How to Set Minimum and Maximum Input Value in EditText in Android?

In Android, Editext is a subclass of textview. Editext is used for giving textual input such as strings, characters, strings, numbers, etc. Editext is generally used for getting text data. In Edittext not limited to entered characters or others. In This article, we will show you how you could set a minimum and a maximum input value in the edit text of mobile application.

Here is the step by step Implementation process:

Step 1: Create a new project in Android or you can use an already created project.

Step 2: Create an activity_main.xml file in your layout folder . path (res>layout)

implement the same invoke the following code inside activity_main.xml file.

 <?xml version="1.0" encoding="utf-8"?>
 <androidx.constraintlayout.widget.ConstraintLayout
    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:id="@+id/idRLContainer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/txtTitle"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        android:layout_marginTop="28dp"
        android:text="Candidroot solutions"
        android:textAlignment="center"
        android:textSize="18sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.842"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/editText"
        android:layout_width="match_parent"
        android:layout_height="50sp"
        android:layout_centerHorizontal="true"
        android:layout_marginStart="20dp"
        android:layout_marginTop="32dp"
        android:layout_marginEnd="20dp"
        android:gravity="center"
        android:hint="Enter number between 1-100"
        android:importantForAutofill="no"
        android:inputType="number"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/txtTitle" />

 </androidx.constraintlayout.widget.ConstraintLayout>

Step 3: Create an MainActivity.kt file in your package folder .

implement the same invoke the following code inside MainActivity.kt file.

 import android.os.Bundle
 import android.text.InputFilter
 import android.text.Spanned
 import android.widget.EditText
 import androidx.appcompat.app.AppCompatActivity


 class MainActivityone : AppCompatActivity() {
    
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main_activityone)

        val editText = findViewById<EditText>(R.id.editText)

        editText.filters = arrayOf<InputFilter>(MinMaxFilter(1, 100))
    }

    inner class MinMaxFilter() : InputFilter {
        private var intMin: Int = 0
        private var intMax: Int = 0
        
        //data pass of constructor
        constructor(minValue: Int, maxValue: Int) : this() {
            this.intMin = minValue
            this.intMax = maxValue
        }

        //filter method 
        override fun filter(source: CharSequence, start: Int, end: Int, dest: Spanned, dStart: Int, dEnd: Int): CharSequence? {
            try {
                val input = Integer.parseInt(dest.toString() + source.toString())
                if (isInRange(intMin, intMax, input)) {
                    return null
                }
            } catch (e: NumberFormatException) {
                e.printStackTrace()
            }
            return ""
        }

        private fun isInRange(a: Int, b: Int, c: Int): Boolean {
            return if (b > a) c in a..b else c in b..a
        }
    }
 }

How to Set Minimum and Maximum Input Value in EditText in Android?

Here is the step by step Implementation process:

Step 1: Create a new project in Android or you can use an already created project.

Step 2: Create an activity_main.xml file in your layout folder . path (res>layout)

Step 3: Create an MainActivity.kt file in your package folder .

Step 4: Output of above example

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