flutter修改状态栏字体颜色

Posted 2023-04-12

参考技术A 主要用到的是appbar中的brightness属性,brightness有两个值可取,分别是Brightness.dark和Brightness.light.

另一种方案是:就是用AnnotatedRegion<SystemUiOverlayStyle>包裹,

发现一种更灵活的办法,如下:

只需要在最外层包裹一下,然后设置状态栏字体颜色就可以了,可以不用appbar,更加灵活

Android实现修改状态栏背景字体和图标颜色的方法

前言:

Android开发,对于状态栏的修改,实在是不友好,没什么api可以用,不像ios那么方便.但是ui又喜欢只搞ios一套.没办法.各种翻源码,写反射.真的蛋疼.

需求场景:

当toolbar及状态栏需要为白色或浅色时(如简书),状态栏由于用的Light风格Theme,字体,图标也都是白色,会看不清.如果改变成黑色就很和谐了.

一.修改状态栏颜色:

改变状态栏颜色,可以看看这篇文章.传送门:实现状态栏(statusbar)渐变效果其实很简单

传送门实现的效果:

这种方法实现的状态栏变色,没有黑色背景.

使用全屏模式实现的效果如下(QQ的效果):

很明显的黑色背景.

我用的手机是华为,系统7.0

二.修改状态栏字体:

通用工具类:

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public class StatusBarUtil     /**    * 设置状态栏黑色字体图标，    * 适配4.4以上版本MIUIV、Flyme和6.0以上版本其他Android    *    * @return 1:MIUUI 2:Flyme 3:android6.0    */   public static int getStatusBarLightMode(Window window)     int result = 0;     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)       if (MIUISetStatusBarLightMode(window, true))         result = 1;        else if (FlymeSetStatusBarLightMode(window, true))         result = 2;        else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)         window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);         result = 3;        else //5.0                   return result;        /**    * 已知系统类型时，设置状态栏黑色字体图标。    * 适配4.4以上版本MIUIV、Flyme和6.0以上版本其他Android    */   public static void setStatusBarLightMode(Window window)     int type = getStatusBarLightMode(window);     if (type == 1)       MIUISetStatusBarLightMode(window, true);      else if (type == 2)       FlymeSetStatusBarLightMode(window, true);      else if (type == 3)       window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);      else //5.0                     /**    * 清除MIUI或flyme或6.0以上版本状态栏黑色字体    */   public static void StatusBarDarkMode(Window window)     int type = getStatusBarLightMode(window);     if (type == 1)       MIUISetStatusBarLightMode(window, false);      else if (type == 2)       FlymeSetStatusBarLightMode(window, false);      else if (type == 3)       window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);               /**    * 设置状态栏图标为深色和魅族特定的文字风格    * 可以用来判断是否为Flyme用户    *    * @param window 需要设置的窗口    * @param dark  是否把状态栏字体及图标颜色设置为深色    * @return boolean 成功执行返回true    */   public static boolean FlymeSetStatusBarLightMode(Window window, boolean dark)     boolean result = false;     if (window != null)       try         WindowManager.LayoutParams lp = window.getAttributes();         Field darkFlag = WindowManager.LayoutParams.class             .getDeclaredField("MEIZU_FLAG_DARK_STATUS_BAR_ICON");         Field meizuFlags = WindowManager.LayoutParams.class             .getDeclaredField("meizuFlags");         darkFlag.setAccessible(true);         meizuFlags.setAccessible(true);         int bit = darkFlag.getInt(null);         int value = meizuFlags.getInt(lp);         if (dark)           value |= bit;          else           value &= ~bit;                  meizuFlags.setInt(lp, value);         window.setAttributes(lp);         result = true;        catch (Exception e)                   return result;        /**    * 设置状态栏字体图标为深色，需要MIUIV6以上    *    * @param window 需要设置的窗口    * @param dark  是否把状态栏字体及图标颜色设置为深色    * @return boolean 成功执行返回true    */   public static boolean MIUISetStatusBarLightMode(Window window, boolean dark)     boolean result = false;     if (window != null)       Class clazz = window.getClass();       try         int darkModeFlag = 0;         Class layoutParams = Class.forName("android.view.MiuiWindowManager$LayoutParams");         Field field = layoutParams.getField("EXTRA_FLAG_STATUS_BAR_DARK_MODE");         darkModeFlag = field.getInt(layoutParams);         Method extraFlagField = clazz.getMethod("setExtraFlags", int.class, int.class);         if (dark)           extraFlagField.invoke(window, darkModeFlag, darkModeFlag);//状态栏透明且黑色字体          else           extraFlagField.invoke(window, 0, darkModeFlag);//清除黑色字体                  result = true;        catch (Exception e)                   return result;

activity中使用:

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1	StatusBarUtil.setStatusBarLightMode(getWindow());

效果:

出现的问题:

1.statusbar背景色变成了colorPrimaryDark默认颜色,但是我的配置是白色背景(具体配置代码见最后).

