Develop Reference

out of memory in MainActivity

Our application android use a lot of memory in MainActivity ( 32MB )
we don't know how to detect and specify where is exactly the problem
we try to comment all the code in MainActivity but No solution
Can someone help us to detect where the solution exactly in our Code ?
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private ArrayList<String> CodeBar = new ArrayList<>();
private ArrayList<Integer> id_Four = new ArrayList<>() ;
private ArrayList<String> nomProd = new ArrayList<>() ;
private ArrayList<String> prix = new ArrayList<>() ;
private ArrayList<String> nomFour = new ArrayList<>() ;
private ArrayList<String> adresse = new ArrayList<>() ;
private ArrayList<String> tel = new ArrayList<>() ;
private ArrayList<String> description = new ArrayList<>() ;
private ArrayList<Float> ratings = new ArrayList<>() ;
private ArrayList<Integer> images;
private BitmapFactory.Options options;
private ViewPager viewPager;
private View btnNext, btnPrev;
private FragmentStatePagerAdapter adapter;
private LinearLayout thumbnailsContainer;
private ShineButton deleteLast;
private final static ArrayList<Integer> resourceIDs = new ArrayList<>();
Intent historiqueIntent;
Activity activity;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
TextView title = (TextView) findViewById(R.id.title_promo);
title.setTypeface(title.getTypeface(), Typeface.ITALIC);
deleteLast =(ShineButton)findViewById(R.id.deleteAll);
final MaterialSpinner spinner_search = (MaterialSpinner) findViewById(R.id.spinner);
// final Spinner spinner_search = (Spinner) findViewById(R.id.spinner);
ShineButton btn_search = (ShineButton) findViewById(R.id.searchView);
// spinner_search.setDropdownHeight(1000);
spinner_search.setDropdownMaxHeight(1000);
historiqueIntent = new Intent(MainActivity.this , Histourique.class);
//ArrayAdapter adapter = ArrayAdapter.createFromResource(this,R.array.Ville,android.R.layout.simple_spinner_dropdown_item);
// spinner_search.setAdapter(adapter);
VilleRemember vill = new VilleRemember(getBaseContext() , "" , 0 );
spinner_search.setSelectedIndex(vill.getindiceSelected());
spinner_search.setOnItemSelectedListener(new MaterialSpinner.OnItemSelectedListener<String>() {
#Override public void onItemSelected(MaterialSpinner view, int position, long id, String item) {
VilleRemember vill = new VilleRemember(getBaseContext() , item,position );
vill.newSelectedVille(position,item);
}
});
btn_search.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(historiqueIntent);}});
activity=this;
final FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
//rotateAnimation(fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
lanceScane(activity);
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
#Override
protected void onResume()
{
// System.gc();
super.onResume();
}
//////////////////////////////////////
Timer timer;
int page = 1;
public void pageSwitcher(int seconds) {
timer = new Timer(); // At this line a new Thread will be created
timer.scheduleAtFixedRate(new RemindTask(), 0, seconds * 1000); // delay
// in
// milliseconds
}
// this is an inner class...
class RemindTask extends TimerTask {
#Override
public void run() {
// As the TimerTask run on a seprate thread from UI thread we have
// to call runOnUiThread to do work on UI thread.
