Android顶部悬浮效果 Android实现顶部悬浮效果
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效果图
布局
<?xml version="1.0" encoding="utf-8"?> <android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/swipeRefreshLayout" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".ui.activity.NewPersonalCardActivity"> <android.support.design.widget.CoordinatorLayout android:id="@+id/rootLayout" android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.design.widget.AppBarLayout android:id="@+id/appBarLayout" android:layout_width="match_parent" android:layout_height="wrap_content"> <android.support.design.widget.CollapsingToolbarLayout android:id="@+id/collapsingToolbarLayout" android:layout_width="match_parent" android:layout_height="192dp" app:layout_scrollFlags="scroll|exitUntilCollapsed" app:titleEnabled="false"> <LinearLayout android:id="@+id/headLayout" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" app:layout_collapseMode="pin" app:layout_collapseParallaxMultiplier="0.7"> <include layout="@layout/personal_new_top" /> </LinearLayout> <android.support.v7.widget.Toolbar android:id="@+id/toolBar" android:layout_width="match_parent" android:layout_height="44dp" android:background="@color/white" android:navigationIcon="@drawable/icon_back" app:contentInsetLeft="0dp" app:contentInsetStart="0dp" app:layout_collapseMode="pin" app:navigationIcon="@drawable/icon_back"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:singleLine="true" android:textColor="@color/c333333" android:textSize="16sp" tools:text="讲师" /> </android.support.v7.widget.Toolbar> </android.support.design.widget.CollapsingToolbarLayout> <include layout="@layout/new_personal_tabs" /> </android.support.design.widget.AppBarLayout> <android.support.v4.widget.NestedScrollView android:id="@+id/nestedScrollView" android:layout_width="match_parent" android:layout_height="match_parent" android:fillViewport="true" android:scrollbars="none" app:layout_behavior="@string/appbar_scrolling_view_behavior"> <android.support.v4.view.ViewPager android:id="@+id/viewPager" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior" /> </android.support.v4.widget.NestedScrollView> </android.support.design.widget.CoordinatorLayout> </android.support.v4.widget.SwipeRefreshLayout>
java
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ARouter.getInstance().inject(this); setContentView(R.layout.activity_new_personal_card); ButterKnife.bind(this); setSupportActionBar(toolBar); getSupportActionBar().setDisplayHomeAsUpEnabled(true); getSupportActionBar().setDisplayShowTitleEnabled(false); toolBar.setNavigationOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { onBackPressed(); } }); initData(); } private void initRefresh() { appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() { @Override public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) { if (verticalOffset >= 0) { swipeRefreshLayout.setEnabled(true); } else { swipeRefreshLayout.setEnabled(false); } } }); swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { @Override public void onRefresh() { initData(); swipeRefreshLayout.setRefreshing(false); } }); }
注意事项
1.清单文件需要配置
android:theme="@style/personalCard"
<style name="personalCard" parent="Theme.AppCompat.Light.DarkActionBar"> <!-- Customize your theme here. --> <item name="windowActionBar">false</item> <item name="windowNoTitle">true</item> <item name="colorPrimary">@color/colorPrimary</item> <item name="colorPrimaryDark">@color/colorPrimaryDark</item> <item name="colorAccent">@color/colorAccent</item> </style>
2.gradle配置需要24以上
compileSdkVersion 24 //------------------ 在线依赖开始 ---------------- compile 'com.android.support:appcompat-v7:24.2.0' compile 'com.android.support:recyclerview-v7:24.2.0' compile 'com.android.support:cardview-v7:24.2.0' compile 'com.android.support:design:24.2.0'
3.recyclerView的下滑和swipRefreshLayout的下拉刷新会冲突,所以需要监听appBarLayout的位移,当位移等于0时,即appBarLayout全部展示,可以下拉刷新
4.string.xml
复制代码 代码如下:
<string name="appbar_scrolling_view_behavior" translatable="false">android.support.design.widget.AppBarLayout$ScrollingViewBehavior</string>
切记
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