Android FrameLayout等 设置子控件层级 控件最上层显示 顶层显示

概述View.javaview.bringToFront();//将view提高到最顶层显示/***Changetheview'szorderinthetree,soit'sontopofothersibling*views.Thisorderingchangemayaffectlayout,iftheparentcontainer*usesanorder-dependentla

VIEw.java
vIEw.bringToFront(); // 将vIEw提高到最顶层显示

    /**     * Change the vIEw's z order in the tree, so it's on top of other sibling     * vIEws. This ordering change may affect layout, if the parent container     * uses an order-dependent layout scheme (e.g., linearLayout). Prior     * to {@link androID.os.Build.VERSION_CODES#KITKAT} this     * method should be followed by calls to {@link #requestLayout()} and     * {@link VIEw#invalIDate()} on the vIEw's parent to force the parent to redraw     * with the new child ordering.     *     * @see VIEwGroup#bringChildToFront(VIEw)     */    public voID bringToFront() {        if (mParent != null) {            mParent.bringChildToFront(this);        }    }

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