runOnUiThread(new Runnable() {
public void run() {
if (page >= 4) { // In my case the number of pages are 5
// timer.cancel();
page = 0;
// viewPager.setCurrentItem(page--);
// Showing a toast for just testing purpose
/* Toast.makeText(getApplicationContext(), "Timer stoped",
Toast.LENGTH_LONG).show(); */
} else {
viewPager.setCurrentItem(page++);
}
}
});
}
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
// getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.accueil) {
// Handle the camera action
} else if (id == R.id.historique) {
Intent i = new Intent(this , Histourique.class);
startActivity(i);
} else if (id == R.id.prefere) {
Intent i = new Intent(this , Fav_class.class);
startActivity(i);
//overridePendingTransition(R.anim.slide_in_bottom,R.anim.slide_out_bottom);
} else if (id == R.id.parametre) {
Intent i = new Intent(this , Parametres.class);
startActivity(i);
} else if (id == R.id.propose_nous) {
startActivity(new Intent(MainActivity.this, About_us.class));
finish();
} else if (id == R.id.contactez_nous) {
Intent i = new Intent(this , contact_us.class);
startActivity(i);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
public void lanceScane(Activity activity)
{
IntentIntegrator integrator = new IntentIntegrator(activity);
integrator.setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES);
integrator.setPrompt("Scanner");
integrator.setCameraId(0);
integrator.setBeepEnabled(true);
integrator.setBarcodeImageEnabled(true);
integrator.initiateScan();
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
if(result != null) {
if(result.getContents() == null) {
Log.d("MainActivity", "Cancelled scan");
Toast.makeText(this, "Cancelled", Toast.LENGTH_LONG).show();
} else {
//historiqueIntent = new Intent(MainActivity.this , Histourique.class);
//historiqueIntent.putExtra("serial",result.getContents());
//startActivity(historiqueIntent);
Intent i = new Intent(MainActivity.this,RechercheResult1.class);
i.putExtra("CodeBar",result.getContents());
Historique his = new Historique(this , result.getContents());
his.insert(result.getContents());
his.remplireDateCode();
startActivity(i);
Toast.makeText(this, "Done! " , Toast.LENGTH_SHORT).show();
}
} else {
// This is important, otherwise the result will not be passed to the fragment
super.onActivityResult(requestCode, resultCode, data);
}
}
#Override
protected void onPause()
{
// System.gc();
super.onPause();
}
//------------------------------------------------------
private View.OnClickListener onClickListener(final int i) {
return new View.OnClickListener() {
#Override
public void onClick(View v) {
if (i > 0) {
//next page
if (viewPager.getCurrentItem() < viewPager.getAdapter().getCount() - 1) {
page++;
viewPager.setCurrentItem(viewPager.getCurrentItem() + 1);
}
} else {
//previous page
if (viewPager.getCurrentItem() > 0) {
page--;
viewPager.setCurrentItem(viewPager.getCurrentItem() - 1);
}
}
}
};
}
// images dyal les produit proposses :
private void inflateThumbnails() {
System.out.println("==========>"+CodeBar.size());
TextView title = (TextView) findViewById(R.id.title_promo);
if(CodeBar.size() == 0)
{
title.setVisibility(View.INVISIBLE);
deleteLast.setVisibility(View.INVISIBLE);
}
else
{
title.setVisibility(View.VISIBLE);
deleteLast.setVisibility(View.VISIBLE);
}
thumbnailsContainer.removeAllViews();
for (int i = 0; i < CodeBar.size(); i++) {
View imageLayout = getLayoutInflater().inflate(R.layout.cardview, null);
TextView price = (TextView) imageLayout.findViewById(R.id.prixprodtestcard);
TextView name = (TextView) imageLayout.findViewById(R.id.nomprodtestcard);
TextView namfou=(TextView) imageLayout.findViewById(R.id.qtestockcard);
TextView rating=(TextView)imageLayout.findViewById(R.id.rating);
ImageView imageProd = (ImageView) imageLayout.findViewById(R.id.imageprodcard);
FloatingActionButton btnlike = (FloatingActionButton) imageLayout.findViewById(R.id.likeButtoncard);
btnlike.setVisibility(View.INVISIBLE);
price.setText(prix.get(i));
name.setText(nomProd.get(i));
namfou.setText(nomFour.get(i));
rating.setText(ratings.get(i).toString());
imageProd.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
int action = event.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
// Disallow View pager to intercept touch events.
System.out.print("=============>ACTION_DOWN");
v.getParent().requestDisallowInterceptTouchEvent(true);
break;
case MotionEvent.ACTION_UP:
System.out.print("=============>ACTION_UP");
// Allow View pager to intercept touch events.
