android-activity

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onSaveInstanceState () and onRestoreInstanceState ()

开发者_开发问答I\'m trying to save and restore the state of an Activity using the methods onSaveInstanceState() and onRestoreInstanceState().[详细]

2023-04-13 03:19 分类：问答
Impossible to start ACTION_SEND activity in my activitiesManager / Strange behavior of onKeyUp event

In my android application, I use my own ActivityGroup (named TabGroupActivity) in order to manage several activities in a tabHost.[详细]

2023-04-13 01:17 分类：问答
Starting an activity when tapping on a widget

I\'m developing an android widget and i would like to start a certain activity when i tap on a certain area of my widge开发者_运维技巧t, and another one when tapping somewhere else.[详细]

2023-04-12 22:36 分类：问答
Android: Can I save more than one SharedPreference entry to a file?

This is the problem: I have a form for inputting names, then saves it, then displays it in another activity. But once 开发者_如何转开发I try to enter another name, the previous name is overwritten by[详细]

2023-04-12 19:24 分类：问答
When going back through activities, application stalls

I have this code, that goes through steps, aquired from a webservice. I implemented my own history, so that the user can go back through performed steps.[详细]

2023-04-12 19:21 分类：问答
Android - cannot refresh ExpendableListView, it freezes

I have an ExpandableListView in which if I add some Groups during onCreate() of the activity, it\'s fine, but if I try to add Groups later on and then do notifyDataSetChanged() the ExpandableListView[详细]

2023-04-12 18:19 分类：问答
Tablet Android Orientation when launch Activity

I have a strange problem on orientation handling on Samsung Tablets. Basically, I have this app that it is supposed to run only in Landscape if running on tablet and portrait if i\'m on a phone.[详细]

2023-04-12 17:49 分类：问答
Activity gets killed but saved bundle is not received in onCreate

I have an application开发者_高级运维 that works without fragments. I modified an activity to use fragments.[详细]

2023-04-12 16:26 分类：问答
(Android) How to Save activity Data (Listview)when start new activity and restart again main activity listview activity

I am new in Android development. I want to develop a questionnaire. There are only two activities in questionnaire Main activity and camera activity. in May Main activity I have ListViewwith ListView.[详细]

2023-04-12 16:01 分类：问答
Patterns when to use Activity Transition vs Dynamic Fragments

Are there any patterns on how to handle UI Transitions in Android Activities vs Fragments? I am开发者_如何学Go currently looking into a UI that has at most 3 columns in Landscape.[详细]

2023-04-12 15:06 分类：问答