activity_main.xml
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/rl"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp"
tools:context=".MainActivity"
android:background="#d8ddf7"
>
<!--
android:inputType="textCapCharacters"
Can be combined with text and its variations to request
capitalization of all characters. Corresponds to
TYPE_TEXT_FLAG_CAP_CHARACTERS.
-->
<EditText
android:id="@+id/et"
android:layout_width="250dp"
android:layout_height="wrap_content"
android:hint="Input your country"
android:padding="10dp"
android:inputType="textCapCharacters"
/>
<EditText
android:id="@+id/et_city"
android:layout_width="250dp"
android:layout_height="wrap_content"
android:hint="Input your City"
android:padding="10dp"
android:layout_below="@+id/et"
/>
</RelativeLayout>
MainActivity.java
package com.cfsuman.me.androidcodesnippets;
import android.os.Bundle;
import android.app.Activity;
import android.text.InputFilter;
import android.widget.EditText;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Get the widgets reference from XML layout
EditText et = (EditText) findViewById(R.id.et);
EditText et_city = (EditText) findViewById(R.id.et_city);
/*
setFilters(InputFilter[] filters)
Sets the list of input filters that will
be used if the buffer is Editable.
InputFilter.AllCaps
This filter will capitalize all the lower
case letters that are added through edits.
*/
et_city.setFilters(new InputFilter[]{new InputFilter.AllCaps()});
}
}

