CODEWITHSUNDEEP
androidxmlandroid-layout
LEE
LEE

Reputation: 33

Android Button background color not changing on xml

I trying to change button background color on xml, but it doesn't changed.

here's my code

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:orientation="vertical">

<Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="#ff0000"/>

</LinearLayout>

enter image description here

I think it might be work fine, but it still purple color :(

Upvotes: 3

Views: 3842

Answers (5)

Đức L&#234; C&#244;ng
Đức L&#234; C&#244;ng

Reputation: 414

if it's not much important, change Button to TextView and set background, it's working as magicially ;))

Upvotes: 0

Khushboo Gandhi
Khushboo Gandhi

Reputation: 144

Ensure all your app dependencies in your build.gradle(app) file are latest.

The latest as of 4th Feb 2021 in android studio 4.1.1 are the following

implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.android.material:material:1.2.1'
implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
testImplementation 'junit:junit:4.+'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'

Upvotes: 0

Ma Jeed
Ma Jeed

Reputation: 912

if you are using Android Studio 4.1.1 you are probably using Theme.MaterialComponents check your themes.xml file

enter image description here

so you have to use this attribute

android:backgroundTint="#ff0000"

read this documentation for more information:

https://material.io/components/buttons

If you insist on using android:background you can change your button xml code like this to force it using appcompat :

<androidx.appcompat.widget.AppCompatButton
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="#ff0000"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

or you can change the theme of all your project by changing the theme in themes.xml like this:

enter image description here

I hope this is useful.

Upvotes: 8

Mrudul Tora
Mrudul Tora

Reputation: 753

Use this in your java code.

button1.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#ff0000")));

Upvotes: 1

Monim Kaiser
Monim Kaiser

Reputation: 65

May be Android Studio is showing you the cached view for xml. Try changing Emulator from above where it is selected Custom as per your image. If it doesn't update the colour, try Invalidate Cache and Restart you Android Studio

Upvotes: 0

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