分析原因:

setSystemUiVisibility()会刷新view的属性配置.由于statusbar默认使用colorPrimaryDark属性.所以颜色会变回默认颜色

此时步骤一设置背景的方法就会失效.

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private void initStatusBar()   if (statusBarView == null)     int identifier = getResources().getIdentifier("statusBarBackground", "id", "android");     statusBarView = getWindow().findViewById(identifier);      if (statusBarView != null)     statusBarView.setBackgroundResource(MVPConfig.statusDrawable);

原因:当传入的resid相同时,就不会再次去设置背景色.

解决办法:

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private void initStatusBar()   if (statusBarView == null)     int identifier = getResources().getIdentifier("statusBarBackground", "id", "android");     statusBarView = getWindow().findViewById(identifier);      if (statusBarView != null)     statusBarView.setBackgroundDrawable(null);//在设置前将背景设置为null;     statusBarView.setBackgroundResource(MVPConfig.statusDrawable);

修改后的效果:

三.完整代码:

1.MvpConfig

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public class MVPConfig   public static int statusDrawable;   public static int toolbarBackgroundColor;   public static int toolbarBackgroundDrawable;   public static int backDrawable;   public static boolean isStatusBarLight;     public static void setStatusbarDrawable(@DrawableRes int statusDraw)     statusDrawable = statusDraw;        public static boolean isStatusBar()     return statusDrawable > 0;        public static void setToolbarDrawable(int toolbarBackgroundDrawable)     MVPConfig.toolbarBackgroundDrawable = toolbarBackgroundDrawable;        public static void setBackDrawable(int backDrawable)     MVPConfig.backDrawable = backDrawable;        public static void setIsStatusBarLight(boolean isStatusBarLight)     if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP_MR1)       MVPConfig.statusDrawable = Color.parseColor("#33ffffff");          MVPConfig.isStatusBarLight = isStatusBarLight;

2.Application中

 

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@Override   public void onCreate()     super.onCreate();     MVPConfig.setToolbarDrawable(R.color.white);     MVPConfig.setStatusbarDrawable(R.color.white);     MVPConfig.setBackDrawable(R.drawable.back);     MVPConfig.setIsStatusBarLight(true);

3.BaseActivity

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@Override   protected void onCreate(Bundle savedInstanceState)     super.onCreate(savedInstanceState);  //延时加载数据.     Looper.myQueue().addIdleHandler(new MessageQueue.IdleHandler()       @Override       public boolean queueIdle()         if (isStatusBarLight())           StatusBarUtil.setStatusBarLightMode(getWindow());                  if (isStatusBar())           initStatusBar();           getWindow().getDecorView().addOnLayoutChangeListener(new View.OnLayoutChangeListener()             @Override             public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom)               initStatusBar();                        );                  mPresenter.initData();         return false;            );       private void initStatusBar()     if (statusBarView == null)       int identifier = getResources().getIdentifier("statusBarBackground", "id", "android");       statusBarView = getWindow().findViewById(identifier);          if (statusBarView != null)       if (isStatusBarLight())         statusBarView.setBackgroundDrawable(null);              statusBarView.setBackgroundResource(MVPConfig.statusDrawable);           //子类通过复写该方法,控制是否改变statusbar   protected boolean isStatusBar()     return MVPConfig.isStatusBar();    //子类通过复写该方法,控制是否需要改变statusbar字体颜色   protected boolean isStatusBarLight()     return MVPConfig.isStatusBarLight;

四.补充:

6.0以下,5.0原生系统无法修改字体颜色,用了个比较取巧的办法,设置成半透明灰色.

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public static void setStatusBarLightMode(Window window)    int type = getStatusBarLightMode(window);    if (type == 1)      MIUISetStatusBarLightMode(window, true);     else if (type == 2)      FlymeSetStatusBarLightMode(window, true);     else if (type == 3)      window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);     else      //5.0      if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP_MR1)        MVPConfig.statusDrawable = Color.parseColor("#33ffffff");

由于是直接修改window中的statusbarview的背景,而frgament依赖于activity,所以在activity与fragment直接跳转时,状态栏不是很适用.比如:activity是蓝色,fragment需要是白色,fragment需要通过window修改状态栏颜色.有点麻烦.

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脚本之家。