Recent questions tagged Android

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android - No such table android_metadata, what's the problem?

I am copying a pre-existing database to /data/data/packagename/databases using code learned from using-your- ... database table Thanks 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 - Position Video Inside a VideoView

So I have extended VideoView's onMeasure to scale up the video to fit inside a fullscreen view. here is how: ... of the VideoView set to center. See Question&Answers more detail:os...

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

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307 views

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android - How to fix: Error device not found with ADB.exe

In cmd when I try to do the command: adb shell it shows device not found error. Can someone help me please. It'll 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 - How to change start destination of a navigation graph programmatically [Jetpack]

Basically, I have the following navigation graph: I want to change my starting point in navigation graph to ... there any other solution? See Question&Answers more detail:os...

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

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178 views

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android - BottomNavigationView with more than 3 Items: tab title is hiding

I'm using BottomNavigationView with using Android Support Desing Library 25. But when I switch the tabs, the other tab's ... "ifRoom" /> </menu> See Question&Answers more detail:os...

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

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160 views

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android - Unsupported method: AndroidProject.getPluginGeneration() while running project

I'm trying to run my Project with Android Studio 2.2 but I get this error Unsupported method: AndroidProject. ... how do I solve 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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202 views

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android - Intent Filter to Launch My Activity when custom URI is clicked

I am trying to allow a URI to be registered to open up with my app. Like the PatternRepository on the ... /> </application> </manifest> 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 - Animation transition between activities using FLAG_ACTIVITY_CLEAR_TOP

In my android app, I'm making a method that pop all activities and bring up the first activity. I use this ... is tapped) thanks for 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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android - Paging Library Filter/Search

I am using the Android Paging Library like described here: https://developer.android.com/topic/libraries/ ... display only matching Users? 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 - Dagger 2 injecting parameters of constructor

I saw the following example on the Dagger 2 website: class Thermosiphon implements Pump { private final Heater ... am I missing something? See Question&Answers more detail:os...

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

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321 views

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android - Sync Adapter without Account

I need to fetch some data over the cloud from my app. I've watched the google IO video on RESTful android apps @ ... use Sync Adapter. :S ??? See Question&Answers more detail:os...

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

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191 views

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android - Socket connections and Polling. Which is a better solution in terms of battery life?

So... I'm making an application for Android. The application needs to send and receive realtime chat data (needs ... chat tab is open? 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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443 views

1 answer

android - SpannableString: Is it possible to apply two or more RelativeSizeSpans?

I am trying to construct a SpannableString such that it looks like this: Two characters (m, s) should be smaller ... reasons (many GC calls). See Question&Answers more detail:os...

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

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174 views

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android - localization of assets files

I have several html files in assets folder. How can I localize them? Is my only option to put some hardcode ... the right file based on locale? See Question&Answers more detail:os...

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

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598 views

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android - How to remove border/shadow from lollipop buttons

The buttons looks fine for api < 21. However, the +21 versions creates this border or shadow that is shown on ... ">10dp</item> </style> 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

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android - Is a Dalvik virtual machine instance created for each application?

Is a Dalvik virtual machine instance created for each application, or all Android applications share the same Dalvik virtual machine instance? See Question&Answers more detail:os...

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

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388 views

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android - How to get a result from fragment using Navigation Architecture Component?

Let's say that we have two fragments: MainFragment and SelectionFragment. The second one is build for ... Navigation Architecture Component? See Question&Answers more detail:os...

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

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240 views

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android - How to make transparent gradient?

I have the following gradient: <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android= ... @drawable/stocks_selected_gradient"> </ListView> See Question&Answers more detail:os...

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

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195 views

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android - Restoring MapView's state on rotate and on back

Background I have a larger application in which I had/have several problems with new Google Maps API. I tried ... and updated the code above. See Question&Answers more detail:os...

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

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257 views

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android - ViewPager Fragments – Shared Element Transitions

An app I'm developing displays a grid of images. When you tap an image, it goes into the details view ... and triggers the activated state. 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 - How to pass values from RecycleAdapter to MainActivity or Other Activities

I am working on a shopping cart app,Items are displayed as below.There is a plus, minus (+/-) buttons to choose the ... ; } } } How to do 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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166 views

1 answer

android - How to move a map under a marker?

Suppose that we have a centered marker on the map, when we move the map with our fingers we can see that ... ="22sp" /> </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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347 views

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android - Make navigation drawer draw behind status bar

I'm trying to create a Nav Drawer like the one from the Material spec (like the one from the ... .setStatusBarBackground(R.color.primary_dark); 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 - Slider on my PreferenceScreen

I want my preference menu to have something to change the duration of a vibration. There is no slider tag for prefs ... the best way to do 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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824 views

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android - Changing step values in seekbar?

I have a seekbar, while moving it I want to change values from 0 to 200. I have a TextView, where I display ... or an example how to do 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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260 views

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android - Offseting the center of the MapFragment for an animation moving both the target lat/lng and the zoom level

I've got a UI that has a MapFragment with a transparent View overlaid on top of it. The map takes up the ... even with the zoom level changing? See Question&Answers more detail:os...

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

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330 views

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android - Creating a Fragment: constructor vs newInstance()

I recently grew tired of constantly having to know String keys to pass arguments into Bundles when creating my ... have insight into 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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522 views

1 answer

android - IllegalStateException: Fragment already added in the tabhost fragment

FATAL EXCEPTION: main Process: com.example.loan, PID: 24169 java.lang.IllegalStateException: Fragment already added: ... ? Thanks for helping See Question&Answers more detail:os...

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

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