Flutter 颤振进度\状态\按钮-如何更改按钮状态
我正在尝试使用颤振中的“进度状态”按钮。在pub.dev文档中,小部件的设置如下Flutter 颤振进度\状态\按钮-如何更改按钮状态,flutter,button,state,break,progress,Flutter,Button,State,Break,Progress,我正在尝试使用颤振中的“进度状态”按钮。在pub.dev文档中,小部件的设置如下 Widget buildTextWithIcon() { return ProgressButton.icon(iconedButtons: { ButtonState.idle: IconedButton( text: "Send", icon: Icon(Icons.send, color: Colors.white), color: Colo
Widget buildTextWithIcon() {
return ProgressButton.icon(iconedButtons: {
ButtonState.idle: IconedButton(
text: "Send",
icon: Icon(Icons.send, color: Colors.white),
color: Colors.deepPurple.shade500),
ButtonState.loading:
IconedButton(text: "Loading", color: Colors.deepPurple.shade700),
ButtonState.fail: IconedButton(
text: "Failed",
icon: Icon(Icons.cancel, color: Colors.white),
color: Colors.red.shade300),
ButtonState.success: IconedButton(
text: "Success",
icon: Icon(
Icons.check_circle,
color: Colors.white,
),
color: Colors.green.shade400)
}, onPressed: onPressedIconWithText, state: stateTextWithIcon);
}
我有一个函数(已编写且工作正常),我希望在单击按钮时运行该函数,将按钮状态更改为ButtonState.loading,然后更改为ButtonState.success,然后返回ButtonState.idle。请参见pub.dev网站上的功能说明
void onPressedIconWithText() {
switch (stateTextWithIcon) {
case ButtonState.idle:
stateTextWithIcon = ButtonState.loading;
Future.delayed(Duration(seconds: 1), () {
setState(() {
stateTextWithIcon = Random.secure().nextBool()
? ButtonState.success
: ButtonState.fail;
});
});
break;
case ButtonState.loading:
break;
case ButtonState.success:
stateTextWithIcon = ButtonState.idle;
break;
case ButtonState.fail:
stateTextWithIcon = ButtonState.idle;
break;
}
setState(() {
stateTextWithIcon = stateTextWithIcon;
});
}
}
然而,我对编码是新手,对如何使用“中断”或更改按钮状态一无所知。有谁能帮我建议一下如何在上面的代码中插入我的函数(假设它只是void runFunction(),将状态从空闲-->加载(onPressed)-->成功--.idle更改为空
非常感谢您提供的任何帮助您可以使用setState更新stateTextWithIcon的值
ButtonState stateTextWithIcon = ButtonState.idle;
Widget buildTextWithIcon() {
return ProgressButton.icon(iconedButtons: {
ButtonState.idle: IconedButton(
text: "Send",
icon: Icon(Icons.send, color: Colors.white),
color: Colors.deepPurple.shade500),
ButtonState.loading:
IconedButton(text: "Loading", color: Colors.deepPurple.shade700),
ButtonState.fail: IconedButton(
text: "Failed",
icon: Icon(Icons.cancel, color: Colors.white),
color: Colors.red.shade300),
ButtonState.success: IconedButton(
text: "Success",
icon: Icon(
Icons.check_circle,
color: Colors.white,
),
color: Colors.green.shade400)
}, onPressed: (){
progressButton()
},
state: stateTextWithIcon,
);
这是我儿子处理的事情
Future progressButton() async {
setState(() {
//sets the state of stateTextWithIcon to loading once button is pressed
stateTextWithIcon = ButtonState.loading;
});
var url = 'https://google.com';
final response = await http.get(url);
if (response.statusCode == 200 || response.statusCode == 201) {
setState(() {
//sets the state of stateTextWithIcon to success if whatever request made was successful
stateTextWithIcon= ButtonState.success;
});
} else {
setState(() {
//sets the state of stateTextWithIcon to fail if the request was unsuccessful
stateTextWithIcon = ButtonState.fail;
});
}
}
您可以使用setState更新stateTextWithIcon的值
ButtonState stateTextWithIcon = ButtonState.idle;
Widget buildTextWithIcon() {
return ProgressButton.icon(iconedButtons: {
ButtonState.idle: IconedButton(
text: "Send",
icon: Icon(Icons.send, color: Colors.white),
color: Colors.deepPurple.shade500),
ButtonState.loading:
IconedButton(text: "Loading", color: Colors.deepPurple.shade700),
ButtonState.fail: IconedButton(
text: "Failed",
icon: Icon(Icons.cancel, color: Colors.white),
color: Colors.red.shade300),
ButtonState.success: IconedButton(
text: "Success",
icon: Icon(
Icons.check_circle,
color: Colors.white,
),
color: Colors.green.shade400)
}, onPressed: (){
progressButton()
},
state: stateTextWithIcon,
);
这是我儿子处理的事情
Future progressButton() async {
setState(() {
//sets the state of stateTextWithIcon to loading once button is pressed
stateTextWithIcon = ButtonState.loading;
});
var url = 'https://google.com';
final response = await http.get(url);
if (response.statusCode == 200 || response.statusCode == 201) {
setState(() {
//sets the state of stateTextWithIcon to success if whatever request made was successful
stateTextWithIcon= ButtonState.success;
});
} else {
setState(() {
//sets the state of stateTextWithIcon to fail if the request was unsuccessful
stateTextWithIcon = ButtonState.fail;
});
}
}
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