
// w  w  w. j  a  va2s. c o  m
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.SlidingDrawer;

@SuppressWarnings("deprecation")
public class WrappingSlidingDrawer extends SlidingDrawer {

    public WrappingSlidingDrawer(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);

        int orientation = attrs
                .getAttributeIntValue("android", "orientation", ORIENTATION_VERTICAL);
        mTopOffset = attrs.getAttributeIntValue("android", "topOffset", 0);
        mVertical = (orientation == SlidingDrawer.ORIENTATION_VERTICAL);
    }

    public WrappingSlidingDrawer(Context context, AttributeSet attrs) {
        super(context, attrs);

        int orientation = attrs
                .getAttributeIntValue("android", "orientation", ORIENTATION_VERTICAL);
        mTopOffset = attrs.getAttributeIntValue("android", "topOffset", 0);
        mVertical = (orientation == SlidingDrawer.ORIENTATION_VERTICAL);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

        int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);
        int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);

        int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);
        int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec);

        if (widthSpecMode == MeasureSpec.UNSPECIFIED || heightSpecMode == MeasureSpec.UNSPECIFIED) {
            throw new RuntimeException("SlidingDrawer cannot have UNSPECIFIED dimensions");
        }

        final View handle = getHandle();
        final View content = getContent();
        measureChild(handle, widthMeasureSpec, heightMeasureSpec);

        if (mVertical) {
            int height = heightSpecSize - handle.getMeasuredHeight() - mTopOffset;
            content.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(height, heightSpecMode));
            heightSpecSize = handle.getMeasuredHeight() + mTopOffset + content.getMeasuredHeight();
            widthSpecSize = content.getMeasuredWidth();
            if (handle.getMeasuredWidth() > widthSpecSize) {
                widthSpecSize = handle.getMeasuredWidth();
            }
        } else {
            int width = widthSpecSize - handle.getMeasuredWidth() - mTopOffset;
            getContent().measure(MeasureSpec.makeMeasureSpec(width, widthSpecMode),
                    heightMeasureSpec);
            widthSpecSize = handle.getMeasuredWidth() + mTopOffset + content.getMeasuredWidth();
            heightSpecSize = content.getMeasuredHeight();
            if (handle.getMeasuredHeight() > heightSpecSize) {
                heightSpecSize = handle.getMeasuredHeight();
            }
        }

        setMeasuredDimension(widthSpecSize, heightSpecSize);
    }

    private boolean mVertical;
    private int mTopOffset;
}

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