[android-developers] Multi-pane Layout best practice
Hi all, i just need some clarification about the best way to design a multi-pane layout for my app. More in datail, i'm just interesting in understand how is the better way to let the fragments communicate with their parent activity. Accordingly to what described here http://developer.android.com/design/patterns/multi-pane-layouts.html http://developer.android.com/design/patterns/multi-pane-layouts.html and here http://developer.android.com/training/basics/fragments/fragment-ui.html, i've designed my UI with the following structure: - a main activity (let say: A_MAIN) - a list fragment (F_LIST) and its related activity (A_LIST) - a detail fragment (F_DET) and its related activity (A_DET) - an edit fragment (F_EDIT) and its related activity (A_EDIT) Moreover, each fragment - defines an interface (OnFragmentInteractionListener) to send the user action to its parent - participates to the the action bar with the supported actions and the main activity (A_MAIN) implements the listener for all fragments and has the following layouts: - for smartphone (default), it contains only the F_LIST fragment. When an item of the list is selected, it starts the A_DET with the F_DET fragment for the selected item - for tablet (sw600dp), it contains the F_LIST and F_DET fragments. When an item of the list is selected, it refreshes the F_DET for the selected item The issue is that the parent activity for F_DET could be both A_MAIN or A_DET hence, in the smartphone scenario, i've some difficulties to send the listener action to the A_MAIN because it is two levels back (F_DET - A_DET - A_MAIN)... Where i'm wrong? (To better clarify, i just want the same interaction behavior of gMail app when select an email...) I wait for your help and advice. Regards Sergio -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[android-developers] Wider status bar notification icon
Hi all, I need your help to solve a question that hang my app's development. The problem is that I need to show in the status bar notification area an icon wider then the others. More in details, suppose my notification icon is 24x48, there is a way to avoid Android to makes the icon unreadable, stretching it to 12x24 (to fill the 24x24 standard icon placeholder)? In other words, there is a way to show a rectangular icon (wider than 24px) for an app's notification? Hope I succeed in explain myself and you can give me the right way. Thanks a lot Regards Sergio -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[android-developers] Avoid app to kill widget process
Hi all,
i'm asking your help to understand a behaviour of my app running on JB
4.1.2.
Shortly, I want to add to my app package a widget that shows via
AdapterViewFlipper a collection of information retrived by the app (app and
widget shares the same model classes and some of the views). I tried some
methods to design this and finally I choose (any other better design hints
are welcome :) ) to separate the process of the app and that of the widget
writing the following in the manifest file:
receiver android:name=.widget.MyApp4x1Provider
android:label=@string/app_name
android:process=:com.example.myapp.widget
intent-filter
action android:name=android.appwidget.action.APPWIDGET_UPDATE/
/intent-filter
meta-data android:name=android.appwidget.provider
android:resource=@xml/myApp4x1info/
/receiver
service android:name=.widget.MyAppDataModelRemoteService
android:permission=android.permission.BIND_REMOTEVIEWS
android:exported=false
android:process=:com.example.myapp.widget
/
All works fine, but this strange behaviour:
- if I only execute app all goes well, the app is executed and killed
once I remove it from the recent tasks list
- if I add the widget on my desktop all goes well, the data are shown and
refreshed how I expected
- if I open the app when the widget is active on my home all coninue to
works but when I close the app ActivityManager kills the widget process too!
Following an extract of the debug log:
[...]
