Android Custom CheckBox
Android provides facility to customize the UI of view elements rather than default.
You are able to create custom CheckBox in android. So, you can add some different images of checkbox on the layout.
Example of Custom CheckBox
In this example, we create both default as well as custom checkbox. Add the following code in activity_main.xml file.
activity_main.xml
File: activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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="example.javatpoint.com.customcheckbox.MainActivity">
<TextView
android:id="@+id/textView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:textSize="25dp"
android:text="Default Check Box"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New CheckBox"
android:id="@+id/checkBox"
android:layout_below="@+id/textView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="46dp" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New CheckBox"
android:id="@+id/checkBox2"
android:layout_below="@+id/checkBox"
android:layout_alignLeft="@+id/checkBox"
android:layout_alignStart="@+id/checkBox" />
<View
android:layout_width="fill_parent"
android:layout_height="1dp"
android:layout_marginTop="200dp"
android:background="#B8B894"
android:id="@+id/viewStub" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="CheckBox 1"
android:id="@+id/checkBox3"
android:button="@drawable/customcheckbox"
android:layout_below="@+id/viewStub"
android:layout_centerHorizontal="true"
android:layout_marginTop="58dp" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="CheckBox 2"
android:id="@+id/checkBox4"
android:button="@drawable/customcheckbox"
android:layout_below="@+id/checkBox3"
android:layout_alignLeft="@+id/checkBox3"
android:layout_alignStart="@+id/checkBox3" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="25dp"
android:text="Custom Check Box"
android:id="@+id/textView"
android:layout_alignTop="@+id/viewStub"
android:layout_centerHorizontal="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show Checked"
android:id="@+id/button"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
<RelativeLayout 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="example.javatpoint.com.customcheckbox.MainActivity">
<TextView
android:id="@+id/textView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:textSize="25dp"
android:text="Default Check Box"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New CheckBox"
android:id="@+id/checkBox"
android:layout_below="@+id/textView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="46dp" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New CheckBox"
android:id="@+id/checkBox2"
android:layout_below="@+id/checkBox"
android:layout_alignLeft="@+id/checkBox"
android:layout_alignStart="@+id/checkBox" />
<View
android:layout_width="fill_parent"
android:layout_height="1dp"
android:layout_marginTop="200dp"
android:background="#B8B894"
android:id="@+id/viewStub" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="CheckBox 1"
android:id="@+id/checkBox3"
android:button="@drawable/customcheckbox"
android:layout_below="@+id/viewStub"
android:layout_centerHorizontal="true"
android:layout_marginTop="58dp" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="CheckBox 2"
android:id="@+id/checkBox4"
android:button="@drawable/customcheckbox"
android:layout_below="@+id/checkBox3"
android:layout_alignLeft="@+id/checkBox3"
android:layout_alignStart="@+id/checkBox3" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="25dp"
android:text="Custom Check Box"
android:id="@+id/textView"
android:layout_alignTop="@+id/viewStub"
android:layout_centerHorizontal="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show Checked"
android:id="@+id/button"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
Now implement a selector in another file (checkbox.xml) under drawable folder which customizes the checkbox.
checkbox.xml
File: checkbox.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:drawable="@drawable/checked" />
<item android:state_checked="false" android:drawable="@drawable/unchecked"/>
</selector>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:drawable="@drawable/checked" />
<item android:state_checked="false" android:drawable="@drawable/unchecked"/>
</selector>
Activity class
File: MainActivity.java
package example.javatpoint.com.customcheckbox;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
CheckBox cb1,cb2;
Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
cb1=(CheckBox)findViewById(R.id.checkBox3);
cb2=(CheckBox)findViewById(R.id.checkBox4);
button=(Button)findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
StringBuilder sb=new StringBuilder("");
if(cb1.isChecked()){
String s1=cb1.getText().toString();
sb.append(s1);
}
if(cb2.isChecked()){
String s2=cb2.getText().toString();
sb.append("\n"+s2);
}
if(sb!=null && !sb.toString().equals("")){
Toast.makeText(getApplicationContext(), sb, Toast.LENGTH_LONG).show();
}
else{
Toast.makeText(getApplicationContext(),"Nothing Selected", Toast.LENGTH_LONG).show();
}
}
});
}
}
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
CheckBox cb1,cb2;
Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
cb1=(CheckBox)findViewById(R.id.checkBox3);
cb2=(CheckBox)findViewById(R.id.checkBox4);
button=(Button)findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
StringBuilder sb=new StringBuilder("");
if(cb1.isChecked()){
String s1=cb1.getText().toString();
sb.append(s1);
}
if(cb2.isChecked()){
String s2=cb2.getText().toString();
sb.append("\n"+s2);
}
if(sb!=null && !sb.toString().equals("")){
Toast.makeText(getApplicationContext(), sb, Toast.LENGTH_LONG).show();
}
else{
Toast.makeText(getApplicationContext(),"Nothing Selected", Toast.LENGTH_LONG).show();
}
}
});
}
}
Output
