Recent questions tagged Android

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android - How do I set the disabled color of a button with AppCompat?

I use this style to change the background color of my Button: <style name="AccentButton" parent="Widget.AppCompat. ... can I manage this 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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android - Should we replace Action Bar by ToolBar?

I have been using ToolBar since it was added into Support v7 library. And I think I used it well. But ... somebody post some codes of 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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275 views

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android - Use Toast inside Fragment

I'm trying to show a Toast Message when user click on a Button inside a Fragment. The problem is I ... exception but no TOAST being displayed. See Question&Answers more detail:os...

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

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524 views

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android - adb uninstall failed

I am writing some sample apps. After I debug these apps, I don't see an uninstall button in my device's ... version? I am using Samsung S2. 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 colored border on cardview?

I am new to Android and this is my first question here. I am trying to add a colored vertical border ... .v7.widget.CardView> Many 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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374 views

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android - adb doesn't show nexus 5 device

Android Studio 0.3.6 Fedora 18 3.11.7-100.fc18.x86_64 Nexus 5 Kitkat Hello, I have been using my ... work. Many thanks for any suggestions, See Question&Answers more detail:os...

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

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396 views

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android - Remove focus border of EditText

How can I remove the border with appears when focusing an EditText View? I need it cause this view has little space ... , on Device a blue 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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548 views

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android studio - kotlin version that is used for building with gradle (1.1.2-5) differs from the one bundled into the IDE plugin (1.1.2-4)

Has anyone solved this issue? kotlin version that is used for building with gradle (1.1.2-5) differs from the one ... am using AS 3.0 Canary 4 See Question&Answers more detail:os...

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

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367 views

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android - Draw smoothly scaled bitmaps on Canvas

This is how I draw Bitmap on Canvas in my Android app: canvas.save(); canvas.scale(scale, scale, x, y); ... . How can I enable anti-aliasing? See Question&Answers more detail:os...

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

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368 views

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android - Where should 'app:layout_behavior' be set?

Should it be set at the AppBarLayout sibling's parent or at the first Scrollable View inside its sibling? ... -android-design-support-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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227 views

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android - Exception: attempt to acquire a reference on a close SQLiteClosable

I posted this back in May on the [android-developers] Google Group. I never heard back and was not able to ... database is open. Thanks again! See Question&Answers more detail:os...

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

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413 views

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android - Edit text for OTP with Each letter in separate positions

I'm working on a application which asks for OTP when user want to reset his password for which I need a ... right Approach?? Any Suggestions?? See Question&Answers more detail:os...

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

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632 views

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android - Unresolved reference for synthetic view when layout is in library module

using Kotlin 1.20.20 (not that it matters, older versions behaves the same) When layout is in separate library ... issue for that in KT tracker See Question&Answers more detail:os...

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

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347 views

1 answer

android - How to enable homeAsUp or call setDisplayHomeAsUpEnabled() on standalone toolbar with appcompat v21

I am trying to convert my app to use the v21 AppCompat library, so I started to use Toolbar instead of ActionBar ... /item> </style> <resources> See Question&Answers more detail:os...

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

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390 views

1 answer

android - In AVD emulator how to see sdcard folder? and Install apk to AVD?

I have created an Android emulator (Android Virtual Device), but I am unable to find out the SD card I have ... install APK files to the AVD? See Question&Answers more detail:os...

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

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291 views

1 answer

android - Deep linking and multiple app instances

I have implemented deep linking in my app. I added this intent filter in my manifest file, and the deep linking is ... ). 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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291 views

1 answer

android - transformClassesAndResourcesWithProguardForRelease FAILED

I am trying to Build my Android application with Gradle in console. But getting ... app:transformClassesAndResourcesWithProguardForRelease'. See Question&Answers more detail:os...

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

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553 views

1 answer

android - Dagger 2.2 component builder module method deprecated

I started using dagger 2.2 and the module methods in the Component builder are deprecated. This is my ... if not with the ComponentBuilder? See Question&Answers more detail:os...

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

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489 views

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android - ConstraintLayout aspect ratio

Consider the following layout file: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout ... to app:layout_constraintDimensionRatio setting? 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

1 answer

android - What is the difference between map() and switchMap() methods?

What is the difference between those 2 methods of the LiveData class? The official doc and tutorial are pretty ... s the rationale behind 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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465 views

1 answer

android - How to set text size using dimension from xml at runtime programmatically?

In dimens.xml, I have: <dimen name="text_medium">18sp</dimen> In runtime, I get this value and set the text ... size is normal on both devices. See Question&Answers more detail:os...

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

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643 views

1 answer

android - Could not find method leftShift() for arguments after updating studio 3.4

After updating studio 3.4 and Gradle version to 5.1.1 I got the error on my task as Could not find method ... line. How to resolve this 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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312 views

1 answer

android - Upload new APK to Alpha - failed

Upload new APK to Alpha Upload failed You uploaded an APK with an invalid signature (learn more about signing). ... an Android Studio project.. 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

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android - Appwidget size calculation

It might be me, but when I calculate minimum app widget sizes according to the formula given on the android page ... of thumb here as well? See Question&Answers more detail:os...

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

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283 views

1 answer

android - How to define ColorStateList for TextView?

When my ListViewItem is highlighted, I want the text to turn white. How can I define this? <selector xmlns: ... @color/testcolor5"/> </selector> 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

1 answer

android - Punch a hole in a rectangle overlay with HW acceleration enabled on View

I have a view which does some basic drawing. After this I want to draw a rectangle with a hole punched ... for a performance improvement there. See Question&Answers more detail:os...

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

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222 views

1 answer

android - import xml into another xml

I have lots of control repeated in my xml (a Button for instance). Is there any possibility to write the Button ... all the layout I need 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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363 views

1 answer

android - TextView setTextColor() not working

I programmatically create a list (no a ListView, just adding them to the parent) of such elements: <LinearLayout ... again). Why is 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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