rn 键盘上方添加自定义安全健

效果图：

image.png

    //键盘弹出事件响应
    keyboardDidShowHandler(event) {
        // this.setState({KeyboardShown: true});
        console.log(event.endCoordinates.height);

        this.setState({
            keyboardTopHeight:30,
            keyboardTopMarginTop:height - event.endCoordinates.height - 30,
        })
    }

    //键盘隐藏事件响应
    keyboardWillHideHandler(event) {
        // this.setState({KeyboardShown: false});

        this.setState({
            keyboardTopHeight:0,
            keyboardTopMarginTop:0,
        })
    }

    //强制隐藏键盘
    dissmissKeyboard() {
        Keyboard.dismiss();
        console.log("输入框当前焦点状态：" + this.refs.bottomInput.isFocused());

        this.setState({
            keyboardTopHeight:0,
            keyboardTopMarginTop:0,
        })
    }

android有物理返回键 所以android用Platform过滤了

demo