// v.getParent().requestDisallowInterceptTouchEvent(false);
break;
}
// Handle Listview touch events.
v.onTouchEvent(event);
return true;
}
});
Glide.with(this)
.load(new TagDatabase().URL_IMAGFOU+"fid="+id_Four.get(i)+"&&code="+CodeBar.get(i)+"&&etat= -99")
.diskCacheStrategy( DiskCacheStrategy.NONE )
.skipMemoryCache( true )
.placeholder(R.drawable.waitloat)
.thumbnail(0.1f)
.into(imageProd);
imageProd.setOnClickListener(onChagePageClickListener(i));
thumbnailsContainer.addView(imageLayout);
}
}
private View.OnClickListener onChagePageClickListener(final int i) {
return new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(getBaseContext(),InformationsProduit.class);
intent.putExtra("nomProd", nomProd.get(i));
intent.putExtra("prix", prix.get(i));
intent.putExtra("nomFour",nomFour.get(i));
intent.putExtra("etatpromo", -99);//attttt
intent.putExtra("telFour",tel.get(i));
intent.putExtra("addrFour",adresse.get(i));
intent.putExtra("idFour",id_Four.get(i));
intent.putExtra("description",description.get(i));
intent.putExtra("codeBar",CodeBar.get(i));
startActivity(intent);
}
};
}
}

Moving the Drawer Toggle From Left To Right in Action Bar

In my Activity I have a drawer list that pops from the right but I'm not able to move the drawer toggle from the left to the right side. Please if somebody can help me solve this issue.I just want to move the toggle to the right of the action bar.
package com.parse.starter;
import com.parse.ParseUser;
public class UserDrawer extends AppCompatActivity {
//Declaring Variables
private ListView DrawerList;
private ArrayAdapter<String> Adapter;
private ActionBarDrawerToggle DrawerToggle;
private DrawerLayout DrawerLayout;
private String ActivityTitle;
final ParseUser currentUser = ParseUser.getCurrentUser();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user_drawer);
DrawerList = (ListView) findViewById(R.id.navList);
DrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
ActivityTitle = getTitle().toString();
addDrawerItems();
setupDrawer();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
Button Sample = (Button) findViewById(R.id.button);
}
//Method To Add Items To The List View
private void addDrawerItems() {
String[] DArray = {"Job List", "Notifications", "Messages", "Log Out"};
Adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, DArray);
DrawerList.setAdapter(Adapter);
DrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (position == 0) {
Intent i0 = new Intent(UserDrawer.this, Set_Info.class);
startActivity(i0);
} else if (position == 1) {
//Intent i1 = new Intent(Drawer1.this, AddPatient.class);
//startActivity(i1);
} else if (position == 2) {
//Intent i2 = new Intent(Drawer1.this, Notifications.class);
//startActivity(i2);
} else if (position == 3) {
//Intent i3 = new Intent(Drawer1.this, Message_Log.class);
//startActivity(i3);
} else if (position == 4) {
Intent i4 = new Intent(UserDrawer.this, MainActivity.class);
startActivity(i4);
Toast.makeText(getApplicationContext(), "You are Logged Out", Toast.LENGTH_LONG).show();
finish();
}
}
});
}
private void setupDrawer() {
DrawerToggle = new ActionBarDrawerToggle(this, DrawerLayout,
R.string.drawer_open, R.string.drawer_close) {
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
getSupportActionBar().setTitle("Menu");
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
getSupportActionBar().setTitle(ActivityTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
};
DrawerToggle.setDrawerIndicatorEnabled(true);
DrawerLayout.setDrawerListener(DrawerToggle);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item != null && item.getItemId()==android.R.id.home){
if(DrawerLayout.isDrawerOpen(Gravity.RIGHT)){
//Notice the Gravity.Right
DrawerLayout.closeDrawer(Gravity.RIGHT);
}else{
DrawerLayout.openDrawer(Gravity.RIGHT);
}
}
return false;
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
DrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
DrawerToggle.onConfigurationChanged(newConfig);
}
#SuppressWarnings("ResourceType")
public void SampleClick(View view) {
try {
Intent i = new Intent(UserDrawer.this,Set_Info.class);
startActivity(i);
} catch (Exception e) {
}
}
}

android - nothing happening when navigation drawer icon is tapped

I followed a tutorial to set a navigation drawer and it worked in my main activity. Now I tried to move it to almost every other activity creating a BaseActivity, but after making changes, navigation drawer icon is inactive, and does nothing when pressed.
