Angular Can';t将焦点设置为提示警报输入
使用Ionic 3,我创建了一个由函数Angular Can';t将焦点设置为提示警报输入,angular,ionic-framework,ionic3,Angular,Ionic Framework,Ionic3,使用Ionic 3,我创建了一个由函数resetPassword()触发的提示警报。我希望它的唯一输入是聚焦,并在显示时打开iOS/Android键盘 这就是功能: resetPassword() { let prompt = this.alertCtrl.create({ title: 'Reset Password', message: "Enter your email address to receive a password reset email"
resetPassword()
触发的提示警报。我希望它的唯一输入是聚焦,并在显示时打开iOS/Android键盘
这就是功能:
resetPassword() {
let prompt = this.alertCtrl.create({
title: 'Reset Password',
message: "Enter your email address to receive a password reset email",
inputs: [
{
name: 'email',
placeholder: 'Email',
type: 'email'
},
],
buttons: [
{
text: 'Cancel',
handler: data => {
console.log('Cancel clicked', data);
}
},
{
text: 'Send',
handler: data => {
console.log('Send clicked');
}
}
]
});
prompt.present().then(() => {
console.log("presenting")
const firstInput: any = document.querySelector('ion-alert input');
console.log("alert input", JSON.stringify(firstInput))
firstInput.focus();
return;
});
}
使用.focus()似乎不起作用。
日志JSON.stringify(firstInput)
在iOS上显示以下内容:
{
"__zone_symbol__ngModelChangefalse": [{
"type": "eventTask",
"state": "scheduled",
"source": "HTMLInputElement.addEventListener:ngModelChange",
"zone": "angular",
"runCount": 0
}],
"__zone_symbol__inputfalse": [{
"type": "eventTask",
"state": "scheduled",
"source": "HTMLInputElement.addEventListener:input",
"zone": "angular",
"runCount": 0
}],
"__zone_symbol__blurfalse": [{
"type": "eventTask",
"state": "scheduled",
"source": "HTMLInputElement.addEventListener:blur",
"zone": "angular",
"runCount": 0
}],
"__zone_symbol__compositionstartfalse": [{
"type": "eventTask",
"state": "scheduled",
"source": "HTMLInputElement.addEventListener:compositionstart",
"zone": "angular",
"runCount": 0
}],
"__zone_symbol__compositionendfalse": [{
"type": "eventTask",
"state": "scheduled",
"source": "HTMLInputElement.addEventListener:compositionend",
"zone": "angular",
"runCount": 0
}]
}
如何解决此问题?您可以对输入应用cssClass。在代码中
inputs: [
{
name: 'email',
placeholder: 'Email',
type: 'email'
cssClass: 'customClass'
},
]
并将css属性应用于scss文件中的该自定义类
.customClass:focus {
-css properties here-
}
alert.present()代码>返回一个承诺。因此,我们可以简单地添加以下行以实现预期的行为
alert.present().then(() => {
const firstInput: any = document.querySelector('ion-alert input');
firstInput.focus();
return;
}))
由于这个事实,querySelector();allways获取第一个结果,它将聚焦第一个输入元素,该元素位于显示的警报中
如果要聚焦第二个、第三个等,应更改querySelector(“离子警报输入”)
到querySelectorAll('ion-alert input')[1]
,1作为第二个输入元素的占位符
在config.xml文件中,不要忘记添加这一行
<preference name="KeyboardDisplayRequiresUserAction" value="false" />
不幸的是,这种技巧只能在Android上使用,因为iOS 10+左右的苹果只想让用户明确地设置对输入元素的关注,而不支持对未来元素的编程关注。思考是为了防止各种恶意意图。但是是的,它是sux,因为UX的一些良好实践也受到了影响/您是否也在config.xml中尝试了“KeyboardDisplayRequiresAction”?