Kanvas Kuliah: October 2014

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>

</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

Kanvas Kuliah

Saturday, October 18, 2014

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