MainActivity code:
public class MainActivity extends BaseActivity {
private WebView mWebView;
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// DrawerLayout
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.string.drawer_open,
R.string.drawer_close) {
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
invalidateOptionsMenu();
}
};
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mWebView = (WebView) findViewById(R.id.activity_main_webview);
// Enable Javascript
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
//Hide the semy cirle at th bottom of the action bar when the user slides to the top
mWebView.setOverScrollMode(WebView.OVER_SCROLL_NEVER);
mWebView.getSettings().setLoadWithOverviewMode(true);
mWebView.getSettings().setUseWideViewPort(true);
//mainWebView.setWebViewClient(new WebViewClient());
mWebView.setWebViewClient(new WebViewClient() {
#Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
view.stopLoading(); // may not be needed
switch (Locale.getDefault().toString()) {
case "es_ES":
view.loadUrl("file:///android_asset/www/errorPage.forMainActivity.es_ES.HTML");
break;
default:
view.loadUrl("file:///android_asset/www/errorPage.forMainActivity.en_US.HTML");
break;
}
}
#Override
public void onPageFinished(WebView view, String url) {
//sendRegistrationIdToBackend();
//getCookies();
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.contains("CommentsPopUp")) {
Intent a = new Intent(MainActivity.this, CommentsPopUpActivity.class);
startActivity(a);
} else if (url.contains("postPopUp")) {
Intent b = new Intent(MainActivity.this, PostPopUpActivity.class);
startActivity(b);
} else if (url.contains("ProfilePicPopUp")) {
Intent c = new Intent(MainActivity.this, ProfilePicPopUpActivity.class);
startActivity(c);
} else if (url.contains("PostPicPopUp")) {
Intent c = new Intent(MainActivity.this, PostPicsPopUpActivity.class);
startActivity(c);
} else if (url.contains("reloadIndex")) {
mWebView.loadUrl("http://192.168.0.6/udazz/2.0/2.1/android/2.0/");
} else if (Uri.parse(url).getHost().length() == 0) {
return false;
} else { // Otherwise, give the default behavior (open in browser)
mWebView.loadUrl(url);
}
return true;
}
});
mWebView.loadUrl("http://192.168.0.6/udazz/2.0/2.1/android/2.0/");
// Stop local links and redirects from opening in browser instead of WebView
// mWebView.setWebViewClient(new MyAppWebViewClient());
}
#Override
public void onBackPressed(){
super.onBackPressed();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
return super.onOptionsItemSelected(item);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
}
public void getCookies() {
CookieManager cookieManager = CookieManager.getInstance();
String cookies = cookieManager.getCookie("http://192.168.0.6/");
//Log.i("UdazzT", cookies);
}
}
BaseActivity code:
public class BaseActivity extends AppCompatActivity {
ListView mDrawerList;
RelativeLayout mDrawerPane;
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
ArrayList<NavItem> mNavItems = new ArrayList<NavItem>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_base);
mNavItems.add(new NavItem(getResources().getString(R.string.myPosts), "", R.mipmap.ic_action_home));
mNavItems.add(new NavItem(getResources().getString(R.string.myFriends), "", R.mipmap.ic_action_about));
mNavItems.add(new NavItem(getResources().getString(R.string.findFriends), "", R.mipmap.ic_action_about));
mNavItems.add(new NavItem(getResources().getString(R.string.profileInfo), "", R.mipmap.ic_action_about));
mNavItems.add(new NavItem(getResources().getString(R.string.profilePic), "", R.mipmap.ic_action_about));
mNavItems.add(new NavItem(getResources().getString(R.string.notifications), "", R.mipmap.ic_action_settings));
mNavItems.add(new NavItem(getResources().getString(R.string.contact), "", R.mipmap.ic_action_settings));
mNavItems.add(new NavItem(getResources().getString(R.string.logOut), "", R.mipmap.ic_action_about));
// DrawerLayout
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
// Populate the Navigtion Drawer with options
mDrawerPane = (RelativeLayout) findViewById(R.id.drawerPane);
mDrawerList = (ListView) findViewById(R.id.navList);
DrawerListAdapter adapter = new DrawerListAdapter(this, mNavItems);
mDrawerList.setAdapter(adapter);
// Drawer Item click listeners
mDrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItemFromDrawer(position);
}
});
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.string.drawer_open,
R.string.drawer_close) {
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
invalidateOptionsMenu();
}
};
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_base, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Pass the event to ActionBarDrawerToggle
// If it returns true, then it has handled
// the nav drawer indicator touch event
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onBackPressed(){
if(mDrawerLayout.isDrawerOpen(Gravity.LEFT)){ //replace this with actual function which returns if the drawer is open
mDrawerLayout.closeDrawer(Gravity.LEFT); // replace this with actual function which closes drawer
}
else{
super.onBackPressed();
}
}
/*
* Called when a particular item from the navigation drawer
* is selected.
