Error inflating class com.google.android.material.button.MaterialButton

See also questions close to this topic

• Read each name in Array list to create seperate object for

  I have a file that has student names, age, and an id number. I have a student class that holds the everything above for each student object. I stored all the names, id numbers. and age separately in an array list. Now im trying to assign the info to create a student object.

  public class Student {
      private String lName;
      private int idNumber;
      private int age;
  
      public Student() {
          lName = "";
          idNumber = 0;
          age = 0;
      }
      public Student(String l, int i, int a) {
          lName = l;
          idNumber = i;
          age = a;
      }
  
      public void setName(String last) {
          lName = last;
      }
  
      public String getName() {
          return lName;
      }
  
      public void setIdNum(int num) {
          idNumber = num;
      }
  
      public int getIdNum() {
          return idNumber;
      }
  
      public void setAge(int a) {
          age = a;
      }
  
      public int getAge() {
          return age;
      }
  }
  

  My Text File looks something like this: This info is stored in parallel array lists. I don't quite get how to implement this into an object to pass it into my second contractor method.

    Josh          2134         19
    Smith         5256         21
    Rogers        9248         19
    Andrew        7742         20
  

  Here's what I've tried;

  public static void main(String[] args) {
      String file = "studentData.txt";
      Scanner reader = new Scanner(file);
  
      ArrayList<String> lastNames = lNames(file);
      ArrayList<Integer> idNumbers = idNum(file);
      ArrayList<Integer> ageList = ages(file);
  
      Scanner input = new Scanner(System.in);
  
      Student s1 = new Student();
  
      // confused about how to implement this constructor with the textile info
      for (int i = 0; i<idNumbers.size(); i++) {
          Student user = new Student(lastNames.get(i), idNumbers.get(i), ageList.get(i));
      }
  
      //user enters idNumber to display age
      System.out.println("Enter ID Number"); //exception handling to be added
      int idNum = input.nextInt();
  
      for (int i = 0; i<idNumbers.size(); i++) {
          if (idNum == idNumbers.get(i)) {
              s1.setAge(ageList.get(i));
              System.out.println(s1.getAge());
  
          }
      }
  }
  
• Using EdittextPreference for Goto search

  sorry for my poor English. I want to use EditTextPreference in my bottom nav like the pic below, ![screenshot][1]

  I have recycleview xml in my project with in many sub cardview layouts(which is scrollable) and I want to create item in the bottom nav which is called "Goto". When the "Goto" item is clicked i want it to pop-up like the screenshot. And when user enters a number(according to the cardviews i.e if the number of cardview is 40 user must enter 1-40) I want to search the cardview by its ID. Thank you and I hope u got it, If u have any questions let me know [1]: https://i.stack.imgur.com/grK8P.jpg

  My xml format look like this. As you see in the blow since the cardviews are huge in number it is not cool to scroll all the way down that is why i need Goto item in the bottom nav to search it by its ID when the user click number in the EditTextPreference as u see in the screenshot. i.e The screenshot is not from my app

  <LinearLayout>
   <LinearLayout>
    <androidx.cardview.widget.CardView>
      <RealtiveLayout>
         <Textview/>
      <RealtiveLayout>
   </androidx.cardview.widget.CardView>
   </LinearLayout>
  
   <LinearLayout>
    <androidx.cardview.widget.CardView>
      <RealtiveLayout>
         <Textview/>
      <RealtiveLayout>
   </androidx.cardview.widget.CardView>
   </LinearLayout>
  
  <LinearLayout>
    <androidx.cardview.widget.CardView>
      <RealtiveLayout>
         <Textview/>
      <RealtiveLayout>
   </androidx.cardview.widget.CardView>
   </LinearLayout>
  
    <LinearLayout>
    <androidx.cardview.widget.CardView>
      <RealtiveLayout>
         <Textview/>
      <RealtiveLayout>
   </androidx.cardview.widget.CardView>
   </LinearLayout>
   
    ..
    ..
  
    ..
    ..
    many more..
  
• How to get remaining time of the day in java?

  I would like to calculate the time remaining for next day 00:00:00 from the current date time.

  For e.g. time difference between 2022-05-07T05:49:41.883807900Z and 2022-05-08T00:00:00Z

  Expected answer: 18:10:19 or 65419 (in seconds).

