Recent questions tagged Android

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I want to create a ripple dynamically in code. Code: if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES. ... How can I fix this ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - build.gradle and project libs

I have a project in android studio that uses a project library. My problem is the configuartion of the gradle files. I ... :support-v4:13.0.0' } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How do I detect screen rotation

I have an activity that is showing a compass, and I need to know the orientation of the screen to properly ... that gets fired in this case? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How to access files under assets folder of other apk's?

When we browse any apk we found there is one folder named assets. Now I want to access that folder programatically. ... apk file/just app name). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - VectorDrawableCompat Resources$NotFoundException on KitKat and below

When I enable vectorDrawables.useSupportLibrary = true I get a lot of resourceNotFoundExceptions on KitKat and below ... main(Native Method)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - HelloAndroid]emulator-5554 disconnected! Cancelling 'com.example.helloandroid.HelloAndroid activity launch'!

I am new to Android. Follow the HelloAndroid Tutorials by use Eclipse. After run HelloAndroid, the AVD ... .HelloAndroid activity launch'! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Use of Context to start another Activity

To start an Activity you need an Intent, like: Intent i = new Intent(context, class) So to fill in the ... Is it different for different cases? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Attempt to reopen an already-closed object sqlitedatabase

I have a databaseHandler. I need to count the rows in table. App crashes by this error: android attempt to reopen an ... ", null, null); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - onPageFinished() never called (webview)!

I want to show a toast when the webview is totally loaded. But the toast never show up, i don't know why..here is ... ).show(); } }); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Get font scaling factor to calculate the fontsize

This question is related to Android App: how to read Font Size under Settings? I read the answer ... .permission.WRITE_SETTINGS without success. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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371 views

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android - How can we work-around the blank title in PagerTitleStrip and PagerTabStrip?

There's an issue with PagerTitleStrip and PagerTabStrip with support-v4 (version 23.0.0). The title views of a ... resolved, in 23.1.0. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - could not resolve all dependencies for configuration ':app:debugAPKCopy'

it seems that I got this problem when I try to run the app See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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385 views

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android - SupportMapFragment does not support AndroidX Fragment

import com.google.android.gms.maps.SupportMapFragment; import androidx.fragment.Fragment; ... private SupportMapFragment ... (from AndroidX) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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280 views

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android - How to get screen display metrics in application class

If I put this in some activity class it works perfectly but, when I put it in my App class the method ... ); int width = dm.widthPixels; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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339 views

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android - Gradle DSL method not found: 'implementation()'

I had this error Error:(45, 0) Gradle DSL method not found: 'implementation()' Possible causes:<ul><li>The ... 'com.google.gms.google-services' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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275 views

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android - How to perform minification and obfuscation with the JACK compiler?

Google has released a test version of their new JACK compiler for Android developers with Android Studio 2.1 ... more precise, canonical answer. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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418 views

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android - getBluetoothService called with no BluetoothManagerCallback

I am getting getBluetoothService() called with no BluetoothManagerCallback as an error frequently in my Android ... to start looking. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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473 views

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android - Fragment's onSaveInstanceState() is never called

I'm trying to save data in a Fragment's onSaveInstanceState(), but the method is never called. Can someone help? ... icicle); //More stuff } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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202 views

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android - View Pager in listview?

I am using view pager in listview item. I want to show images in view pager but the lazy ... in ViewPager ImageView imageView_PostImage; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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206 views

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android - Widgets don't respond when re-added through code

I am working on a launcher. It let's users add widgets from the list, it works fine. I store information ... in this world with this problem. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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203 views

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android - how to set camera Image orientation?

In my application I have added feature of image uploading,It works fine with all the Images except camera image ... getString(column_index); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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280 views

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android - Widget not updated on launcher restart

I've got a widget which will update itself whenever there's a configuration change (such as screen orientation) ... handlers are not lost? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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222 views

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android - How to get contact email id?

I have a listview of all the contact names in the phone. I want to get the email id (if contact have one) ... the listview. How can I do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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295 views

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android - How to get Canonical ID from GCM

I am trying to get a unique ID for my device so I can get push notifications from my server. As all ... on the server. Appreciate any help. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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313 views

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android - Firebase ServerValue.TIMESTAMP in Java data models objects

I'm new to Firebase, and I've been really enjoying it so far. I'm running into a ... and maintain compatibility with FirebaseListAdapter? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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362 views

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android - How open new activity clicking an item in listview?

I can't start a new activity clicking over an item in my listview. I want that onItemClick can open ... .system.NativeStart.main(Native Method) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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170 views

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android - OnItemClickListener was not work with the checkbox?

I have an item layout like this, and set the background by using item selector <LinearLayout xmlns:android="http: ... want to see the message See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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240 views

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android - Display the app icon if the contact is associated with the application in phone address book

I am trying to display the application icon for the phone number which is associated with the application ... these messenger applications. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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