* */
private void selectItemFromDrawer(int position) {
switch (position) {
case 0:
Intent a = new Intent(this, MyPostsActivity.class);
startActivity(a);
break;
case 1:
Intent b = new Intent(this, MyFriendsActivity.class);
startActivity(b);
break;
case 2:
Intent c = new Intent(this, FindFriendsActivity.class);
startActivity(c);
break;
case 3:
Intent d = new Intent(this, MyProfileInfoActivity.class);
startActivity(d);
break;
case 5:
Intent f = new Intent(this, MyNotificationsActivity.class);
startActivity(f);
break;
case 6:
Intent g = new Intent(this, ContactActivity.class);
startActivity(g);
break;
case 7:
//mWebView.loadUrl("http://192.168.0.6/udazz/2.0/2.1/android/2.0/signOut.php");
break;
}
mDrawerList.setItemChecked(position, true);
//setTitle(mNavItems.get(position).mTitle);
// Close the drawer
mDrawerLayout.closeDrawer(mDrawerPane);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
}
class NavItem {
String mTitle;
String mSubtitle;
int mIcon;
public NavItem(String title, String subtitle, int icon) {
mTitle = title;
mSubtitle = subtitle;
mIcon = icon;
}
}
class DrawerListAdapter extends BaseAdapter {
Context mContext;
ArrayList<NavItem> mNavItems;
public DrawerListAdapter(Context context, ArrayList<NavItem> navItems) {
mContext = context;
mNavItems = navItems;
}
#Override
public int getCount() {
return mNavItems.size();
}
#Override
public Object getItem(int position) {
return mNavItems.get(position);
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view;
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.drawer_item, null);
}
else {
view = convertView;
}
TextView titleView = (TextView) view.findViewById(R.id.title);
TextView subtitleView = (TextView) view.findViewById(R.id.subTitle);
ImageView iconView = (ImageView) view.findViewById(R.id.icon);
titleView.setText(mNavItems.get(position).mTitle);
subtitleView.setText(mNavItems.get(position).mSubtitle);
iconView.setImageResource(mNavItems.get(position).mIcon);
return view;
}
}

i have given this answer.
refer to this https://stackoverflow.com/a/30490289/3498931 and
in your case, implement syncState() method after the setting the listener to mDrawerLayout.
mDrawerLayout.setDrawerListener(drawerToggle);
after this statement, use the code i given in link. also you have duplication of code, remove the code from class which is not applicable. both way it is possible, but keep one only whichever works to avoid further conflict, unreadability or confustion.

NavigationDrawer and Up Navigation

I implemented a BaseActivity which extends the ActionBarActivity and implements a NavigationDrawer. All my Activities are inheriting from this BaseActivity.
Im now wondering if i can implement a NavigationDrawer and still have the proper up navigation using the toolbar or is the device back button supposed to work as the up navigation button when i implemented a NavigationDrawer?
