Android备忘(一): Toolbar、BottomN

一. Toolbar

• Style
   <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <......>
   </style>
   <style name="AppTheme.NoActionBar">
    <item name="android:fitsSystemWindows">false</item>
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
   </style>

• BaseActivity
    4.4兼用占用式
    6.0字体明暗配置

private void occupyStatusBar() {
        //占用状态栏：相应Style:fitsSystemWindows = false, toolbar需要添加状态栏高度
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        //占用虚拟按键栏
//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            //6.0+ : 改变状态栏字体颜色(此处的颜色应该等同于主题色或状态栏的颜色)
            if (isLightColor(getResources().getColor(R.color.colorPrimary))) {
                getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
            } else {
                getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
            }
        }
}

private boolean isLightColor(int color) {
        return ColorUtils.calculateLuminance(color) >= 0.5;
}

• XML

    <!--占用式：自定义高度、内容-->
    <!--1.android:fitsSystemWindows="true"（状态栏控件填充）-->
    <!--2.android:minHeight="?attr/actionBarSize"（最小高度可修改）-->
    <!--3.app:titleMargin="0dp"（布局居中）-->
    <!--4.app:contentInsetStart="0dp"(去除右边空隙)-->
    <android.support.v7.widget.Toolbar
        android:id="@+id/main_toolbar"
        android:fitsSystemWindows="true"
        android:layout_width="match_parent"
        android:layout_height="68dp"
        app:titleMargin="0dp"
        android:minHeight="?attr/actionBarSize">
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">
              <!-- 自定义内容 -->
        </RelativeLayout>
    </android.support.v7.widget.Toolbar>

二. BottomNavigationView

• 显示文字

@SuppressLint("RestrictedApi")
public class BottomNavigationViewHelper {
    @SuppressLint("WrongConstant")
    public static void disableShiftMode(BottomNavigationView view) {
        BottomNavigationMenuView menuView = (BottomNavigationMenuView) view.getChildAt(0);
        try {
            menuView.setLabelVisibilityMode(1);
            for (int i = 0; i < menuView.getChildCount(); i++) {
                BottomNavigationItemView item = (BottomNavigationItemView) menuView.getChildAt(i);
                item.setShifting(false);
            }
        } catch (Exception e) { }
    }
}

BottomNavigationViewHelper.disableShiftMode(mNavigationBar);

• 取消字体动画
    创建values/values.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <dimen name="design_bottom_navigation_active_text_size">12dp</dimen>
    <dimen name="design_bottom_navigation_text_size">12dp</dimen>
</resources>

• 取消点击波纹

 <com.google.android.material.bottomnavigation.BottomNavigationView
        ...
        app:itemBackground="@android:color/transparent"
        .../>