Recent questions tagged Android

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android - IllegalStateException: Content has been consumed

I got struck because of IllegalStateException in the following code. Can anybody please help me? Code: import ... : Content has been consumed See Question&Answers more detail:os...

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

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265 views

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android - IllegalArgumentException: column '_data' does not exist

In Nougat, this function is not working. String path = getRealPathFromURI(this, getIntent().getParcelableExtra(Intent. ... . So 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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798 views

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android - make RecyclerView's height to "wrap_content" in Constraint layout

i'm trying to set the height of recycler view on wrap_content and make it respect that,but it ... /android.support.constraint.ConstraintLayout> See Question&Answers more detail:os...

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

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742 views

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android - startLeScan replacement to current api

Goal is to read the values of a bluetooth LE heart rate monitor. Using google's sample, I get private void ... to work with the current API? See Question&Answers more detail:os...

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

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493 views

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android - Native crashes on abort in developer console with Oreo (8.1)

In the developer console I get more and more a native crash in abort. This occurs ONLY for android 8.1 ... would help to find a workaround! See Question&Answers more detail:os...

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

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313 views

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android - How to draw text on canvas?

i'm trying to develop a simple pie chart class for android. For now, it can take a map of labels and values ... since i'm new to Android dev. See Question&Answers more detail:os...

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

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356 views

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android - Kotlin - How to decide between "lateinit" and "nullable variable"?

I am confuse for lateinit and nullable variable, which one to use for variable. lateinit var c: String var d: String? ... ) { //do some stuff } See Question&Answers more detail:os...

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

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445 views

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android - Play store Beta Testing returning 404

I'm a developer and i was thrilled when I was watching Google IO 2013 and learned about the new Beta testing ... the Production phase and so on. See Question&Answers more detail:os...

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

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409 views

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android - Dialog.show() vs. Activity.showDialog()

As far as I can tell, there are two ways to show a Dialog from an Activity. Create the Dialog (for example, ... to use Dialog.show, and why? See Question&Answers more detail:os...

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

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348 views

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android - VectorDrawable with GoogleMap BitmapDescriptor

I have problem with google maps BitmapDescriptor while creating icon for MarkerOptions using VectorDrawable, API 5.0+ ... answer is still fine. See Question&Answers more detail:os...

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

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445 views

1 answer

android - Setting span size of single row in StaggeredGridLayoutManager

I have a staggered grid that has 2 columns. This is working. What I want is at position 0 for the row to ... the last row of the RecyclerView. See Question&Answers more detail:os...

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

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360 views

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android - Prevent TextView from wrapping in parent

How do I prevent a TextView, or any visual object, from wrapping to the screen and instead have them chopped ... really want this: Any ideas? See Question&Answers more detail:os...

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

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419 views

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android - What's the difference between getTargetContext() and getContext (on InstrumentationRegistry)?

I'm using the new Android Testing Support Library (com.android.support.test:runner:0.2) to run ... . InstrumentationRegistry.getTargetContext()? See Question&Answers more detail:os...

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

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302 views

1 answer

android - FragmentPagerAdapter getItem is not being triggered

Currently, with a FragmentActivity, I toggle among 2 type of Fragments using the following code. private ... s/jok9tz5ktvfcteo/viewpagerbug.zip See Question&Answers more detail:os...

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

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292 views

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android - blank screen comes before splash

The main problem is the splash screen appears after 2-3 seconds. Before splash screen a blank layout ... MainActivity" > </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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507 views

1 answer

android - add unique constraint in room database to multiple column

I have one entity in room @Entity(foreignKeys ={ @ForeignKey(entity = Label.class, parentColumns = "_id", ... room) using room library. See Question&Answers more detail:os...

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

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235 views

1 answer

android - How do I get the _count in my content provider?

What should I do to get my content provider to return the _count column with the count of records? The ... seems not to return 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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431 views

1 answer

android - Background Selector in RecyclerView Item

I'm using the RecyclerView like below: <android.support.v7.widget.RecyclerView android:id="@+id/list" android: ... touch the row.... See Question&Answers more detail:os...

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

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478 views

1 answer

android - Google Play - Fully Shadowed apk

I have an existing app on the PlayStore. I am releasing new version of the app as staged rollout. However, I ... error. Anyone else faced 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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559 views

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android - Use viewLifecycleOwner as the LifecycleOwner

I have a fragment: class MyFragment : BaseFragment() { // my StudentsViewModel instance lateinit var viewModel: ... 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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664 views

1 answer

android - How to get AppBar height in Flutter?

How can I get the height of an AppBar in Flutter? I am using the MarialApp Widget ('package:flutter/ ... MediaQuery.of(context).size.height; See Question&Answers more detail:os...

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

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578 views

1 answer

android - Padding not working on ImageButton

In an app I am working on, I have several ImageButtons. Each ImageButton has a background and content in the ... for other rows </LinearLayout> See Question&Answers more detail:os...

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

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255 views

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android - 3.2 sdk platform install problem. "Done. Nothing was installed"

I select everything in the new 3.2 update but then I get the error message "done. nothing was installed" after ... 1' which was not installed. See Question&Answers more detail:os...

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

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331 views

1 answer

android - Gradle build fails: Unable to find method 'org.gradle.api.tasks.testing.Test.getTestClassesDirs()Lorg/gradle/api/file/FileCollection;'

When i am trying to compile a imported project from github, my gradle build always fails with the following ... know why this error occures? See Question&Answers more detail:os...

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

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335 views

1 answer

android - How to fit video in Live wallpaper, by center-crop and by fitting to width/height?

Background I'm making a live wallpaper that can show a video. In the beginning I thought this is going to be ... width/height only if too large. See Question&Answers more detail:os...

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

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328 views

1 answer

android - The SDK platform-tools version ((23)) is too old to check APIs compiled with API 23

I am getting this strange error on the first line of each file in my Android Studio. Everything was OK until ... and run my code successfully. See Question&Answers more detail:os...

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

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296 views

1 answer

android - ListPreference: use string-array as Entry and integer-array as Entry Values doesn't work

I'm using in a settings.xml file a ListPreference. I want to show the user a list of 3 options to ... for a ListPreference entries and values? See Question&Answers more detail:os...

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

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214 views

1 answer

android - How to create a stagefright plugin

I have a task which involves integration of a video decoder into Stagefright(Android's multimedia framework). I ... same. 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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