我正在关注离子2文档以设置iOS状态栏颜色,但它无法正常工作。状态栏文本为白色,这意味着在我的白色背景上它是不可见的。
我在app构造函数中添加的代码是:
StatusBar.overlaysWebView(true);
StatusBar.styleDefault();

我使用以下方法导入StatusBar:
import {StatusBar} from 'ionic-native';

我还检查过安装了cordova statusbar插件。
答案 0 :(得分:15)
您可以尝试在config.xml中添加此项,并使用您要设置的颜色的十六进制值:
<preference name="StatusBarOverlaysWebView" value="false" />
<preference name="StatusBarBackgroundColor" value="#000000" />
对于ngCordova或离子原生,您可以使用
$cordovaStatusbar.styleColor('black');
$cordovaStatusbar.styleHex('#000');
或者你查看状态栏cordova插件github页面有一些方法来改变状态栏的颜色:https://github.com/apache/cordova-plugin-statusbar
适用于Android:
if (cordova.platformId == 'android') {
StatusBar.backgroundColorByHexString("#333");
}
适用于iOS
在iOS 7上,当您将StatusBar.statusBarOverlaysWebView设置为false时,您可以按颜色名称设置状态栏的背景颜色。
StatusBar.backgroundColorByName("red");
支持的颜色名称为:
black, darkGray, lightGray, white, gray, red, green, blue, cyan, yellow, magenta, orange, purple, brown
或强>
用十六进制字符串设置状态栏的背景颜色。
StatusBar.backgroundColorByHexString("#C0C0C0");
还支持CSS速记属性。
StatusBar.backgroundColorByHexString("#333"); // => #333333
StatusBar.backgroundColorByHexString("#FAB"); // => #FFAABB
On iOS 7, when you set StatusBar.statusBarOverlaysWebView to false, you can set the background color of the statusbar by a hex string (#RRGGBB).
在WP7和WP8上,您还可以将值指定为#AARRGGBB,其中AA是alpha值
答案 1 :(得分:2)
您需要做的就是在app.module.ts
(或其他任何名称)中包含此指令。
这将处理整个应用程序中状态栏文本颜色行为动态(无需担心何时何地设置内容):
import { Directive, ElementRef, OnDestroy, OnInit, Optional } from '@angular/core'
import { StatusBar } from '@ionic-native/status-bar'
import { Platform, ViewController } from 'ionic-angular'
@Directive({
/* tslint:disable */
selector: "ion-header",
/* tslint:enable */
})
export class DynamicStatusBarDirective implements OnInit, OnDestroy {
public static isColorTooLight(colorString) {
let rgb = DynamicStatusBarDirective.getRgbColor(colorString)
if (rgb.a || (rgb.a < 0.2)) { // becoming too transparent
return true
}
// contrast computation algorithm/approach: https://24ways.org/2010/calculating-color-contrast
let yiq = ((rgb.r * 299) + (rgb.g * 587) + (rgb.b * 114)) / 1000
return yiq >= 128
}
public static getRgbColor(colorString): RGB {
if (!colorString) {
return null
}
let rgb: RGB = new RGB()
if (colorString[ 0 ] === '#') { // seems hex color
rgb.r = parseInt(colorString.substr(0, 2), 16)
rgb.g = parseInt(colorString.substr(2, 2), 16)
rgb.b = parseInt(colorString.substr(4, 2), 16)
} else {
let matchColors = /rgba?\(((25[0-5]|2[0-4]\d|1\d{1,2}|\d\d?)\s*,\s*?){2}(25[0-5]|2[0-4]\d|1\d{1,2}|\d\d?)\s*,?\s*([01]\.?\d*?)?\)/
let colors = matchColors.exec(colorString)
if (colors) {
rgb.r = parseInt(colors[ 1 ], 10)
rgb.g = parseInt(colors[ 2 ], 10)
rgb.b = parseInt(colors[ 3 ], 10)
if (colors[ 4 ]) { // has transparency
rgb.a = parseInt(colors[ 4 ], 10)
}
}
}
return rgb
}
public static getModalParent(nativeElm) {
return nativeElm
.parentNode // modal
.parentNode // modal wrapper
.parentNode // ion-modal
.parentNode // ion-app, which handles background status bar
}
public static getHeaderBackgroundForMobile(nativeElm) {
let header = nativeElm.querySelector('.toolbar-background')
return window.getComputedStyle(header).backgroundColor
}
public ionViewEnterCallback: Function
public modalCloseCallback: Function
constructor(
public platform: Platform,
public statusBar: StatusBar,
public elm: ElementRef,
@Optional() public viewCtrl: ViewController,
) {
}
public ngOnInit(): void {
this.ionViewEnterCallback = () => this.checkStatusBar()
if (this.viewCtrl) {
this.viewCtrl.willEnter.subscribe(this.ionViewEnterCallback)
}
}
public ngOnDestroy(): void {
this.viewCtrl.willEnter.unsubscribe()
this.viewCtrl.didLeave.unsubscribe()
}
public checkStatusBar(): void {
if (!this.platform.is('ios')) {
return
}
let nativeElm = this.elm.nativeElement
if (this.viewCtrl.isOverlay) { // dealing with modal
let parentNativeElm = DynamicStatusBarDirective.getModalParent(nativeElm)
if (parentNativeElm) { // modal is open
this.modalCloseCallback = () => this.setColor(window.getComputedStyle(parentNativeElm).backgroundColor)
this.viewCtrl.didLeave.subscribe(this.modalCloseCallback)
}
if (this.platform.is('tablet')) {
this.setColor(true) // for modals we are getting grey overlay, so need to set white background
return
}
}
let background = DynamicStatusBarDirective.getHeaderBackgroundForMobile(nativeElm)
if (background) {
this.setColor(background)
}
}
public setColor(background: any): void {
let isTooLight = DynamicStatusBarDirective.isColorTooLight(background)
if (isTooLight) {
this.statusBar.styleDefault()
} else {
this.statusBar.styleBlackTranslucent()
}
}
}
class RGB {
r: number
g: number
b: number
a?: number
}