react-native-keyboardevents 是 React Native 的键盘事件。
基础示例:
// require the module var KeyboardEvents = require('react-native-keyboardevents'); // Now get a handle on the event emitter and add your callbacks // to the desired events. var KeyboardEventEmitter = KeyboardEvents.Emitter; // Each event will receive a `frames` object, which contains three keys - // `begin`, `end`, and `duration` . The `begin` and `end` keys each // contain an object describing the bounds of the keyboard (x, y, width // and height). The `duration` key contains the length of the keyboard // animation in seconds. // The frame in `begin` describes the bounds of the keyboard before the // animation occurred and the frame in `end` describes the bounds the keyboard // will have, after the animation has completed. KeyboardEventEmitter.on(KeyboardEvents.KeyboardWillShowEvent, (frames) => { console.log('will show', frames); }); KeyboardEventEmitter.on(KeyboardEvents.KeyboardDidShowEvent, (frames) => { console.log('did show', frames); }); KeyboardEventEmitter.on(KeyboardEvents.KeyboardWillHideEvent, (frames) => { console.log('will hide', frames); }); KeyboardEventEmitter.on(KeyboardEvents.KeyboardDidHideEvent, (frames) => { console.log('did hide', frames); }); KeyboardEventEmitter.on(KeyboardEvents.KeyboardWillChangeFrame, (frames) => { console.log('will change', frames); }); KeyboardEventEmitter.on(KeyboardEvents.KeyboardDidChangeFrame, (frames) => { console.log('did change', frames); });
现在有一个更准确一点的做法是用一个View包裹住TextInput,然后通过该View的onLayout方法获取该输入框的y轴位置,再减去一个适当的高度去处理scrollview的滚动,如下所示: <View onLayout={this._downloadLayout.bind(this)} style={{marginLeft:15,flexDirection: 'column
rn嵌入第三方分享.目前各大第三方平台还不支持rn集成(登入,支付,分享)所以我们必须要用迂回战术这一部分我们用原生集成然后rn传值调用原生. 代码 准备阶段 原生接入第三方分享这一部分略是个体力活 无非就是添加权限,添加白名单,申请key和导入sdk等 假设你原生第三方分享已经集成完毕了那么接下来我们就用rn传值过来并且调用 #import "FirstViewController.h" //r
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