CoordinatorLayout + TabView + AnimateView（从顶部开始）

问题描述

昨天我正在玩 CoordinatorLayout 和 TabView

1）我的目标是什么？

• CoordinatorLayout 与 TabView


• 当我滚动时当时的一个视图如 .GIF 下移。


• 和 TickView 顶部的 Stick （位于AppBar中）。

• CoordinatorLayout with TabView
• When I scroll up at that time One View As show in .GIF move down.
• and Stick on the Top of the TabView (inside AppBar).

2）我到达哪里了？

• CoordinatorLayout 与 TabView 进行漂亮的滚动。


• 带有Appbar的TabView，然后在滚动RecyclerView之后停止顶部滚动。

• CoordinatorLayout with TabView with pretty scrolling.
• TabView with Appbar Stop Scrolling At Top after Then Scroll RecyclerView.

3）我在哪里停留？

• 当我向上滚动 一个视图向下滚动但TabView摇杆在顶部不像第一张图片。

• When I scroll Up One View Scroll Down but TabView Stick At Top not like 1st gif.

4）代码段

• Xml文件

• Xml file

<android.support.design.widget.AppBarLayout
    android:id="@+id/main.appbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:fitsSystemWindows="true"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
    <!--- ADD TAB_LAYOUT HERE -->


    <android.support.design.widget.CollapsingToolbarLayout
        android:id="@+id/main.collapsing"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true"
        app:expandedTitleMarginEnd="64dp"
        app:expandedTitleMarginStart="48dp"
        app:layout_scrollFlags="scroll">

        <ImageView
            android:id="@+id/main.backdrop"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true"
            android:scaleType="centerCrop"
            android:src="@drawable/abc"
            app:layout_collapseMode="none" />


        <!-- ADD ANY THING THAT GETS SCROLLED ALL THE WAY UP WITH TOOLBAR -->
    </android.support.design.widget.CollapsingToolbarLayout>


    <!-- our tablayout to display tabs  -->
    <android.support.design.widget.TabLayout
        android:id="@+id/tabLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?attr/colorPrimary"
        android:minHeight="?attr/actionBarSize"

        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" />


</android.support.design.widget.AppBarLayout>


<android.support.v4.view.ViewPager
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />




Java文件（将上视图向下移动）

Java file (move upper view down code)

AppBarLayout ab = (AppBarLayout) findViewById(R.id.main_appbar);ab.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
    @Override
    public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {

        int ScrollStart = (ab.getHeight() - tabLayout.getHeight() - llTop.getHeight() - llTop.getHeight());
        int scrollStop = (ab.getHeight() - tabLayout.getHeight() - llTop.getHeight());
        if ((-verticalOffset) > ScrollStart && (-verticalOffset) < scrollStop) {
            llTop.setVisibility(View.VISIBLE);
            llTop.setTranslationY(((-verticalOffset) - ScrollStart) - llTop.getHeight());
            Log.e("point", "" + ((-verticalOffset) - ScrollStart));

        } else if ((-verticalOffset) >= scrollStop) {
            llTop.setVisibility(View.VISIBLE);
        } else {
            llTop.setVisibility(View.INVISIBLE);
        }


    }
});




推荐答案

有点棘手。.

只需尝试以这种方式 CollapsingToolbarLayout 的 setMinimumHeight ，并让我

just try to setMinimumHeight of your CollapsingToolbarLayout like this way and do let me know.

CollapsingToolbarLayout layoutCollapsing = (CollapsingToolbarLayout) rootView.findViewById(R.id.layoutCollapsing);
layoutCollapsing.setMinimumHeight(120); 

此处根据您的需要计算最小高度，并将其设置为 setMinimumHeight（120 ）值。

here calculate your minimum height as per your need and set it in place of setMinimumHeight(120) value.

这篇关于CoordinatorLayout + TabView + AnimateView（从顶部开始）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！