  How can I achieve this with efficiently using java 8?
• Updating a Single Column In Room Database

  That's the function I'm using for updat

  private fun updateSettingsDatabase(settingsDao: SettingsDao) {
          lifecycleScope.launch {
              settingsDao.update(SettingsEntity(
                  1,
                  nightMode=nightModeResult,
              ))
          }
  }
  
  @Query("SELECT * FROM `settings-table`")
  fun fetchCurrentSettings(): Flow<List<SettingsEntity>>
  

  I specified nightMode= because I thought that this way I'm only updating this colummn, but it turns out that it resets every column, how do I update a single column, while keeping the values the rest of the columns?
• IOS Launcher in android studio

  I'm trying to change the whole Android OS installed app icons into IOS icons, please help me with the proper code or library for android kotlin
• React MUI - Consistent Tab Content Height

  I understand that ideally should be placed at the top of the page. However, Assume they are place in the middle of the page. When changing from a tab with a lot of content, to a tab with little content, the scrollable area disappears. Is there anyway to preserve the white space?

  https://codesandbox.io/s/labtabs-material-demo-forked-y39i2g?file=/demo.tsx

  Here is a code sandbox example.

  Step 1 scroll down to tabs.

  Step 2 scroll down tab 1 content( leave tabs visible)

  Step 3 click tab 2 (Mouse no longer is hovering over tabs because vertical scroll content vanishes)

  Edit: I am able to change my root div min height to whatever I need hard-coded. I feel like this hacky though and not dynamic to the tallest tab
• MUI Radio button disabled change value when Select drop down changes

  My problem is that when I change a value in a dropdown I want to disable two radio buttons and change to the correct radio button. I am able to disable the radio buttons but not able to change the value to the one that isn't disabled. This might sound very complicated but I have made a code sandbox showing an example making it very simple to understand what goes wrong. So in the example which is the same as the code below. When the dropdown gets changed to buildings, both and colors should be disabled(Which happens now) but I also want it to autoselect the "Citys" radio button. https://codesandbox.io/s/competent-austin-igz4uh?file=/src/App.js:0-1905

  What I have tried so far: I have tried using a useEffect to change when the select dropdown changes but it didn't work.

  import "./styles.css";
  import {
    FormControl,
    FormLabel,
    RadioGroup,
    Radio,
    FormControlLabel,
    InputLabel,
    Select,
    MenuItem
  } from "@material-ui/core";
  import React, { useState, useEffect } from "react";
  export default function App() {
    const [chosenSorting, setChosenSorting] = useState("colors");
    const [sortingType, setSortingType] = useState("both");
    function handleChange(event) {
      setChosenSorting(event.target.value);
    }
    useEffect(() => {
      if (chosenSorting === "colors") {
        setSortingType("colors");
      }
    }, [chosenSorting]);
    return (
      <>
        <FormControl fullWidth>
          <InputLabel id="demo-simple-select-label">Chosen Sorting</InputLabel>
          <Select
            labelId="demo-simple-select-label"
            id="demo-simple-select"
            value={chosenSorting}
            label="Chosen Sorting"
            onChange={handleChange}
          >
            <MenuItem value={"colors"}>Colors</MenuItem>
            <MenuItem value={"buildings"}>Buildings</MenuItem>
          </Select>
        </FormControl>
        <FormControl>
          <FormLabel id="demo-radio-buttons-group-label">
            Fylke or Kommune
          </FormLabel>
          <RadioGroup
            row
            defaultValue="both"
            onChange={(e) => setSortingType(e.target.value)}
          >
            <FormControlLabel
              disabled={chosenSorting === "buildings"}
              control={<Radio />}
              value="both"
              label="Both"
            ></FormControlLabel>
            <FormControlLabel
              control={<Radio />}
              disabled={chosenSorting === "buildings"}
              value="colors"
              label="Colors"
            ></FormControlLabel>
            <FormControlLabel
              control={<Radio />}
              value="citys"
              label="Citys"
            ></FormControlLabel>
          </RadioGroup>
        </FormControl>
      </>
    );
  }
  
• MUI/Icon makes everything dissapear

  When I try to import and use a mui icon in react, it makes the whole div dissapear, and just the background image remain, i have installed: emotion/react, emotion/styled, mui/icons-material, mui/material, styled-components, mui/styled-engine-sc

          <div className="login">
          <h1>Login</h1>
          <div className="form">
              <EmailIcon className='icon'/>
              <input type="text" placeholder="Email"></input>
              <input type="password" placeholder='Password'></input>
          </div>
          <div className="buttons">
              <button id='login'>Login</button>
              <button id='register'>Register</button>
          </div>
      </div>
  )