Recent questions tagged Android

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android - EditText setError message does not clear after input

Ok so I only have a EditText field and a button, which when pressed triggers an AsyncTask. EditText playerName = ... the EditText is not empty? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - kotlin.TypeCastException: null cannot be cast to non-null type com.midsizemango.databasekotlin.Note

I am trying to code my app in Kotlin, but I am getting null cannot be casted to non-null type and ... os.ZygoteInit.main (ZygoteInit.java:694) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - No Retrofit annotation found. (parameter #1)

I want get RSS code from a URL with Retrofit and if I enter url staticly in the get annotation everything is OK but ... class retrofit.** { *; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How can i get the repeat alarm for week days using alarm manager?

Hi i am developing alarm application for that i need to invoke alarm repeatedly for the same time in different ... help would be appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Populating a listview from a SQLite database

I have an activity where i write a name which is insert in the database. In another activity I want to put a ... help me. Thank you very much! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Why there are multiple copies for the same version of gradle

I have an android studio project, with the file gradle/wrapper/gradle-wrapper.properties configured as following. ... pick the installed one? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Overriding Home button for a Car Home replacement app

I have been working on a replacement for the stock Car Home app for a bit, and I am completely stumped on ... point me in the right direction? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Let Volley's NetworkImageView show local image files

I am using NetworkImageView?to show some covers downloaded from a remote URL and I successfully manage to cache and ... from Volley's source. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How can I select only one checkbox in Recyclerview and notifydataset changed

In my code I have create recyclerview with check box and default one item selected already. now I want when ... item unchecked. please help me. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How to create Http Connection using AsyncTask class?

I am trying to create HTTP connection using AsyncTask class. Is it possible to create HTTP connection ? Can you ... code ? Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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315 views

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android - ScrollView inside Gallery, both scrolling independently

I have a Gallery with an adapter which supplies it ScrollViews as its child views. I need to make sure ... horizontal or vertical in nature. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How to layout a 'grid' of images in the center of the screen

I have a set of 12 images to show in a layout. The number is chosen semi arbitrarily, but boils down to 3 ... the right has too much top/bottom See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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314 views

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android - Volley Post method for json object

data={ "request": { "type": "event_and_offer", "devicetype": "A" }, "requestinfo": { "value": "offer" ... the value what to do plzz help See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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189 views

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android - listView onclick goes to a new activity

i have a listview and i would like to go to a new activity from every list item i press.this is my code.. ... (newActivity); } }); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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345 views

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android - How to add Navigation Drawer to all the activities in the application?

Whats the efficient way to add Navigation Drawer on all the activities? I don't want to repeat the code for ... to have the Navigation Drawer ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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180 views

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android - Google Maps & apps with mapview have different current positions

I have a mapview where I want to track the user's current location. GPS as well as 'use wireless ... NETWORK_PROVIDER like Google Maps does? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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159 views

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android - Is it possible to move the internal DB to the SDCard?

As the database in my app grows, it is going to require more and more of the internal phone space. There isn ... it doesn't move internal files. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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184 views

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android - Tab+ViewPager not updating instead shows weird warning expected state 3 found 2

I have a mainactivity which includes a TabLayout with ViewPager I have added 3 tabs and each tab has separate ... of json return Length; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

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android - Mobile Webkit browser (chrome) address bar changes $(window).height(); making background-size:cover rescale every time

The problem is that I have a few DIV's positioned absolutely which have background-size: cover; and their ... regardless of the address bar? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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183 views

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android - How to get the screen size of the device?

The desire have 480 x 800 pixels, 3.7 inches and the HD have 480 x 800 pixels, 4.3 inches screen ... real resolution of the device ? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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266 views

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android - How to implement yearly and monthly repeating alarms?

I want to set monthly and yearly alarm in my app.I did this for weekly. AlarmManager.INTERVAL_DAY helped me ... do this? Any help appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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204 views

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android - AlphabetIndexer with Custom Adapter

Can someone show me an example of how to use AlphabetIndexer with a Custom Adapter that uses a getView? I ... with a custom adapter. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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311 views

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android - How to measure the speed of car by phone with accelerometer and gyroscope?

I want to know current speed of car and make a passed path. I have an Android phone with accelerometer and ... to car system of coordinate? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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android - multiple api request using retrofit and rx java

I am new to android and I have a scenario where I want to get get data from multiple api. Let suppose api_a, ... request at a time. Please help See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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228 views

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android - how to add customised layout to Arrayadapter?

I am trying to create a ListView with customized layout. each item in the listView should look like ... .layout.listi_tems_layout, topicsList); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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149 views

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android - Error while placing a spinner inside Activity Group

I have an activity group containing 3 activities. When a button is pressed, I enter into this activity group ... :layout_marginTop="8dp" /> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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238 views

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android - Placeholder text for an input type="number" does not show in webkit ICS

I have the following input field <input type="number" id="zip-code" placeholder="Zip code" /> Placeholder is ... . What could be the error? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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259 views

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android - Popupwindow with image

I need to be able to click an imgview in a listview, which should open a popup showing the image fullsize. I've ... , but can't make it work. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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