(01) - 10-17 22:26:08.784: INFO/ActivityManager(306): Start proc
com.example.myapp.widget for broadcast
com.example.myapp/.widget.MyApp4x1Provider: pid=22467 uid=10066 gids={3003,
1028}
(02) - 10-17 22:26:08.963: DEBUG/com.example.myapp.MyApp(22467): onCreate
(instance: com.example.myapp.MyApp@41882800)
(03) - 10-17 22:26:08.963:
DEBUG/com.example.myapp.widget.MyApp4x1Provider(22467): onEnabled called
(wdgModelRefreshHandler: null)
(04) - 10-17 22:26:08.963:
DEBUG/com.example.myapp.widget.MyApp4x1Provider(22467): onEnabled exit
(wdgModelRefreshHandler: Handler
(com.example.myapp.widget.MyAppWidgetProvider$RefresherDaemonHandler)
{4191c6b0})
(05) - 10-17 22:26:08.971:
DEBUG/com.example.myapp.widget.MyAppWidgetProvider$RefresherDaemonHandler(22467):
REFRESHER_BEAT done for 1 widgets
(06) - 10-17 22:26:08.987:
DEBUG/com.example.myapp.widget.MyAppDataModelRemoteService(22467):
onGetViewFactory (intent:
intent:#Intent;component=com.example.myapp/.widget.MyAppDataModelRemoteService;i.appWidgetId=55;end)
(07) - 10-17 22:26:08.987:
DEBUG/com.example.myapp.core.MyAppDataModel(22467): onDataSetChanged called
[...]
(08) - 10-17 22:38:45.971: INFO/ActivityManager(306): START
{act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER]
flg=0x1020 cmp=com.example.myapp/.ui.Home bnds=[200,185][360,385] u=0}
from pid 593
(09) - 10-17 22:38:46.065: INFO/ActivityManager(306): Start proc
com.example.myapp for activity com.example.myapp/.ui.Home: pid=22961
uid=10066 gids={3003, 1028}
(10) - 10-17 22:38:46.284: DEBUG/com.example.myapp.MyApp(22961): onCreate
(instance: com.example.myapp.MyApp@41887670)
(11) - 10-17 22:38:46.901: INFO/ActivityManager(306): Displayed
com.example.myapp/.ui.Home: +855ms
(12) - 10-17 22:38:49.049:
DEBUG/com.example.myapp.widget.MyAppWidgetProvider$RefresherDaemonHandler(22467):
REFRESHER_BEAT done for 1 widgets
[...]
(13) - 10-17 22:38:56.706: INFO/ActivityManager(306): Killing
22467:com.example.myapp.widget/u0a66: remove task
(14) - 10-17 22:38:56.706: INFO/ActivityManager(306): Killing
22961:com.example.myapp/u0a66: remove task
(15) - 10-17 22:38:56.729: INFO/WindowState(306): WIN DEATH:
Window{4186e850 com.example.myapp/com.example.myapp.ui.Home paused=true}
(16) - 10-17 22:39:06.698: WARN/ActivityManager(306): Activity destroy
timeout for ActivityRecord{420b4b58 com.example.myapp/.ui.Home}
Where:
- the rows from (1) to (7) show that widget works properly in its own
process
- the rows from (8) to (11) show the starting of the app in a separate
process
- with the row (12) i can see that widget conintue to work if the app is
running
- the rows from (13) to (16) are when I remove the app from the recent
tasks list, and shows that, when ActivityManager kill the app process (14),
it kills the widget one too (13)
The question is, how I can avoid ActivityManager to kill both the process,
leaving that of widget alive?
Any suggestion is appreciated.
Thanks a lot and regards
Sergio
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[android-developers] Re: List View View Replicated when scrolling down and movie the stroller towards to up.
