Recent questions tagged Android

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I'm new to programming. I was using Graphical Layout then when I was reading xml file, I saw FrameLayout. ... FrameLayout and what does it do? See Question&Answers more detail:os...

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

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942 views

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android - How to center vector drawable in layer-list without scaling

I am attempting to use a VectorDrawable in a LayerList without scaling the vector. For example: <layer-list> ... do this using a VectorDrawable? See Question&Answers more detail:os...

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

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376 views

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android studio - Expiring Daemon because JVM heap space is exhausted

I just updated the Android Studio to 3.5 Beta 1 and I'm getting Expiring Daemon because JVM heap space is ... have any idea regarding 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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304 views

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android - Method setDrawerListener is deprecated

While I'm doing something on my app, I see that the navigation drawer on my app ... drawerLayout.setDrawerListener(actionBarDrawerToggle); See Question&Answers more detail:os...

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

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332 views

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android - Listen to incoming Whatsapp messages/notifications

I'm working on a notification based app, for which I need to listen to incoming notifications. I've been able ... Name as "com.whatsapp"? 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

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android - Dagger2 Custom Scopes : How do custom-scopes (@ActivityScope) actually work?

I am reading the source code for Dagger2 Component Scopes Test on GitHub, and I've seen a "custom scope ... to subscope one superscope.) See Question&Answers more detail:os...

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

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375 views

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android - Handling ActionBar title with the fragment back stack?

I have an Activity where I load in a ListFragment and, upon clicking, it drills down a level and a new type of ... (null); ft.commit(); } 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 - Gradle: More than one variant of project :myLib matches the consumer attributes

A library that I wrote myLib uses RemoteMessage from Firebase, the app itself also uses Firebase. Using gradle 4 ... value 'java-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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android - How to apply shape and selector simultaneously for Button?

I have applied a shape for a button like: <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http:// ... well. Is it possible ...??? 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 resolve NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;

I have upgraded my Android Studio to Android Studio 3.2 Build #AI-181.5540.7.32.5014246, built on September 17, 2018 ... -core:3.1.0-alpha4' } See Question&Answers more detail:os...

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

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215 views

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android - Setting text in EditText Kotlin

I am trying to set text in a EditText but it says: Type mismatch. Required: Editable Found: String My code is ... I am using kotlin, not Java. 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 - Retrofit and OkHttp basic authentication

I am trying to add basic authentication (username and password) to a Retrofit OkHttp client. This is the code I have ... And how do 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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432 views

1 answer

android - How to use specified weights for fonts in XML

Using the Fonts in XML feature you can specify various font weights for a font family. For example: <?xml ... the weight in XML styling. See Question&Answers more detail:os...

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

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190 views

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android - How to add floating label on Spinner

After using the Android Design Support Library's TextInputLayout to place a floating label above an EditText component ... I originally wanted. See Question&Answers more detail:os...

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

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197 views

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android - Displaying activity with custom animation

I have a widget which starts an activity when it is clicked. I'd like to have some kind of fancy animation ... . Any help is much 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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553 views

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android - Listview selector with colored background and ripple effect

Standard ListView selector in android L developer preview uses colorControlHighlight for the ripple effect on touch and ... the touch position). See Question&Answers more detail:os...

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

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661 views

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android - Change Spinner dropdown icon

The solutions I found to change the spinner dropdown icon where all: 1. create a custom drawable <?xml version=" ... I just want another arrow. See Question&Answers more detail:os...

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

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288 views

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android - How to Work With Different Screen Resolutions

I'm using Unity 4.3.3 for my game. I'm making a game for Android and iOS devices. Since I'm ... > iOS > OtherSettings > Target Resolution? See Question&Answers more detail:os...

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

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486 views

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android - Observing LiveData from ViewModel

I have a separate class in which I handle data fetching (specifically Firebase) and I usually return LiveData objects ... . What should I do? See Question&Answers more detail:os...

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

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322 views

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android - 3rd-party Gradle plug-ins may be the cause

After updating to Android Studio 3.1 I got this error message: The project works fine and this is mostly just a ... 'proguard-rules.pro' } } } See Question&Answers more detail:os...

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

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771 views

1 answer

android - Visual Studio Code - Target of URI doesn't exist 'package:flutter/material.dart'

I've just set up my Macbook for flutter development, So I downloaded flutter SDK, and placed it in my Documents ... find that 'import' package? See Question&Answers more detail:os...

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

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272 views

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android - Cause: buildOutput.apkData must not be null

My android application using Kotlin is throwing this exception when I try to Run 'app' in the emulator o in my ... toList(_Sequences.kt:712) ... See Question&Answers more detail:os...

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

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450 views

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android - How Does OpenCV ORB Feature Detector Work?

I want to implement a feature-based alignment algorithm using the ORB feature detector and extractor. So far, ... opencv documentation use 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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152 views

1 answer

android - How to avoid CollapsingToolbarLayout not being snapped or being "wobbly" when scrolling?

Background Suppose you have an app you've created that has a similar UI as the one you can create via the ... .fling(velocityX, velocityY) } } See Question&Answers more detail:os...

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

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186 views

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android - Slide down effect on ExpandableListView

Is it possible to have a nice slide up/down effect when expanding/collapsing an item of a ExpandableListView? If yes, how? 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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250 views

1 answer

android - Handle Volley error

I want to handle and show some message in onErrorResponse below is my code. String url = MainActivity.strHostUrl+ ... and Toast message here. See Question&Answers more detail:os...

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

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166 views

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android - Google Maps Lite Mode causes jank in RecyclerView

I have a RecyclerView which is a vertical scrolling list of items. Each list item contains a Google Maps V2 MapView ... in a ListView. See here See Question&Answers more detail:os...

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

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241 views

1 answer

android - Using mail and password to authenticate via the REST API [Firebase]

I was wondering whether it is possible to actually authenticate to the Firebase REST API withouth using the ... help or advice 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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