本文实例为大家分享了android实现顶部悬浮效果的具体代码，供大家参考，具体内容如下
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<?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
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。
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