when I run my app in Android Studio, everything run correctly. The ListView in drawer is correctly populated by run a RushSearch() query. But when I have created the apk and I installed on my smartphone to try run the app, the ListView in Drawer at the first run doesn't populated. If I close the app and run it again, everything is correct.
Why this anomaly?
The code for onCreate method on MainActivity.java class is this
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
callWebservice();
// Layout principale col drawer
setContentView(R.layout.activity_main_drawer);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
leftArrow = (ImageView) findViewById(R.id.left_arrow);
titolo = (TextView) findViewById(R.id.titolo_id);
ActionBarDrawerToggle actionBarDrawerToggle =
new ActionBarDrawerToggle(this, drawerLayout, toolbar,
R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawerLayout.setDrawerListener(actionBarDrawerToggle);
actionBarDrawerToggle.syncState();
drawerListView = (ListView) findViewById(R.id.drawer_listView);
// SELECT * FROM Sections where Fk == 0;
sectionsList = new RushSearch().whereEqual("Fk", 0).find(Sections.class);
Log.d("ELEMENTI",""+sectionsList.size());
drawerListViewAdapter = new DrawerListViewAdapter(sectionsList, getApplicationContext());
// Adapter che si occupa di popolare il drawer
drawerListView.setAdapter(drawerListViewAdapter);
// Listner per il click su un elemento del drawer
drawerListView.setOnItemClickListener(click);
}
The method callWebservice() is responsabile to take a JSON file from an url and its code is this
private void callWebservice() {
String tag_json_obj = "GetItem";
String url = String.format("http://digitalbox.getsandbox.com/item");
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
saveSections(response.getJSONArray("Sections"));
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
public void onErrorResponse(VolleyError error) {
VolleyLog.d("Settings", "Error: " + error.getMessage());
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/json");
headers.put("Accept", "application/json");
return headers;
}
};
NetworkController.getInstance().addToRequestQueue(jsonObjectRequest, tag_json_obj);
}
private void saveSections(final JSONArray section) {
Thread t = new Thread(new Runnable() {
@Override
public void run() {
int c = section.length();
for (int i = 0; i < c; i++) {
try {
JSONObject obj = section.getJSONObject(i);
Sections s = new RushSearch().whereEqual("ID", obj.getInt("ID")).findSingle(Sections.class);
if (s == null) {
s = new Sections();
s.setID(obj.getInt("ID"));
}
if (!obj.isNull("Fk"))
s.setFk(obj.getInt("Fk"));
s.setTitle(obj.getString("Title"));
if (!obj.isNull("CategoryColor"))
s.setCategoryColor(obj.getString("CategoryColor"));
s.setPos(obj.getInt("Pos"));
s.setLanguageId(obj.getInt("LanguageId"));
s.setUnavailableForSend(obj.getBoolean("UnavailableForSend"));
s.save();
} catch (JSONException e) {
e.printStackTrace();
}
}
Log.d("sections", "DB updated");
}
});
t.setPriority(Thread.MIN_PRIORITY);
t.start();
}
If I run the app with Android Studio, in an AVD smartphone, I have this log
11-30 15:21:53.520 2170-2170/? I/art: Not late-enabling -Xcheck:jni (already on)
11-30 15:21:53.520 2170-2170/? I/art: Late-enabling JIT
11-30 15:21:53.558 2170-2170/? I/art: JIT created with code_cache_capacity=2MB compile_threshold=1000
11-30 15:21:53.685 2170-2170/rawpepper.it.digitalbox W/System: ClassLoader referenced unknown path: /data/app/rawpepper.it.digitalbox-2/lib/x86
11-30 15:21:54.099 2170-2170/rawpepper.it.digitalbox W/art: Before Android 4.1, method int android.support.v7.internal.widget.ListViewCompat.lookForSelectablePosition(int, boolean) would have incorrectly overridden the package-private method in android.widget.ListView
11-30 15:21:54.469 2170-2170/rawpepper.it.digitalbox D/ELEMENT: 13
11-30 15:21:54.486 2170-2210/rawpepper.it.digitalbox D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
