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Android Datepicker Example

Android Datepicker Example

activity_main.xml

File: activity_main.xml
  1. <RelativeLayout xmlns:androclass="http://schemas.android.com/apk/res/android"  
  2.     xmlns:tools="http://schemas.android.com/tools"  
  3.     android:layout_width="match_parent"  
  4.     android:layout_height="match_parent"  
  5.     tools:context=".MainActivity" >  
  6.   
  7.     <TextView  
  8.         android:id="@+id/textView1"  
  9.         android:layout_width="wrap_content"  
  10.         android:layout_height="wrap_content"  
  11.         android:layout_alignParentLeft="true"  
  12.         android:layout_alignParentTop="true"  
  13.         android:layout_marginLeft="50dp"  
  14.         android:layout_marginTop="36dp"  
  15.         android:text="Current Date:" />  
  16.   
  17.     <Button  
  18.         android:id="@+id/button1"  
  19.         android:layout_width="wrap_content"  
  20.         android:layout_height="wrap_content"  
  21.         android:layout_alignParentBottom="true"  
  22.         android:layout_centerHorizontal="true"  
  23.         android:layout_marginBottom="140dp"  
  24.         android:text="Change Date" />  
  25.   
  26.     <DatePicker  
  27.         android:id="@+id/datePicker1"  
  28.         android:layout_width="wrap_content"  
  29.         android:layout_height="wrap_content"  
  30.         android:layout_above="@+id/button1"  
  31.         android:layout_centerHorizontal="true"  
  32.         android:layout_marginBottom="30dp" />  
  33.   
  34. </RelativeLayout>  

Activity class

File: MainActivity.java
  1. package com.example.datepicker2;  
  2.   
  3. import android.os.Bundle;  
  4. import android.app.Activity;  
  5. import android.view.Menu;  
  6. import android.view.View;  
  7. import android.view.View.OnClickListener;  
  8. import android.widget.Button;  
  9. import android.widget.DatePicker;  
  10. import android.widget.TextView;  
  11. import android.widget.Toast;  
  12.   
  13. public class MainActivity extends Activity {  
  14.     DatePicker picker;  
  15.     Button displayDate;  
  16.     TextView textview1;  
  17.     @Override  
  18.     protected void onCreate(Bundle savedInstanceState) {  
  19.         super.onCreate(savedInstanceState);  
  20.         setContentView(R.layout.activity_main);  
  21.           
  22.         textview1=(TextView)findViewById(R.id.textView1);  
  23.         picker=(DatePicker)findViewById(R.id.datePicker1);  
  24.         displayDate=(Button)findViewById(R.id.button1);  
  25.           
  26.         textview1.setText(getCurrentDate());  
  27.           
  28.         displayDate.setOnClickListener(new OnClickListener(){  
  29.             @Override  
  30.             public void onClick(View view) {  
  31.                 textview1.setText(getCurrentDate());  
  32.             }  
  33.               
  34.         });  
  35.     }  
  36.     public String getCurrentDate(){  
  37.         StringBuilder builder=new StringBuilder();  
  38.         builder.append("Current Date: ");  
  39.         builder.append((picker.getMonth() + 1)+"/");//month is 0 based  
  40.         builder.append(picker.getDayOfMonth()+"/");  
  41.         builder.append(picker.getYear());  
  42.         return builder.toString();  
  43.     }  
  44.     @Override  
  45.     public boolean onCreateOptionsMenu(Menu menu) {  
  46.         // Inflate the menu; this adds items to the action bar if it is present.  
  47.         getMenuInflater().inflate(R.menu.activity_main, menu);  
  48.         return true;  
  49.     }  
  50.   
  51. }  

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