Here I am going to explain how to clear all the EditText Fields in a single Button click
Step 1)Open res->layout->activity_main.xml;
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/allClear"
android:id="@+id/allClear"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.clear_edittext.MainActivity" >
<TextView
android:id="@+id/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Android Dhina Textwatcher Example" />
<EditText
android:id="@+id/editext1"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_below="@+id/android"
android:layout_marginTop="50dp"
android:textColor="#000000" />
<EditText
android:id="@+id/editext2"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_below="@+id/editext1"
android:layout_marginTop="50dp"
android:textColor="#000000" />
<EditText
android:id="@+id/editext3"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_below="@+id/editext2"
android:layout_marginTop="50dp"
android:textColor="#000000" />
<Button
android:id="@+id/clear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:layout_below="@+id/editext3"
android:text="Clear" >
</Button>
<Button
android:id="@+id/clear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:layout_below="@+id/editext3"
android:text="Clear" >
</Button>
</RelativeLayout >
Step 2)Activity Class
package com.example.clear_edittext;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity
{
EditText editext1,editext2,editext3;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editext1=(EditText)findViewById(R.id.editext1);
editext2=(EditText)findViewById(R.id.editext2);
editext3=(EditText)findViewById(R.id.editext3);
Button Clear=(Button)findViewById(R.id.Clear);
Clear.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v)
{
ViewGroup group = (ViewGroup) findViewById(R.id.allClear);
clearEditext(group );
}
});
}
private void clearEditext(ViewGroup group)
{
for (int i = 0, count = group.getChildCount(); i < count; ++i) {
View view = group.getChildAt(i);
if (view instanceof EditText) {
((EditText)view).setText("");
}
if(view instanceof ViewGroup&& (((ViewGroup)view).getChildCount() > 0))
clearEditext((ViewGroup)view);
}
}
}
editext3=(EditText)findViewById(R.id.editext3);
Button Clear=(Button)findViewById(R.id.Clear);
Clear.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v)
{
ViewGroup group = (ViewGroup) findViewById(R.id.allClear);
clearEditext(group );
}
});
}
private void clearEditext(ViewGroup group)
{
for (int i = 0, count = group.getChildCount(); i < count; ++i) {
View view = group.getChildAt(i);
if (view instanceof EditText) {
((EditText)view).setText("");
}
if(view instanceof ViewGroup&& (((ViewGroup)view).getChildCount() > 0))
clearEditext((ViewGroup)view);
}
}
}
Happy Coding :)
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