react 的 Trigger

在React中，trigger是一个用于触发动画的方法。在给定的例子中，triggerAnimation()方法是用来触发动画的。它使用了Animated.sequence()方法来定义一组连续的动画序列。每个动画都使用Animated.spring()方法来定义，并且通过toValue属性指定了动画的目标位置。在每个动画执行完之后，会调用start()方法来启动下一个动画。在最后一个动画执行完之后，会调用传入的回调方法cb，这样就可以实现动画的循环播放。\[2\]
#### 引用[.reference_title]
- *1* *2* *3* [React Native填坑之旅--动画篇](https://blog.csdn.net/future_challenger/article/details/52684476)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
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相关问题

react 的 Trigger组件

React中的Trigger组件是一个父组件，它包含一个Child组件和一个按钮。当Trigger组件的按钮被点击时，它会通过子组件的实例调用子组件中的方法。具体实现如下：

在Parent.js中，定义了一个Parent组件，它包含一个Child组件和一个按钮。在Parent组件的render方法中，通过`<Child onChildEvent={this.handleChildEvent} />`将`handleChildEvent`方法传递给Child组件的`onChildEvent`属性。这样，在Child组件的`componentDidMount`方法中，通过`this.props.onChildEvent(this)`将Child组件的实例传递给Parent组件的`handleChildEvent`方法。

在Parent组件的`handleClick`方法中，通过`this.childRef.sendMessage()`调用Child组件中的`sendMessage`方法。

这样，当Trigger组件的按钮被点击时，会触发Child组件中的`sendMessage`方法。
#### 引用[.reference_title]
- *1* *3* [React 父组件调用子组件中的方法，Ref的使用](https://blog.csdn.net/ZiChen_Jiang/article/details/126418463)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [React组件之间传值](https://blog.csdn.net/weixin_41719836/article/details/80393137)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
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react native toast

React Native Toast is a component that displays a short message to the user, typically to inform them of a task completion or an error. It is a popular feature in mobile applications, as it provides users with quick feedback on their actions.

There are several libraries available for implementing Toast in React Native, such as react-native-toast-message, react-native-simple-toast, and react-native-easy-toast. These libraries provide customizable options for displaying the Toast, such as duration, position, and style.

To implement Toast in React Native, you need to import the Toast library and call the function to display the message. For example, using the react-native-toast-message library:

import Toast from 'react-native-toast-message';

function App() {
  const showToast = () => {
    Toast.show({
      type: 'success',
      text1: 'Task Completed',
      text2: 'Your task has been completed successfully',
      visibilityTime: 2000,
      autoHide: true,
      topOffset: 30,
      bottomOffset: 40,
      position: 'bottom',
      onPress: () => {
        // do something when the Toast is pressed
      },
    });
  };

  return (
    <View>
      <Button title="Show Toast" onPress={showToast} />
      <Toast ref={(ref) => Toast.setRef(ref)} />
    </View>
  );
}

In this example, a Toast is displayed with a success message when the user clicks on the "Show Toast" button. The Toast is positioned at the bottom with a visibility time of 2 seconds and auto-hides when the time is up. The user can also press on the Toast to trigger an action.