EDIT:
Custom NavigationDrawer with Toolbar
public abstract class NavigationActivity extends ActionBarActivity {
private Toolbar toolbar = null;
private DrawerLayout drawerLayout = null;
private ActionBarDrawerToggle drawerToggle = null;;
private ListView listView = null;
private CharSequence drawerTitle = null;
private CharSequence title = null;
private NavigationDrawerConfiguration navigationConfig = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.navigationConfig = this.getNavigationDrawerConfiguration();
this.setContentView(this.navigationConfig.getMainLayout());
this.toolbar = (Toolbar) this.findViewById(R.id.app_bar);
this.drawerLayout = (DrawerLayout) this.findViewById(navigationConfig.getDrawerLayoutId());
this.listView = (ListView) this.findViewById(navigationConfig.getLeftDrawerId());
this.listView.setAdapter(navigationConfig.getBaseAdapter());
this.listView.setOnItemClickListener(new DrawerItemClickListener());
this.drawerTitle = this.getTitle();
this.title = this.getTitle();
this.setSupportActionBar(this.toolbar);
this.getSupportActionBar().setDisplayHomeAsUpEnabled(true);
this.getSupportActionBar().setHomeButtonEnabled(true);
this.drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, this.toolbar, this.navigationConfig.getDrawerOpenDesc(), this.navigationConfig.getDrawerCloseDesc()) {
#Override
public void onDrawerClosed(View view) {
getSupportActionBar().setTitle(title);
invalidateOptionsMenu();
}
#Override
public void onDrawerOpened(View drawerView) {
getSupportActionBar().setTitle(drawerTitle);
invalidateOptionsMenu();
}
};
this.drawerLayout.setDrawerListener(this.drawerToggle);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
this.drawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
this.drawerToggle.onConfigurationChanged(newConfig);
}
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
if (this.navigationConfig.getActionMenuItemsToHideWhenDrawerOpen() != null) {
boolean drawerOpen = this.drawerLayout.isDrawerOpen(listView);
for (int item : this.navigationConfig.getActionMenuItemsToHideWhenDrawerOpen()) {
menu.findItem(item).setVisible(!drawerOpen);
}
}
return super.onPrepareOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (this.drawerToggle.onOptionsItemSelected(item)) {
return true;
} else {
return false;
}
}
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_MENU) {
if (this.drawerLayout.isDrawerOpen(this.listView)) {
this.drawerLayout.closeDrawer(this.listView);
} else {
this.drawerLayout.openDrawer(this.listView);
}
return true;
}
return super.onKeyDown(keyCode, event);
}
protected NavigationDrawerConfiguration getNavigationDrawerConfiguration() {
NavigationDrawerItem[] menu = new NavigationDrawerItem[] {
// NavigationMenuSection.create(100, "Demos"),
NavigationMenuItem.create(100, "Item 1", "ic_measure", false, this),
NavigationMenuItem.create(200, "Item 2", "ic_list", false, this),
// NavigationMenuSection.create(200, "General"),
NavigationMenuItem.create(300, "Item 3", "ic_diagrams", false, this),
NavigationMenuItem.create(400, "Item 4", "ic_calculator", false, this),
NavigationMenuItem.create(500, "Item 5", "ic_scanner", false, this),
NavigationMenuItem.create(600, "Item 6", "ic_profile", false, this),
NavigationMenuItem.create(700, "Item 7", "ic_follower", false, this),
NavigationMenuItem.create(800, "Item 8", "ic_settings", false, this)
};
NavigationDrawerConfiguration navigationDrawerConfiguration = new NavigationDrawerConfiguration();
navigationDrawerConfiguration.setMainLayout(R.layout.activity_menu_slide);
navigationDrawerConfiguration.setDrawerLayoutId(R.id.menu_slide_layout);
navigationDrawerConfiguration.setLeftDrawerId(R.id.menu_slide_list);
navigationDrawerConfiguration.setNavigationItems(menu);
navigationDrawerConfiguration.setDrawerOpenDesc(R.string.open_navigation_drawer);
navigationDrawerConfiguration.setDrawerCloseDesc(R.string.close_navigation_drawer);
navigationDrawerConfiguration.setBaseAdapter(new NavigationDrawerAdapter(this, R.layout.activity_menu_slide_item_row, menu));
return navigationDrawerConfiguration;
}
public void selectItem(int position) {
NavigationDrawerItem selectedItem = this.navigationConfig.getNavigationItems()[position];
this.onNavigationItemSelected(selectedItem.getId());
