I have implemented navigation drawer in a slightly different way in my app. But the drawer doesn't open or close smoothly. It lags in between. In Google apps, the navigation drawer is so smooth. How do I achieve it? This question is already asked here but it didn't meet my needs. Please help!
XML
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:background="#000000"
android:layout_height="match_parent" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Swipe from the left to open the drawer"
android:id="@+id/textView"
android:layout_gravity="center" />
</FrameLayout>
<LinearLayout
android:id="@+id/left_drawer_layout"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:layout_marginLeft="-65dp"
android:background="#111"
android:orientation="vertical"
android:layout_gravity="start" >
<EditText
android:id="@+id/searchbar"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:textColor="#bfc2d1"
android:singleLine="true"
android:padding="10dp"
android:background="@drawable/search_bar"
android:layout_marginLeft="3dp"
android:layout_marginRight="3dp"
android:imeOptions="flagNoExtractUi"
android:hint="Search" >
</EditText>
<RelativeLayout
android:id="@+id/empty"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:layout_marginLeft="-65dp"
android:background="#111"
android:orientation="vertical"
android:layout_gravity="start" >
<TextView
android:id="@+id/empty_text"
android:text="@string/notfound"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:textColor="#ffababab"
android:textSize="15dp"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp"
android:gravity="center">
</TextView>
</RelativeLayout>
<ListView android:id="@+id/left_drawer"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp"
android:background="#111"/>
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
Java
public class MainActivity extends FragmentActivity {
final String[] data ={"Hydrogen","Helium","Lithium","Beryllium","Boron","Carbon","Nitrogen","Oxygen","Flourine","Noen","Sodium","Magnesium","Aluminium","Silicon","Phosphorous","Sulphur","Chlorine","Argon","Potassium","Calcium","Scandium","Titanium","Vanadium","Chromium","Manganese","Iron","Cobalt","Nickel","Copper","Zinc","Gallium","Germanium","Arsenic","Selenium","Bromine","Krypton","Rubidium","Strontium","Yttrium","Zirconium","Niobium","Molybdenum","Technetium","Ruthenium","Rhodium","Palladium","Silver","Cadmium","Indium","Tin","Antimony","Tellurium",
"Iodine","Xenon","Caesium","Barium","Lanthanum","Cerium","Praseodymium","Neodymium","Promethium","Samarium","Europium","gadoliium","Terbium","Dysprosium","Holmium","Erbium","Thulium","Ytterbium","Lutetium","Hafnium","Tantalum","Tungsten","Rhenium","Osmium","Iridium","Platinum","Gold","Mercury","Thallium","Lead","Bismuth","Polonium","Astatine","Radon","Francium","Radium","Actinium","Thorium","Protactinium","Uranium","Neptunium","Plutonium","Americium","Curium","Berkelium","Californium","Einstenium","Fermium","Mendelevium","Nobelium","Lawrencium","Rutherfordium","Dubnium","Seaborgium","Bohrium","Hassium",
"Meitnerium","Darmstadtium","Roentgenium","Copernicium","Ununtrium","Ununquadium","Ununpentium","Ununhexium","Ununseptium","Ununoctium"};
ArrayAdapter<String> adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, data);
final EditText searchBar = (EditText) findViewById(R.id.searchbar);
final DrawerLayout drawer = (DrawerLayout)findViewById(R.id.drawer_layout);
final ListView navList = (ListView) findViewById(R.id.left_drawer);
final LinearLayout linearLayout = (LinearLayout)findViewById(R.id.left_drawer_layout);
navList.setAdapter(adapter);
navList.setOnItemClickListener(new AdapterView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> parent, View view, final int pos,long id){
drawer.closeDrawer(linearLayout);
}
});
//filter list view after search instantly
searchBar.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
String searchedquery = cs.toString().replaceAll(" ", "");
MainActivity.this.adapter.getFilter().filter(searchedquery);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,int arg3) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
//hide the keyboard after search on touch list view
navList.setOnScrollListener(new AbsListView.OnScrollListener() {
public void onScrollStateChanged(AbsListView view, int scrollState) {
//hide keyboard
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(navList.getWindowToken(), 0);
}
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
}
});
navList.setEmptyView(findViewById(R.id.empty));
}
}