Try to take a look here. https://groups.google.com/forum/?fromgroups#!starred/android-developers/NZ_pCPs0evM%5B1-25%5D HTH Sergio Il giorno lunedì 13 agosto 2012 15:47:23 UTC+2, Gourab Singha ha scritto: List View View Replicated when scrolling down and movie the stroller towards to up. How i Solve this -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Third-parties libraries license
Sure, but I thought that my doubt is faced to anyone have developed an application that uses Google Map library. Moreover, I don't refer to my specific case but to a general purpose practice that, i believe, an android developer more experienced than me should manage as well. In any case, i'm sorry if I don't have exposed my doubt in the proper way. Best regards Sergio Il giorno domenica 12 agosto 2012 01:14:42 UTC+2, Spooky ha scritto: On Sat, Aug 11, 2012 at 04:07:49PM -0700, Sergio Panico wrote: just a legal question. Then you need to ask a lawyer. Later, --jim -- THE SCORE: ME: 2 CANCER: 0 73 DE N5IAL (/4) | Tux (E Cat): DS B+Wd Y 6 Y L+++ W+ C++/C++ I+++ spook...@gmail.com javascript: | T++ A E H+ S V- F++ Q+++ P/P+ B++ PA+ PL SC--- Running Mac OS X Lion | ICBM / Hurricane: | Tiggerbelle: DS W+S+Bts % 1.5 X L W C+++/C+ 30.44406N 86.59909W| I+++ T A E++ H S++ V+++ Q+++ P B++ PA++ PL+ SC Android Apps Listing at http://www.jstrack.org/barcodes.html -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Third-parties libraries license
Hi all, just a legal question. Anyone know what is the best practice to avoid legal issue in using third party libraries? For my understanding, the app should foresee a section (usually the about or information screens) where all the 3rd parties library and/or trademarks are attributed to their respective owner with some copyright notes (for example: Google, Android, Google Maps are registered trademark of Google Inc. [3rd-Lib] is property of [3rd party company name]. All other registered trademarks or trademarks are property of their respective owners. All rights reserved.) What i'm wondering is if this note is enought, or there should be an explicit reference to the license of the library used? (for example, see Google+ App, in the section Settings About Google+ Open souce licenses). In this case what is the license for the addon Google Maps API 16 (maps.jar, com.google.android.maps)? Thanks a lot Bye Sergio -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] SharedPreferences clarification
Hi all, I need your help to have a clarification for the preferences framework of Android. Accordingly to Google API Reference (http://developer.android.com/reference/android/preference/PreferenceActivity.html) I created my app preferences section by extending the PreferenceActivity class and by creating (sub)fragment for each different sections. It seems works well, but here is the first question: 1. Google API documentation talks about 2 styles for creating preference sections of an app: one deprecated old style, and one newest technique fragment-based. As per my understanding, with the first old method, all the settings belong to only one screen, instead with the second it is possibile to create headers and subsection for grouping the settings. BTW, always for google gudelines, it is not a best practice to spread the setting into several section (http://developer.android.com/design/patterns/settings.html). So the question is, what of this two techniques is better to use? What is the criteria (for example number of settings...) to choose one or the other solution? Then, assuming that i've choosen one of the technique and have implemented my preference section in my app, i know that all the settings are managed by Android with SharedPreference class. Now, I need to access to my settings outside the my PreferenceActivity class. I thought to work in this way: in my main Application class, I create a static method that, using the context of the app, accesses to the SharedPreferences object, retrive the setting I ask for, and return its value to the caller. But, the getSharedPreferences Context's method ask me for a name and a mode. Accordingly to API reference name is Desired preferences file and mode is the Operating mode. The question is: 2. How can I know what is the preference file for my application, as was the Android framework that managed the preferences for me (within my PreferenceActivity class)? Thanks a lot for all the clarification Regards Sergio -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: SharedPreferences clarification
Thank you guys for your answers! Now it is more clear! Thanks Sergio Il giorno martedì 31 luglio 2012 15:55:25 UTC+2, Sergio Panico ha scritto: Hi all, I need your help to have a clarification for the preferences framework of Android. Accordingly to Google API Reference ( http://developer.android.com/reference/android/preference/PreferenceActivity.html) I created my app preferences section by extending the PreferenceActivity class and by creating (sub)fragment for each different sections. It seems works well, but here is the first question: 1. Google API documentation talks about 2 styles for creating preference sections of an app: one deprecated old style, and one newest technique fragment-based. As per my understanding, with the first old method, all the settings belong to only one screen, instead with the second it is possibile to create headers and subsection for grouping the settings. BTW, always for google gudelines, it is not a best practice to spread the setting into several section ( http://developer.android.com/design/patterns/settings.html). So the question is, what of this two techniques is better to use? What is the criteria (for example number of settings...) to choose one or the other solution? Then, assuming that i've choosen one of the technique and have implemented my preference section in my app, i know that all the settings are managed by Android with SharedPreference class. Now, I need to access to my settings outside the my PreferenceActivity class. I thought to work in this way: in my main Application class, I create a static method that, using the context of the app, accesses to the SharedPreferences object, retrive the setting I ask for, and return its value to the caller. But, the getSharedPreferences Context's method ask me for a name and a mode. Accordingly to API reference name is Desired preferences file and mode is the Operating mode. The question is: 2. How can I know what is the preference file for my application, as was the Android framework that managed the preferences for me (within my PreferenceActivity class)? Thanks a lot for all the clarification Regards Sergio -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: ListView with custom view item refresh issue
Hi all,
I thank all for your answers.
