Aplikasi Contact Android

Cara Kerja
Aplikasi ini bekerja dengan cara membaca kontak yang terdapat pada HP dan kemudian menampilkan nya pada layar, pengguna juga dapat melakukan panggilan dengan cara meng-klik nomer yang muncul pada layar.

Source Code

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     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=".MainActivity" >     <ListView         android:id="@android:id/list"         android:layout_width="fill_parent"         android:layout_height="fill_parent" /> </RelativeLayout>

main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"            xmlns:tools="http://schemas.android.com/tools"            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=".MainActivity" >                   <ListView                android:id="@android:id/list"                android:layout_width="fill_parent"                android:layout_height="fill_parent" />               </RelativeLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.example.contactlistviewwithnamenumber"     android:versionCode="1"     android:versionName="1.0" >     <uses-sdk         android:minSdkVersion="L"         android:targetSdkVersion="18" />         <uses-permission android:name="android.permission.READ_CONTACTS"/>     <application         android:allowBackup="true"         android:icon="@drawable/ic_launcher"         android:label="@string/app_name"         android:theme="@style/AppTheme" >         <activity             android:name="com.example.contactlistviewwithnamenumber.MainActivity"             android:label="@string/app_name" >             <intent-filter>                 <action android:name="android.intent.action.MAIN" />                 <category android:name="android.intent.category.LAUNCHER" />             </intent-filter>         </activity>     </application> </manifest>

MainActivity.java

package com.example.contactlistviewwithnamenumber; import android.os.Bundle; import android.provider.ContactsContract; import android.app.Activity; import android.app.ListActivity; import android.database.Cursor; import android.graphics.drawable.GradientDrawable; import android.graphics.drawable.GradientDrawable.Orientation; import android.view.Menu; import android.widget.ListView; import android.widget.SimpleCursorAdapter; public class MainActivity extends ListActivity {               @Override        public long getSelectedItemId() {               // TODO Auto-generated method stub               return super.getSelectedItemId();        }        @Override        public int getSelectedItemPosition() {               // TODO Auto-generated method stub               return super.getSelectedItemPosition();        }               ListView lv;        Cursor cursor;               @Override        protected void onCreate(Bundle savedInstanceState) {               super.onCreate(savedInstanceState);               setContentView(R.layout.activity_main);               cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);               startManagingCursor(cursor);               String[] from = {ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, ContactsContract.CommonDataKinds.Phone.NUMBER, ContactsContract.CommonDataKinds.Phone._ID};               int[] to = {android.R.id.text1, android.R.id.text2};               AlternateRowCursorAdapter listadapter = new AlternateRowCursorAdapter(this, android.R.layout.simple_list_item_2, cursor, from, to);               setListAdapter(listadapter);                    lv = getListView();               int[] colors = {0, 0x00000000, 0};               lv.setDivider(new GradientDrawable(Orientation.RIGHT_LEFT, colors));               lv.setDividerHeight(1);               lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);                      }        @Override        public boolean onCreateOptionsMenu(Menu menu) {               getMenuInflater().inflate(R.menu.main, menu);               return true;        } }

AlternateRowCursorAdapter.java

package com.example.contactlistviewwithnamenumber; import android.content.Context; import android.database.Cursor; import android.graphics.Color; import android.view.View; import android.view.ViewGroup; import android.widget.SimpleCursorAdapter; public class AlternateRowCursorAdapter extends SimpleCursorAdapter{        private int[] colors = new int[] {               Color.parseColor("#F0F0F0"), Color.parseColor("#D2E4FC")        };               public AlternateRowCursorAdapter(Context context, int layout, Cursor c, String[] from, int[] to) {               super(context, layout, c, from, to);        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {               View view = super.getView(position, convertView, parent);               int colorPos = position % colors.length;               view.setBackgroundColor(colors[colorPos]);               return view;        } }

 

 Screenshot