안드로이드 실습

 

mainActivity.java 에 추가 

 

    @Override

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

       super.onActivityResult(requestCode, resultCode, data);

       if (requestCode == 10001) {

           if (resultCode == SUCCESS) {

              ((TextView) findViewById(R.id.tv_selected_phone)).setText(data

                      .getStringExtra(SELECTED_PHONE));

           } else {

              ((TextView) findViewById(R.id.tv_selected_phone)).setText("");

           }

       }

    }

 

    private void showContactlist() {

       Intent intent = new Intent(MainActivity.this, ContactListActivity.class)

               .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP

                     | Intent.FLAG_ACTIVITY_SINGLE_TOP);

 

       startActivityForResult(intent, 10001);

    }

 

ContactListActivity.java 생성

 

public class ContactListActivity extends Activity {

 

    private ListView lv_contactlist;

 

    @Override

    protected void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_contactlist);

       lv_contactlist = (ListView) findViewById(R.id.lv_contactlist);

    }

 

    @Override

    protected void onResume() {

       super.onResume();

   

 

       ContactsAdapter adapter = new ContactsAdapter(ContactListActivity.this,

               R.layout.layout_phonelist, getContactList());

 

       lv_contactlist.setAdapter(adapter);

       lv_contactlist

              .setOnItemClickListener(new AdapterView.OnItemClickListener() {

 

                  public void onItemClick(AdapterView<?> contactlist, View v,

                         int position, long resid) {

                     Contact phonenumber = (Contact) contactlist

                             .getItemAtPosition(position);

 

                     if (phonenumber == null) {

                         return;

                     }

 

                     Intent data = new Intent();

                      data.putExtra(MainActivity.SELECTED_PHONE, phonenumber

                             .getPhonenum().replaceAll("-", ""));

 

                      setResult(MainActivity.SUCCESS, data);

                     finish();

                  }

              });

 

    }

    private ArrayList<Contact> getContactList() {

 

       Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;

 

       String[] projection = new String[] {

           ContactsContract.CommonDataKinds.Phone.CONTACT_ID,

               ContactsContract.CommonDataKinds.Phone.NUMBER,

           ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME };

 

       String[] selectionArgs = null;

 

       String sortOrder = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME

              + " COLLATE LOCALIZED ASC";

 

       Cursor contactCursor = managedQuery(uri, projection, null,

              selectionArgs, sortOrder);

 

       ArrayList<Contact> contactlist = new ArrayList<Contact>();

 

       if (contactCursor.moveToFirst()) {

           do {

              String phonenumber = contactCursor.getString(1).replaceAll("-",

                     "");

              if (phonenumber.length() == 10) {

                  phonenumber = phonenumber.substring(0, 3) + "-"

                        + phonenumber.substring(3, 6) + "-"

                         + phonenumber.substring(6);

             } else if (phonenumber.length() > 8) {

                  phonenumber = phonenumber.substring(0, 3) + "-"

                        + phonenumber.substring(3, 7) + "-"

                         + phonenumber.substring(7);

              }

 

              Contact acontact = new Contact();

               acontact.setPhotoid(contactCursor.getLong(0));

              acontact.setPhonenum(phonenumber);

               acontact.setName(contactCursor.getString(2));

 

              contactlist.add(acontact);

           } while (contactCursor.moveToNext());

       }

 

       return contactlist;

 

    }

 

    private class ContactsAdapter extends ArrayAdapter<Contact> {

 

       private int resId;

       private ArrayList<Contact> contactlist;

       private LayoutInflater Inflater;

       private Context context;

 

       public ContactsAdapter(Context context, int textViewResourceId,

              List<Contact> objects) {

           super(context, textViewResourceId, objects);

           this.context = context;

           resId = textViewResourceId;

           contactlist = (ArrayList<Contact>) objects;

           Inflater = (LayoutInflater) ((Activity) context)

              .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

       }

 

       @Override

       public View getView(int position, View v, ViewGroup parent) {

           ViewHolder holder;

           if (v == null) {

              v = Inflater.inflate(resId, null);

              holder = new ViewHolder();

              holder.tv_name = (TextView) v.findViewById(R.id.tv_name);

              holder.tv_phonenumber = (TextView) v

                      .findViewById(R.id.tv_phonenumber);

              holder.iv_photoid = (ImageView) v.findViewById(R.id.iv_photo);

              v.setTag(holder);

           } else {

              holder = (ViewHolder) v.getTag();

           }

 

           Contact acontact = contactlist.get(position);

 

           if (acontact != null) {

               holder.tv_name.setText(acontact.getName());

           holder.tv_phonenumber.setText(acontact.getPhonenum());

 

              Bitmap bm = openPhoto(acontact.getPhotoid());

              if (bm != null) {

                  holder.iv_photoid.setImageBitmap(bm);

              } else {

              holder.iv_photoid.setImageDrawable(getResources()

                         .getDrawable(R.drawable.ic_launcher));

              }

 

           }

 

           return v;

       }

 

       private Bitmap openPhoto(long contactId) {

           Uri contactUri = ContentUris.withAppendedId(Contacts.CONTENT_URI,

                  contactId);

           InputStream input = ContactsContract.Contacts

              .openContactPhotoInputStream(context.getContentResolver(),

                         contactUri);

 

           if (input != null) {

              return BitmapFactory.decodeStream(input);

           }

 

           return null;

       }

 

       private class ViewHolder {

           ImageView iv_photoid;

           TextView tv_name;

           TextView tv_phonenumber;

       }

 

    }

}

 

 

Contact.Java 생성

 

public class Contact {

    long photoid;

    String phonenum;

    String name;

   

    public long getPhotoid() {

       return photoid;

    }

    public void setPhotoid(long photoid) {

       this.photoid = photoid;

    }

    public String getPhonenum() {

       return phonenum;

    }

    public void setPhonenum(String phonenum) {

       this.phonenum = phonenum;

    }

    public String getName() {

       return name;

    }

    public void setName(String name) {

       this.name = name;

    }

}

 

activity_contactlist.xml

<?xml version="1.0" encoding="utf-8"?>
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/lv_contactlist"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

</ListView>

layout_phonelist.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="horizontal" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#FFFFFFFF"
        android:gravity="center_vertical"
        android:weightSum="10" >

        <ImageView
            android:id="@+id/iv_photo"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:scaleType="fitXY" />

        <TextView
            android:id="@+id/tv_name"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="4"
            android:singleLine="true"
            android:text="아무개"
            android:textSize="20sp" />

        <TextView
            android:id="@+id/tv_phonenumber"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="6"
            android:singleLine="true"
            android:text="000-0000-0000"
            android:textSize="20sp" />
    </LinearLayout>

</LinearLayout>