I've understood the strange behaviour that doesn't makes my ListView to
refreshes correctly.
Here is the link where I've found the solution:
https://groups.google.com/forum/?fromgroups#!topic/android-developers/2Ub4yhyKumM
This topic clearly explains that, when the callback method getView is
called, the parameter convertView is null only when ListView tries to
draw the first 5 items, from A to E. When I scroll down the content of
the list, and the ListView draws the items 6 and 7, it reuses the views
previoulsy created, hence convertView is not null and my getView
implementation goes into else branch.
What I've missed was to bind the old view, with the new model item
getting showed. So the fix was simply to add, in this branch, the update of
the bind between recycled view and model item.
HTH
Sergio
Il giorno giovedì 26 luglio 2012 12:59:05 UTC+2, Sergio Panico ha scritto:
Hi all,
I need your help to understand the refresh behaviour of a ListView where
I've defined a my custom view for the ListView's items.
I think It's better explain it with an example:
my adapter contains 7 items: A, B, C, D, E, F, G correctly initialized,
filled and working. The associated ListView shows 5 (out of 7) items: A, B,
C, D, E.
The problem is that, when I scroll down the ListView's content instead of
showing me items F and G, I've got A and B items again. I understood that
this is only a viewing issue becouse the model elements associated with
the last two items, correctly belong to F and G items. :|
Following the ovveride of getView(...) method of my adapter (extending
BaseAdapter):
@Override
public View getView(int position, View convertView, ViewGroup parent) {
MyItemView miv = (( MyItemView ) convertView);
if (context == null) return null;
if (convertView == null) {
miv = new MyItemView ();
.
} else {
miv.refreshView(); //refresh the view content
}
return miv;
}
and the refreshView() method of MyItemView (extending LinearLayout):
@Override
public void refreshView() {
label1.setText(..);
label2.setText(..);
label2.setText(..);
invalidate();
}
Thanks a lot to all!
Bye
Sergio
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[android-developers] ListView with custom view item refresh issue
Hi all,
I need your help to understand the refresh behaviour of a ListView where
I've defined a my custom view for the ListView's items.
I think It's better explain it with an example:
my adapter contains 7 items: A, B, C, D, E, F, G correctly initialized,
filled and working. The associated ListView shows 5 (out of 7) items: A, B,
C, D, E.
The problem is that, when I scroll down the ListView's content instead of
showing me items F and G, I've got A and B items again. I understood that
this is only a viewing issue becouse the model elements associated with
the last two items, correctly belong to F and G items. :|
Following the ovveride of getView(...) method of my adapter (extending
BaseAdapter):
@Override
public View getView(int position, View convertView, ViewGroup parent) {
MyItemView miv = (( MyItemView ) convertView);
if (context == null) return null;
if (convertView == null) {
miv = new MyItemView ();
.
} else {
miv.refreshView(); //refresh the view content
}
return miv;
}
and the refreshView() method of MyItemView (extending LinearLayout):
@Override
public void refreshView() {
label1.setText(..);
label2.setText(..);
label2.setText(..);
invalidate();
}
Thanks a lot to all!
Bye
Sergio
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