this.listView.setItemChecked(position, true);
if (selectedItem.updateActionBarTitle()) {
this.setTitle(selectedItem.getLabel());
}
if (this.drawerLayout.isDrawerOpen(this.listView)) {
this.drawerLayout.closeDrawer(this.listView);
}
}
protected void onNavigationItemSelected(int id) {
Intent intent = null;
switch ((int) id) {
case 100:
intent = new Intent(this, MeasureDataActivity.class);
break;
case 200:
intent = new Intent(this, MeasureDataListActivity.class);
break;
case 300:
intent = new Intent(this, DiagramsActivity.class);
break;
case 400:
intent = new Intent(this, CalcActivity.class);
break;
case 500:
intent = new Intent(this, RecipeActivity.class);
break;
case 600:
intent = new Intent(this, ProfileActivity.class);
break;
case 700:
intent = new Intent(this, FollowerActivity.class);
break;
case 800:
intent = new Intent(this, SettingsActivity.class);
break;
}
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
this.startActivity(intent);
}
protected int getDrawerIcon() {
return R.drawable.ic_navigation_drawer;
}
protected DrawerLayout getDrawerLayout() {
return this.drawerLayout;
}
protected ActionBarDrawerToggle getDrawerToggle() {
return this.drawerToggle;
}
#Override
public void setTitle(CharSequence title) {
this.title = title;
this.getSupportActionBar().setTitle(title);
}
private class DrawerItemClickListener implements ListView.OnItemClickListener {
/**
*
*/
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
}
}

I think in the onCreate after the super() call you can do this:
mDrawerToggle.setDrawerIndicatorEnabled(false);
If this alone doesn't work (or just doesn't work) try this:
getActionBar().setDisplayHomeAsUpEnabled(true);
Follow this link: Missing Up navigation icon after switching from ICS ActionBar to Lollipop Toolbar
Original poster found this link

unable to use handler, getting looper.prepare error

I was trying to use handler in onPageFinished method of onCreateView method of PlanetFragment class. But I am getting looper.prepare() error. Please help. And also please tell if there is some better method to use progressbar.
public class MainActivity extends Activity {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
private CharSequence mDrawerTitle;
private CharSequence mTitle;
private String[] mPlanetTitles;
static Handler progressBarHandler;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTitle = mDrawerTitle = getTitle();
mPlanetTitles = getResources().getStringArray(R.array.planets_array);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
// set a custom shadow that overlays the main content when the drawer
// opens
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
GravityCompat.START);
// set up the drawer's list view with items and click listener
mDrawerList.setAdapter(new ArrayAdapter<String>(this,
R.layout.drawer_list_item, mPlanetTitles));
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
// enable ActionBar app icon to behave as action to toggle nav drawer
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
// ActionBarDrawerToggle ties together the the proper interactions
// between the sliding drawer and the action bar app icon
mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */
mDrawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
R.string.drawer_open, /* "open drawer" description for accessibility */
R.string.drawer_close /* "close drawer" description for accessibility */
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
invalidateOptionsMenu(); // creates call to
// onPrepareOptionsMenu()
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
invalidateOptionsMenu(); // creates call to
// onPrepareOptionsMenu()
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
selectItem(0);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}
/* Called whenever we call invalidateOptionsMenu() */
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
// If the nav drawer is open, hide action items related to the content
// view
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_websearch).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// The action bar home/up action should open or close the drawer.
// ActionBarDrawerToggle will take care of this.
