javascript - How to make chat like UI with chat bubbles in React JS - Stack Overflow

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I have some JSON data in dummyData. I am not sure how can I place the chat bubbles on left and right according to the direction. I am using Material UI and context API. Image for the reference. I don't want to use any library other than material UI.

Currently, every chat bubble is positioned to the left. How to position bubbles according to the direction. Code so far (CodeSandbox):

    import React from 'react';
import makeStyles from '@material-ui/core/styles/makeStyles';

const useStyles = makeStyles(theme => ({
    container: {
        bottom: 0,
        position: 'fixed'
    },
    bubbleContainer: {
        width: '100%'
    },
    bubble: {
        border: '0.5px solid black',
        borderRadius: '10px',
        margin: '5px',
        padding: '10px',
        display: 'inline-block'
    }
}));

const ChatLayout = () => {
    const classes = useStyles();
    const dummyData = [
        {
            message: '1: This should be in left',
            direction: 'left'
        },
        {
            message: '2: This should be in right',
            direction: 'right'
        },
        {
            message: '3: This should be in left again',
            direction: 'left'
        }
    ];

    const chatBubbles = dummyData.map((obj, i = 0) => (
        <div className={classes.bubbleContainer}>
            <div key={i++} className={classes.bubble}>
                <div className={classes.button}>{obj.message}</div>
            </div>
        </div>
    ));
    return <div className={classes.container}>{chatBubbles}</div>;
};

export default ChatLayout;

I have some JSON data in dummyData. I am not sure how can I place the chat bubbles on left and right according to the direction. I am using Material UI and context API. Image for the reference. I don't want to use any library other than material UI.

Currently, every chat bubble is positioned to the left. How to position bubbles according to the direction. Code so far (CodeSandbox):

    import React from 'react';
import makeStyles from '@material-ui/core/styles/makeStyles';

const useStyles = makeStyles(theme => ({
    container: {
        bottom: 0,
        position: 'fixed'
    },
    bubbleContainer: {
        width: '100%'
    },
    bubble: {
        border: '0.5px solid black',
        borderRadius: '10px',
        margin: '5px',
        padding: '10px',
        display: 'inline-block'
    }
}));

const ChatLayout = () => {
    const classes = useStyles();
    const dummyData = [
        {
            message: '1: This should be in left',
            direction: 'left'
        },
        {
            message: '2: This should be in right',
            direction: 'right'
        },
        {
            message: '3: This should be in left again',
            direction: 'left'
        }
    ];

    const chatBubbles = dummyData.map((obj, i = 0) => (
        <div className={classes.bubbleContainer}>
            <div key={i++} className={classes.bubble}>
                <div className={classes.button}>{obj.message}</div>
            </div>
        </div>
    ));
    return <div className={classes.container}>{chatBubbles}</div>;
};

export default ChatLayout;

• javascript
• css
• reactjs
• material-ui
• jsx

Share Improve this question Follow asked Sep 30, 2019 at 4:47 mevrickmevrick 1,04544 gold badges2121 silver badges3131 bronze badges 5

• 2 I have made some css and logical changes in your codesanbox .check updated one : codesandbox.io/s/practical-faraday-zmkdm-updated-zmkdm , zmkdm.csb.app – Kais Commented Sep 30, 2019 at 5:05
• This is perfect! Please make it an answer. How do I align "bubbleContainer" to the bottom? I tried adding "justify-content: flex-end !important" to "bubbleContainer" but doesn't work. – mevrick Commented Sep 30, 2019 at 6:12
• Did you mean you want bubble start from bottom to top? – Kais Commented Sep 30, 2019 at 7:18
• Yes. I had used "bottom: 0, position: 'fixed'" to make it happen. – mevrick Commented Sep 30, 2019 at 7:46
• check now, I have updated style.css – Kais Commented Sep 30, 2019 at 7:52

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 0

To achieve the result you want, you need to use flexbox. Here is the updated code with ments noting added or updated lines (CodeSandbox):

import React from "react";
import makeStyles from "@material-ui/core/styles/makeStyles";

const useStyles = makeStyles(theme => ({
  container: {
    bottom: 0,
    position: "fixed", // added line
    display: "flex", // added line
    flexDirection: "column" // added line
  },
  bubbleContainerLeft: {
    marginRight: "auto" // updated line
  },
  bubbleContainerRight: {
    marginLeft: "auto" // updated line
  },
  bubble: {
    border: "0.5px solid black",
    borderRadius: "10px",
    margin: "5px",
    padding: "10px",
    display: "inline-block"
  }
}));

const ChatLayout = () => {
  const classes = useStyles();
  const dummyData = [
    {
      message: "1: This should be in left",
      direction: "left"
    },
    {
      message: "2: This should be in right",
      direction: "right"
    },
    {
      message: "3: This should be in left again",
      direction: "left"
    }
  ];

  const chatBubbles = dummyData.map((obj, i = 0) => (
    // updated line
    <div className={obj.direction === "left" ? classes.bubbleContainerLeft : classes.bubbleContainerRight}> 
      <div key={i++} className={classes.bubble}>
        <div className={classes.button}>{obj.message}</div>
      </div>
    </div>
  ));
  return <div className={classes.container}>{chatBubbles}</div>;
};

export default ChatLayout;

Explanation for the changes:

I set the parent container as a flexbox. To move the child to the left, set marginRight to auto. This will make it so this child has the maximum possible right margin, thus making it left-aligned. We do a similar thing to move the child to the right, but reversed: marginLeft set to auto.

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