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How to define a MIN and MAX value for EditText in Android?
This example demonstrate about How to define a MIN and MAX value for EditText in Android.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.java
<? xml version= "1.0" encoding= "utf-8" ?> <RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android" xmlns: tools = "http://schemas.android.com/tools" android :layout_width= "match_parent" android :layout_height= "match_parent" android :layout_margin= "16dp" tools :context= ".MainActivity" > <EditText android :id= "@+id/editText" android :layout_width= "match_parent" android :layout_height= "wrap_content" android :hint= "Enter number between 1-99" android :inputType= "number" tools :ignore= "Autofill" /> </RelativeLayout>
Step 3 − Add the following code to src/MinMaxFilter.java
package app.tutorialspoint.com.sample ; import android.text.InputFilter ; import android.text.Spanned ; public class MinMaxFilter implements InputFilter { private int mIntMin , mIntMax ; public MinMaxFilter ( int minValue , int maxValue) { this . mIntMin = minValue ; this . mIntMax = maxValue ; } public MinMaxFilter (String minValue , String maxValue) { this . mIntMin = Integer. parseInt (minValue) ; this . mIntMax = Integer. parseInt (maxValue) ; } @Override public CharSequence filter (CharSequence source , int start , int end , Spanned dest ,int dstart , int dend) { try { int input = Integer. parseInt (dest.toString() + source.toString()) ; if (isInRange( mIntMin , mIntMax , input)) return null; } catch (NumberFormatException e) { e.printStackTrace() ; } return "" ; } private boolean isInRange ( int a , int b , int c) { return b > a ? c >= a && c <= b : c >= b && c <= a ; } }
Step 4 − Add the following code to src/MainActivity.java
package app.tutorialspoint.com.sample ; import android.os.Bundle ; import android.support.v7.app.AppCompatActivity ; import android.text.InputFilter ; import android.widget.EditText ; public class MainActivity extends AppCompatActivity { @Override protected void onCreate (Bundle savedInstanceState) { super .onCreate(savedInstanceState) ; setContentView(R.layout. activity_main ) ; EditText editText = findViewById(R.id. editText ) ; editText.setFilters( new InputFilter[]{ new MinMaxFilter( "1" , "99" )}) ; } }
Step 5 − Add the following code to androidManifest.xml
<? xml version= "1.0" encoding= "utf-8" ?> <manifest xmlns: android = "http://schemas.android.com/apk/res/android" package= "app.tutorialspoint.com.sample" > <uses-permission android :name= "android.permission.CALL_PHONE" /> <application android :allowBackup= "true" android :icon= "@mipmap/ic_launcher" android :label= "@string/app_name" android :roundIcon= "@mipmap/ic_launcher_round" android :supportsRtl= "true" android :theme= "@style/AppTheme" > <activity android :name= ".MainActivity" > <intent-filter> <action android :name= "android.intent.action.MAIN" /> <category android :name= "android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen –
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