實現ActionBar的home圖示動畫切換效果
阿新 • • 發佈:2018-12-12
效果圖
1.首先,該頁面的佈局是一個DrawerLayout,程式碼如下:
<?xml version="1.0" encoding="utf-8"?> <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:id="@+id/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.design.widget.CoordinatorLayout android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.v7.widget.Toolbar android:id="@+id/toolbar_1" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="?attr/colorPrimary" android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" app:popupTheme="@style/ThemeOverlay.AppCompat.Light"> </android.support.v7.widget.Toolbar> </android.support.design.widget.CoordinatorLayout> <android.support.design.widget.NavigationView android:id="@+id/nav_view" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="start" app:menu="@menu/nav_menu" app:headerLayout="@layout/nav_header"> </android.support.design.widget.NavigationView> </android.support.v4.widget.DrawerLayout>
2.為程式指定Actionbar箭頭按鈕樣式,即如下程式碼中的DrawerArrowStyle
<resources> <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"> <!-- Customize your theme here. --> <item name="colorPrimary">@color/colorPrimary</item> <item name="colorPrimaryDark">@color/colorPrimaryDark</item> <item name="colorAccent">@color/colorAccent</item> </style> <style name="DrawerArrowStyle" parent="Widget.AppCompat.DrawerArrowToggle"> <item name="spinBars">true</item> <item name="color">@android:color/white</item> </style> </resources>
3.在MainActivity中onCreate新增以下程式碼
ActionBar actionBar=getSupportActionBar(); if (actionBar != null) { actionBar.setDisplayHomeAsUpEnabled(true); actionBar.setHomeButtonEnabled(true); } drawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.open, R.string.close); mDrawerLayout.addDrawerListener(drawerToggle);
R.string.open和R.string.close在strings.xml中配置,程式碼如下
<string name="close">關閉</string>
<string name="open">開啟</string>
4.重寫onPostCreate方法
@Override
protected void onPostCreate(@Nullable Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerToggle.syncState();
}