Android放大点击区域

1.定义放大点击区域工具类

package com.sdt.matter.common.utils;

import android.graphics.Rect;
import android.view.TouchDelegate;
import android.view.View;

public class ExpandedTouchViewUtil {
    private static final int EXPAND_SIZE = 10;

    public static void expandTouchArea(View view) {
        final View parent = (View) view.getParent();
        parent.post(new Runnable() {
            @Override
            public void run() {
                Rect rect = new Rect();
                view.getHitRect(rect);
                rect.top -= EXPAND_SIZE;
                rect.left -= EXPAND_SIZE;
                rect.right += EXPAND_SIZE;
                rect.bottom += EXPAND_SIZE;
                TouchDelegate delegate = new TouchDelegate(rect, view);
                parent.setTouchDelegate(delegate);
            }
        });

    }
}

2.传入需要放大点击区域的控件

ExpandedTouchViewUtil.expandTouchArea(mBinding.titleBar.homesChangeBtn);
ExpandedTouchViewUtil.expandTouchArea(mBinding.tabMoreBtn);