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action buttons
switch (item.getItemId()) {
case R.id.action_websearch:
// create intent to perform web search for this planet
Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
intent.putExtra(SearchManager.QUERY, getActionBar().getTitle());
// catch event that there's no activity to handle intent
if (intent.resolveActivity(getPackageManager()) != null) {
startActivity(intent);
} else {
Toast.makeText(this, R.string.app_not_available,
Toast.LENGTH_LONG).show();
}
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/* The click listner for ListView in the navigation drawer */
private class DrawerItemClickListener implements
ListView.OnItemClickListener {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
selectItem(position);
}
}
private void selectItem(int position) {
// update the main content by replacing fragments
Fragment fragment = new PlanetFragment();
Bundle args = new Bundle();
args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position);
fragment.setArguments(args);
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.content_frame, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
setTitle(mPlanetTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
#Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggls
mDrawerToggle.onConfigurationChanged(newConfig);
}
/**
* Fragment that appears in the "content_frame", shows a planet
*/
public static class PlanetFragment extends Fragment {
public static final String ARG_PLANET_NUMBER = "planet_number";
public PlanetFragment() {
// Empty constructor required for fragment subclasses
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_planet,
container, false);
int i = getArguments().getInt(ARG_PLANET_NUMBER);
String planet = getResources()
.getStringArray(R.array.planets_array)[i];
int imageId = getResources().getIdentifier(
planet.toLowerCase(Locale.getDefault()), "drawable",
getActivity().getPackageName());
final WebView webview = ((WebView) rootView
.findViewById(R.id.image));
final ProgressBar progressbar = ((ProgressBar) rootView
.findViewById(R.id.progressbar));
webview.getSettings().setJavaScriptEnabled(true);
final PlanetFragment activity = this;
webview.setWebViewClient(new WebViewClient() {
#Override
public void onPageStarted(WebView view, String url,
Bitmap favicon) {
view.setVisibility(View.GONE);// hide the webview that will
// display your dialog
new Thread(new Runnable() {
private int progressBarStatus = 0;
private int fileSize;
public void run() {
progressBarHandler = new Handler();
while (progressBarStatus < 100) {
// process some tasks
progressBarStatus = doWork();
// your computer is too fast, sleep 1 second
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
// Update the progress bar
progressBarHandler.post(new Runnable() {
public void run() {
progressbar
.setProgress(progressBarStatus);
}
});
}
// ok, file is downloaded,
if (progressBarStatus >= 100) {
// sleep 2 seconds, so that you can see the 100%
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
private int doWork() {
while (fileSize <= 1000000) {
fileSize++;
if (fileSize == 100000) {
return 10;
} else if (fileSize == 200000) {
return 20;
} else if (fileSize == 300000) {
return 30;
} else if (fileSize == 200000) {
return 40;
} else if (fileSize == 300000) {
return 50;
} else if (fileSize == 200000) {
return 60;
} else if (fileSize == 300000) {
return 70;
} else if (fileSize == 200000) {
return 80;
} else if (fileSize == 300000) {
return 90;
}
}
return 100;
}
}).start();
}
#Override
public void onPageFinished(WebView view, String url) {
progressBarHandler = new Handler();
webview.loadUrl("javascript:document.getElementsByClassName('header')[0].style.display=\"none\";");
webview.loadUrl("javascript:document.getElementsByClassName('icon-anon')[0].style.display=\"none\";");
webview.loadUrl("javascript:document.getElementsByClassName('search')[0].style.display=\"none\";");
webview.loadUrl("javascript:document.getElementsByClassName('wh_ad')[0].style.display=\"none\";");
webview.loadUrl("javascript:document.getElementsByClassName('cse_x')[0].style.display=\"none\";");
webview.loadUrl("javascript:document.getElementsByClassName('wh_search')[0].style.display=\"none\";");
webview.loadUrl("javascript:document.getElementsByClassName('wh_ad')[0].style.display=\"none\";");
webview.loadUrl("javascript:document.getElementsByClassName('wh_ad')[0].style.display=\"none\";");
webview.loadUrl("javascript:document.getElementsByClassName('footer_random_button')[0].style.display=\"none\";");
webview.loadUrl("javascript:document.getElementsByClassName('mw-mf-page-left')[0].style.display=\"none\";");
webview.loadUrl("javascript:document.getElementsByClassName('mw-mf-viewport')[0].style.display=\"none\";");
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
// Code here will run in UI thread
}
},1000);
webview.getSettings().setJavaScriptEnabled(false);
view.setVisibility(View.VISIBLE);
// you might need this
view.bringToFront();
}
});
webview.loadUrl(planet);
getActivity().setTitle(planet);
return rootView;
}
}
}

You have to create handler in Activity
just initialize the Handler in onCreate method of activity
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
progressBarHandler = new Handler();
// rest of your code
and remove the initialization in Fragment class as it is already initialized in Activity . Just Use progressBarHandler in Fragment Class and it will work fine.