Monday, March 25, 2013

Connecting ListView To Database

In this post I will describe how to connect ListView with database.
ListView can be populated by ArrayAdapter, Custom Adapter, ArrayList etc


Have a look at my previous post
Populating ListView with Custom Adapter
Populating ListView with ArrayList


ListView with DataBase Example


In this example I have created a listView  and populated it with DataBAse.
Each of the ListView item contain two views
TextView SMS Sender : to show SMS Sender Number
TextView SMSBody : to show the SMS Body/content

Here the ListView shows the all the SMSes with Sender Number and SMSBody.


Add the following permission in your manifest file to read the SMS..
   <uses-permission android:name="android.permission.READ_SMS"/>
   <uses-permission android:name="android.permission.WRITE_SMS"/>


listview_activity_main.xml


<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#D1FFFF"
    android:orientation="vertical">
   
   
    <ListView
        android:id="@+id/listViewSMS"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:dividerHeight="0.1dp"
        android:divider="#0000CC"
        >
    </ListView>
   
  </LinearLayout>



listview_each_item.xml


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textViewSMSSender"
        android:paddingLeft="2dp"
        android:textSize="20dp"
        android:textStyle="bold"
        android:textColor="#0000FF"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

    <TextView
        android:id="@+id/textViewMessageBody"
        android:paddingLeft="5dp"
        android:textColor="#5C002E"
        android:textSize="17dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

</LinearLayout>
   
  </LinearLayout>




ListViewWithDatabaseActivity 


public class ListViewWithDatabaseActivity extends Activity
{

   
        ListView listViewPhoneBook;
        Context context;
         @Override
        protected void onCreate(Bundle savedInstanceState)
         {
                 super.onCreate(savedInstanceState);
                 setContentView(R.layout.listview_activity_main);
                 context=this;
                 //get the ListView Reference
                 listViewSMS=(ListView)findViewById(R.id.listViewSMS);
                

                  //arrayColumns is the column name in your cursor where you're getting the data 
                  // here we are displaying  SMSsender Number i.e. address and SMSBody i.e. body

                  String[] arrayColumns = new String[]{"address","body"};
                  //arrayViewID contains the id of textViews
                  // you can add more Views as per Requirement
                  // textViewSMSSender is connected to "address" of arrayColumns
                  // textViewMessageBody is connected to "body"of arrayColumns

                  int[] arrayViewIDs = new int[]{R.id.textViewSMSSender,R.id.textViewMessageBody};
                    
                    
                  Cursor cursor;
                  
                    cursor = getContentResolver().query(Uri.parse("content://sms/inbox"), null, null, null, null);
                  
                // create an Adapter with arguments layoutID, Cursor, Array Of Columns, and Array of ViewIds which is to be Populated
                  
                 SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.listview_each_item, cursor, arrayColumns, arrayViewIDs);
                 listViewSMS.setAdapter(adapter);
                
                
                
                 // To handle the click on List View Item
                 listViewSMS.setOnItemClickListener(new OnItemClickListener()
                {
                   
                                public void onItemClick(AdapterView<?> arg0, View v,int position, long arg3)
                                {
                                    // when user clicks on ListView Item , onItemClick is called
                                    // with position and View of the item which is clicked
                                    // we can use the position parameter to get index of clicked item

                                    TextView textViewSMSSender=(TextView)v.findViewById(R.id.textViewSMSSender);
                                    TextView textViewSMSBody=(TextView)v.findViewById(R.id.textViewMessageBody);
                                    String smsSender=textViewSMSSender.getText().toString();
                                    String smsBody=textViewSMSBody.getText().toString();
                                  
                                    // Show The Dialog with Selected SMS
                                    AlertDialog dialog = new AlertDialog.Builder(context).create();
                                    dialog.setTitle("SMS From : "+smsSender);
                                    dialog.setIcon(android.R.drawable.ic_dialog_info);
                                    dialog.setMessage(smsBody);
                                    dialog.setButton(DialogInterface.BUTTON_POSITIVE, "OK",
                                            new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int which)
                                        {
                                      
                                                dialog.dismiss();
                                                return;
                                    }  
                                    });
                                    dialog.show();
                                }
                               
                            });
             }
 }


ListView with Custom Adapter


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