Recent questions tagged Android

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android studio - How to define apk output directory when using gradle?

How to define apk output directory when using gradle? I would like to have possibility to upload apk to shared folder after each build. 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 Place ActionBar Items in Main ActionBar and Bottom Bar

The Google+ app has a layout where it has action bar items in the main action bar and the bottom. Currently I ... on both the top and 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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android - NestedScrollView and Horizontal RecyclerView Smooth Scrolling

I have a single vertical nestedscrollview that contains a bunch of recyclerview with a horizontal layoutmanager setup. ... from the store: 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 - Fatal signal 11 (SIGSEGV) at 0x00000000 (code=1), thread 32140

50% of the time when running my app I'm getting this error 06-20 12:56:51.183: A/libc(32140): Fatal ... code=1), thread 4102 (example.www) 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 - Is there a way to detect if app was installed with Market or not?

I am wondering if I am able to detect if my application was installed with Android Market (it's in the ... stolen and installed from SDcard. 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 add shadow on CardView aligned to bottom of parent

I have a CardView aligned bottom to screen, destpite the elevation I want to add more shadow to top of ... > </LinearLayout> </RelativeLayout> 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 - Cancel an AlarmManager pendingIntent in another pendingintent

I want cancel AlarmManager which define a service,in this service might start a new AlarmManger or cancel alarm that ... could help me? 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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435 views

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android - how can I notify a running activity from a broadcast receiver?

I have an activity, it needs to response to a broadcast event. Since an activity can not be a broadcast receiver ... a design pattern for this? 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 - Start IntentService from Activity and refresh Activity when IntentService is finished

In my Android application, I have a simple list view with adapter. There's a heavy query which is to fill the ... Is this the way to choose? 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 - What is cursor.setNotificationUri() used for?

I did research on how to use ContentProviders and Loaders from this tutorial How I see it: We have ... of our ContentProvider implementation? 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 - Creating Observable without using Observable.create

I am using RxJava in my Android app and I want to load data from the database. In this way, I am creating a new ... I emit one item at a time? 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 should I increase the spinner list item font size?

This is my spinner's code: Spinner food = (Spinner) findViewById(R.id.spinner1); ArrayAdapter<CharSequence> foodadapter = ... How can I do that? 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 - Error: device offline

The emulator is running. But when I write adb shell in my shell I get: error:device offline What is the reason for this? How do I get rid of it? See Question&Answers more detail:os...

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

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253 views

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android - Fragment overlaps the AppCompat toolbar

I'm working with the v7 support library and trying to have a navigation drawer on the left. As read ... easier to control the ActionBar. See Question&Answers more detail:os...

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

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340 views

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android - Clear firebase persistence after logout

Is there any way to clear data stored in Firebase Database persistence enabled via setPersistenceEnabled(true)? Or eventually ... " } } } } See Question&Answers more detail:os...

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

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382 views

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android - Executing multiple statements with SQLiteDatabase.execSQL

I've followed a standard tutorial for building a database with Android. I've created a class called DbHelper ... only allows 1 statement? See Question&Answers more detail:os...

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

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173 views

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android - Is there any way to have one and only one instance of each activity?

I'm finding that in my application, the user can get quite 'nested' in the various activities that ... the intent using startActivity? See Question&Answers more detail:os...

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

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243 views

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android - Can you use a LoaderManager from a Service?

I have a data loading system set up using a custom Loader and Cursor that is working great from Activities and ... there a way around this? See Question&Answers more detail:os...

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

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633 views

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android - ImageButton Border Transparency - How do I remove the square border around round image?

I think my image is transparent, but I am seeing a grey background appearing around the edges of my image ... instread of just round image. See Question&Answers more detail:os...

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

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316 views

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android - Check if WorkManager is scheduled already

How can I check if WorkManager is scheduled already. Here is my code that schedule WorkManager. public static void ... (); } Any solutions? See Question&Answers more detail:os...

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

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154 views

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android - What is Repo and Why does Google use it?

When I wanted to get Android source code, I knew that I have to use "repo". So what is repo? Why ... repo starts syncing from the beginning! See Question&Answers more detail:os...

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

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349 views

1 answer

android - Can We Install an APK From a ContentProvider?

I am working on a library to allow apps to self-update, for those that are being distributed outside of the ... that made it work? 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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407 views

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android - Failed to post notification on channel "null" Target Api is 26

Two log showing 1: Use of stream types is deprecated for operations other than volume control 2: See the ... qualify your playback use case See Question&Answers more detail:os...

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

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273 views

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android - Show a PopupWindow centralized

I have some popups on my app, it's fullscreen and the following code: content.setLayoutParams(new LayoutParams( ... the popup just centered? 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 - Detect start scroll and end scroll in recyclerview

I need to detect the start/end and direction of scroll in a recyclerview. The scroll listener has two methods: ... can I achieve my goal? See Question&Answers more detail:os...

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

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449 views

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android - Accessing body string of an OkHttp Response twice results in IllegalStateException: closed

I implement my http calls via the OkHttp library. Everything works fine, but I noticed that, when I access ... like header, body, statuscode). See Question&Answers more detail:os...

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

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252 views

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android - How to change default text color using custom theme?

What I'm trying should be quite easy with themes, but I can't find out how to: I want all text to be ... 's another post about this same issue. See Question&Answers more detail:os...

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

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576 views

1 answer

android - Scale image keeping its aspect ratio in background drawable

How do I make a background image fit the view but keep its aspect ratio when using <bitmap /> as a ... gravity values gives the desired effect. See Question&Answers more detail:os...

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

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