Notes

package com.example.whoami.tugascontact;

import android.Manifest;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.provider.ContactsContract;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Adapter;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;
import android.widget.Toast;

import java.net.URI;
import java.util.ArrayList;

public class Contact extends AppCompatActivity implements View.OnClickListener{
private static final String TAG = Contact.class.getSimpleName();
private Button add, read;
ListView listview;
private TextView listview1;
private static final int PERMISSIONS_REQUEST_READ_CONTACTS = 100;
ArrayList<String> contacts;
String id, nama, nomer;
ArrayAdapter<CharSequence> adapter;
ArrayList<String> mArrayList;
ArrayAdapter<String> mAdapter;
int i=0;

Cursor cursor;


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contact);

add=(Button) findViewById(R.id.add);
read=(Button) findViewById(R.id.read);
listview=(ListView) findViewById(R.id.listview);
listview1 = (TextView)findViewById(R.id.txt);


ContentResolver resolver = getContentResolver();
cursor = resolver.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);

while (cursor.moveToNext()){
id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
nama = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));

Cursor phoneCursor = resolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=?", new String[]{id}, null);


while (phoneCursor.moveToNext()){
nomer = phoneCursor.getString(phoneCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

}

}



add.setOnClickListener(this);
read.setOnClickListener(this);



}


@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.add:
Intent add=new Intent(Contact.this,saveContact.class);

startActivity(add);
finish();
break;

case R.id.read:

// cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
// startManagingCursor(cursor);

//String contactName = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
//String contactNumber = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

String[] list = {"Nama : "+nama + "n"+"Nomer : " +nomer};

//2.inisiasi ArrayList sebagai wadah dari List kita
//mArrayList = new ArrayList<String>();

//3.Inisiasi Adapter
// mAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,mArrayList);

//4.Set Adapter
//listview.setAdapter(mAdapter);

//5.Coba isi data

// mArrayList.add("nama: " + nama + "n" + "nomer: " + nomer);

// String[] list = {"Rian", "Rakhmad", "Faisal", "Ramdani", "Azzat", "Oktavian"};
//int [] to = {android.R.id.text1,android.R.id.text2};
//SimpleCursorAdapter listadapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_2, cursor, list, to);
//listview.setAdapter(listadapter);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, list);
listview.setAdapter(adapter);




listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent sms = new Intent(getBaseContext(), sms.class);
sms.putExtra("no", nomer);
startActivityForResult(sms, 2);
}
});

break;

}


}




//batas
}