Tips & Third Party Library for AndroidOLEH IBNU SINA WARDY

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Overview Action Bar

Sliding Menu

JSON Parsing

Tablet Dimension

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Action Bar

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Action Bar

ICS Froyo

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Action Bar

ICS Froyo

getActionBar().setDisplayHomeAsUpEnabled(true);

FORCE CLOSE

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Action Bar

ICS Froyo

getSupportActionBar().setDisplayHomeAsUpEnabled(true);

Library agar ActionBar tetap ada untuk device di bawah Honeycomb:

ActionBarSherlock http://actionbarsherlock.com

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Cara Pakai ActionBarSherlock

Import Project di Eclipse dan tambahkan sebagai library untuk aplikasi

Gunakan extend milik library◦ Activity SherlockActivity◦ Fragment SherlockFragment◦ FragmentActivity SherlockFragmentActivity◦ ListAcitivity SherlockListAcitivity

Untuk mengakses Action Bar, gunakan getSupportActionBar()

Pastikan gunakan class milik ActionBarSherlock◦ com.actionbarsherlock.app.ActionBar◦ com.actionbarsherlock.view.Menu◦ com.actionbarsherlock.view.MenuItem◦ com.actionbarsherlock.view.MenuInflater

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Sliding Menu

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Navigation Drawer

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Membuat Drawer Layout

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Membuat Aksi Buka / Tutup

DrawerLayout mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,                R.drawable.ic_drawer, R.string.drawer_open, R.string.drawer_close) {

            /** Called when a drawer has settled in a completely closed state. */            public void onDrawerClosed(View view) {                getActionBar().setTitle(mTitle);                invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()            }

            /** Called when a drawer has settled in a completely open state. */            public void onDrawerOpened(View drawerView) {                getActionBar().setTitle(mDrawerTitle);                invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()            }        };

        // Set the drawer toggle as the DrawerListener        mDrawerLayout.setDrawerListener(mDrawerToggle);

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Buka / Tutup dengan icon up

mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);        mDrawerToggle = new ActionBarDrawerToggle(                this,                  /* host Activity */                mDrawerLayout,         /* DrawerLayout object */                R.drawable.ic_drawer,  /* nav drawer icon to replace 'Up' caret */                R.string.drawer_open,  /* "open drawer" description */                R.string.drawer_close  /* "close drawer" description */                ) {

            /** Called when a drawer has settled in a completely closed state. */            public void onDrawerClosed(View view) {                getActionBar().setTitle(mTitle);            }

            /** Called when a drawer has settled in a completely open state. */            public void onDrawerOpened(View drawerView) {                getActionBar().setTitle(mDrawerTitle);            }        };

        // Set the drawer toggle as the DrawerListener        mDrawerLayout.setDrawerListener(mDrawerToggle);

        getActionBar().setDisplayHomeAsUpEnabled(true);        getActionBar().setHomeButtonEnabled(true);

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Library SlidingMenu Url: https://github.com/jfeinstein10/SlidingMenu

Lebih mudah diimplementasikan

Dapat membuat sliding menu di kiri dan di kanan

Tetapi:◦ Tidak mempunyai icon garis tiga di actionbar◦ Menu tidak floating di atas konten

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Penggunakan SlidingMenu

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JSON Parsing

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JSON

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Basic Parsing

JSONObject jObj = new JSONObject(strFromUrl);int id = jObj.getInt("id");String name = jObj.getString("name");String address = jObj.getString("address");String contact = jObj.getString("contact");//.... dan seterusnya

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Gson Unduh library Gson

◦ https://code.google.com/p/google-gson/

Ekstrak hasil unduh dan letakkan library jar ke folder libs di project

Buat kelas model yang mempresentasikan json yang akan diparsing

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Contoh kelas modelpublic class RestaurantDao {

String id;String name;String address;String contact;String links;String about;String lat;String lng;String currency;String minprice;String maxprice;

//.... dan seterusnya}

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Parsing menggunakan GsonGson gson = new Gson();RestaurantDao restaurant = gson.fromJson(strFromUrl, RestaurantDao.class);

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Tablet Dimension

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Dimension for TabletNexus S Galaxy Tab 10.1

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dimens.xml/values/dimens.xml

/values-sw600dp/dimens.xml

<resources> <dimen name=“text_14sp”>14sp</dimen> <dimen name=“dimen_10dp”>10dp</dimen></resources>

<resources> <dimen name=“text_14sp”>24sp</dimen> <dimen name=“dimen_10dp”>20dp</dimen></resources>

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Dimension compatibilityNexus S Galaxy Tab 10.1

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