11-30 15:21:54.592 2170-2210/rawpepper.it.digitalbox I/OpenGLRenderer: Initialized EGL, version 1.4
11-30 15:21:54.719 2170-2210/rawpepper.it.digitalbox W/EGL_emulation: eglSurfaceAttrib not implemented
11-30 15:21:54.719 2170-2210/rawpepper.it.digitalbox W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xad6fc2e0, error=EGL_SUCCESS
11-30 15:21:57.542 2170-2204/rawpepper.it.digitalbox D/Volley: [117] BasicNetwork.logSlowRequests: HTTP response for request=<[ ] http://digitalbox.getsandbox.com/item 0x95b78f5f NORMAL 1> [lifetime=3034], [size=196862], [rc=200], [retryCount=0]
11-30 15:21:57.691 2170-2180/rawpepper.it.digitalbox W/art: Suspending all threads took: 25.964ms
11-30 15:21:57.909 2170-2405/rawpepper.it.digitalbox D/sections: DB updated
that tells me that the number of elements in sectionList array are 13 (sixth row), that is correct. app run with Android Studio If I create the apk and I install it on my smartphone, and I plug this on pc to check the log when I run the app, I have this log
11-30 15:35:01.765 17183-17183/rawpepper.it.digitalbox I/art: Late-enabling -Xcheck:jni
11-30 15:35:01.883 17183-17183/rawpepper.it.digitalbox W/System: ClassLoader referenced unknown path: /data/app/rawpepper.it.digitalbox-2/lib/arm
11-30 15:35:02.357 17183-17183/rawpepper.it.digitalbox W/art: Before Android 4.1, method int android.support.v7.internal.widget.ListViewCompat.lookForSelectablePosition(int, boolean) would have incorrectly overridden the package-private method in android.widget.ListView
11-30 15:35:03.235 17183-17183/rawpepper.it.digitalbox D/ELEMENT: 0
11-30 15:35:03.249 17183-17260/rawpepper.it.digitalbox D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
11-30 15:35:03.304 17183-17260/rawpepper.it.digitalbox I/Adreno-EGL: <qeglDrvAPI_eglInitialize:379>: QUALCOMM Build: 09/02/15, 76f806e, Ibddc658e36
11-30 15:35:03.306 17183-17260/rawpepper.it.digitalbox I/OpenGLRenderer: Initialized EGL, version 1.4
11-30 15:35:05.976 17183-17321/rawpepper.it.digitalbox D/sections: DB updated
that tells me that the elements in sectionList array are 0, but if I close and run it again, everything is correct.
Ok Man. Try this:
private void callWebservice() {
String tag_json_obj = "GetItem";
String url = String.format("http://digitalbox.getsandbox.com/item");
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
new SaveData().execute(response.getJSONArray("Sections"));
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
public void onErrorResponse(VolleyError error) {
VolleyLog.d("Settings", "Error: " + error.getMessage());
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/json");
headers.put("Accept", "application/json");
return headers;
}
};
NetworkController.getInstance().addToRequestQueue(jsonObjectRequest, tag_json_obj);
}
Then add this inner class inside your activity:
private final class SaveData extends AsyncTask<JSONArray, Void, Void> {
protected Void doInBackground(JSONArray... params) {
int c = section.length();
for (int i = 0; i < c; i++) {
try {
JSONObject obj = section.getJSONObject(i);
Sections s = new RushSearch().whereEqual("ID", obj.getInt("ID")).findSingle(Sections.class);
if (s == null) {
s = new Sections();
s.setID(obj.getInt("ID"));
}
if (!obj.isNull("Fk"))
s.setFk(obj.getInt("Fk"));
s.setTitle(obj.getString("Title"));
if (!obj.isNull("CategoryColor"))
s.setCategoryColor(obj.getString("CategoryColor"));
s.setPos(obj.getInt("Pos"));
s.setLanguageId(obj.getInt("LanguageId"));
s.setUnavailableForSend(obj.getBoolean("UnavailableForSend"));
s.save();
} catch (JSONException e) {
e.printStackTrace();
}
}
Log.d("sections", "DB updated");
return null;
}
public void onPostExecute(Void result) {
sectionsList = new RushSearch().whereEqual("Fk", 0).find(Sections.class);
Log.d("ELEMENTI",""+sectionsList.size());
drawerListViewAdapter = new DrawerListViewAdapter(sectionsList, getApplicationContext());
}
}
I hope this helps!