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android - How to generate the spectrogram of a wav file in Matlab with frequency on the x-axis
    As part of a research project, I would like to analyze a sound file by generating it's spectrogram. I have ... on this is greatly 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 - multiple cursor shown in Edittext
    i am facing a weird problem. In my EditText: 1) I can see multiple cursor when user type anything. 2) Hint ... " /> Any suggestion are welcome. 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 - Add gap between group items in ExpandableListView
    How can I add a gap (lets say 20dp) between group items in ExpandableListView? I have custom group layout with ... to parent doesn't 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 - Searchview with back button
    I'm implementing searchview without Actionbar and toolbar. Everything is fixed, just back button remains. Below is my ... help would be great. 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 implement Infinite Scrolling with RecyclerView?
    I have a recycler and inside of it there are cardviews where I fetch information from a REST service, I'm trying ... GET"); return android; } } See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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953 views
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android - Google docs PDF viewer
    In accordance with advice of many I'm trying to use goolge docs to show a pdf in a WebView. Here is my code ... obvious I'm missing? Thank you. 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 - readBooleanArray throws RuntimeException("bad array lengths")
    I knew that parcelable are hide something secret, but didn't thought that i need to know them, unitl now. Here ... other... 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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android - Firebase childEventListener return value when path does not exist
    Reading the documentation, It seems childEventListener does not fire when the path does not exist. This is a problem ... not fire in that 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 - PhoneGap - OnDeviceReady method not getting called
    I am developing my first application in phonegap (android). index.html <!DOCTYPE html> <html> <head> <title>Device ... /> in manifest.xml file. 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 - Calabash handling "Complete action using" dialog
    I want to test sharing functionality of an app but I have no idea how to handle android dialog "Complete ... shell or something like 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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android - Refactor maven block in gradle
    I'm working on an android project, and have a number of custom repositories using the same credentials: repositories { ... of a mystery to me. 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 - In the onDraw() method, why does the supplied Canvas already have scale?
    In a current test project I have a custom View, that I have named SVGView, that simply paints some vector ... painting to. Thanks, Trev 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 - Installing an APK using pm command
    I tried updating an APK using this code: Process process; process = Runtime.getRuntime().exec(new String[] {" ... like using the intent method. 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 - image upload using multipart retrofit 2
    Actually, I'm new in this field.facing some problem during image upload.the process automatically suspended after some ... on its main thread. 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 - Logcat showing information 3 times on AVD
    When using LogCat the logs are shown three times. Can anyone explain why this is happening? A sample of the ... library set to null in oncreate See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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438 views
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android - CheckBox[] with onClickListener[]?
    EDIT: this question is mostly closed and the only problems i have with this code are discussed here For part of my ... }// end of Impacts.class See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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511 views
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android - How to parse JSON with Volley?
    I want to parse this json (my) with tutorial (source code). My code is: public class MainActivity extends Activity { ... So, how to parse json? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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516 views
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android - NetworkOnMainThreadException When reading from web
    When i try to read single line of text from website i get error (NetworkOnMainThreadException). I tryed few thing but ... sb.toString(); } } 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 - skipped 147 frames! The application may be doing too much work on its main thread
    I understand the meaning of this error. I found many similar questions here at stackoverflow.com and I have tried ... let me know the problem. 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 - SQLite count example
    I am using SQLite in Android. I have the query, query executed and how to print count from cursor. Cursor ... I have no record in table. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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453 views
1 answer
android - How to call method from another class without passing context?
    I am currently trying to call a method from a utility class that will reference a new cursor created for ... would be greatly 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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455 views
1 answer
android - Firebase Authentication is failing with "Developer Error" after uploading apk to google play store
    I am using Firebase Authentication for authenticating user in my application. Everything was working fine till I was ... ? 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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470 views
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android - Passing data from New activity to old activity?
    I am trying to receive data from new Activity to old Activity. In other words, newer Activity must send intend ... it ? Please advice. 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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484 views
1 answer
android - Weird miscalculation when trying to detect if WebView scrolled to bottom
    I have a problem detecting when WebView is scrolled to bottom. I use following code: @Override protected void ... that coming from. 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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android - Dagger + Proguard obfuscation, Errors creating object graph
    Running an obfuscated version of my application throws the following stacktrace java.lang.RuntimeException: Unable to ... + dependencies 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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496 views
1 answer
android - JSON Data to send Push Notification to all of the registered devices using Firebase
    This is the JSON structure when I need to send the notification to specific device using Firebase. So how ... using Firebase in android? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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393 views
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android - Design pattern for alternate action if app in foreground?
    I'm building an action which utilizes Google Cloud Messaging for receiving push notifications. This involves a couple ... vs. the background? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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477 views
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android - How can I create positive and negative buttons at custom dialogs
    I want to create a custom dialog. So i create a template 'dialog_change' and I open the dialog. Dialog myDialog = ... bottom. 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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