Recent questions tagged Android

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android - How to get a Uri object from Bitmap

On a certain tap event, I ask the user to add an image. So I provide two options: To add from gallery. ... object of that bitmap object? 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 - java.lang.SecurityException: MODE_WORLD_READABLE no longer supported

The exception only occurs in Android 7.0 Nougat (emulator) devices. java.lang.SecurityException: ... Instrumentation.java:1024) See Question&Answers more detail:os...

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

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411 views

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android - No cached version of com.google.gms:google-services:1.x.x available for offline mode

Error:No cached version of com.google.gms:google-services:1.4.0-beta3 available for offline mode. Disable ... and build my android 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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419 views

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android - The Activity's LayoutInflater already has a Factory installed so we can not install AppCompat's

I'm using AppCompat library (com.android.support:appcompat-v7:22.1.0) in my app. I created an ActionBar in a ... AppCompat's How to solve 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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631 views

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android - Navigation Drawer Icon (ic_drawer) not showing

I am implementing a navigation drawer for my app. Now it works perfectly except for one small glitch. ... super.onOptionsItemSelected(item); } See Question&Answers more detail:os...

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

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682 views

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android - How open fragment from RecyclerView.Adapter<CardAdapter.ViewHolder>

1.TabLayout - tab1 (Fragment1) - tab2 (Fragment2) - tab3 (Fragment3) * RecyclerView + CardView (OnClick) On CardView ... } }); } } } See Question&Answers more detail:os...

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

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200 views

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android - No static method zzUr() in Firebase when I try to use Analytics with Notifications

I'm starting to use the Firebase Cloud Messaging. I have only the example code of the guide to use the ... } Any help will 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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391 views

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android - reslayoutContact_us.xml: Invalid file name: must contain only [a-z0-9_.]

public class main extends Activity { EditText username,password1; Button sub; String uname,pass; @Override public void onCreate( ... [a-z0-9_.] See Question&Answers more detail:os...

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

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331 views

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android - Logo are not displayed in Actionbar, using AppCompat

I don't know where I missed something, but I can't set my logo in my actionbar. My AndroidManifest.xml: ... actionbar is displaying my logo. :) See Question&Answers more detail:os...

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

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445 views

1 answer

android - java.lang.BootstrapMethodError: Exception from call site #4 bootstrap method ,when initializing Retrofit

I am using retrofit to get sample data from "https://jsonplaceholder.typicode.com/comments" but I am getting this ... why this error is coming. See Question&Answers more detail:os...

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

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302 views

1 answer

android - Can't get Action Bar in fragment class

I have an activity with three fragment classes inside it. I get an error when trying to change the action bar title ... ("Other"); } } } See Question&Answers more detail:os...

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

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269 views

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android - Can't update ADT plugin in Eclipse to version 23.0.0 or above

I am beginner in Android programming. My problem is, that I can not update ADT. The problem started, when after ... , please? 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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175 views

1 answer

android - Project has no target set. Edit the project properties to set one

When I import a new existing project into Eclipse, I get the following error message when attempting to execute ... Any help is 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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219 views

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android - Read speed of SharedPreferences

How fast are SharedPreferences? Is there a way to put them in memory for reading? I have a small amount ... of SharedPreferences. Any thoughts? See Question&Answers more detail:os...

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

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608 views

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android - Unable to start service Intent: not found

I've the same issue described here but i can't understand whats wrong. My issue is: Unable to start ... android:label="@string/moody_service" > See Question&Answers more detail:os...

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

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709 views

1 answer

android - findFragmentById return null

When I call findFragmentById() with the id of my fragment, it returns null. activity_main.xml <?xml version="1. ... ); I get the fragment. See Question&Answers more detail:os...

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

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201 views

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android - How do I make RecyclerView update its layout?

I have a RecyclerView with a bunch of custom views which may change height after a while, because they contain ... this was not a 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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393 views

1 answer

android - AppCompatButton backgroundTint API < 21

I want to use ripple effects on Buttons. AppCompat v22.1 added AppCompatButton and new functionalities to AppCompat ... on older API versions? See Question&Answers more detail:os...

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

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271 views

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android - How to get view from drawer header layout with binding in activity?

So this is my activity_main.xml: <?xml version="1.0" encoding="utf-8"?> <layout xmlns: ... tvLoggedUserEmail = binding.tvLoggedUserEmail;** See Question&Answers more detail:os...

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

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707 views

1 answer

android - java.lang.InstantiationException: class has no zero argument constructor

I am trying to use a BroadcastReceiver as an inner class to track the network state but I got the exception in the title. ... Flag No 1"); } } } See Question&Answers more detail:os...

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

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647 views

1 answer

android - Change text color of alert dialog

I have a popup for downloading the audio instruction in my app. What I am trying to do is I want to change ... tell me what i am doing wrong? See Question&Answers more detail:os...

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

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505 views

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android - Crashlytics found an invalid API key - AndroidStudio build

I saw all other questions, but none of accepted answers is working for me. By following integration steps ... [email protected] for assistance. See Question&Answers more detail:os...

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

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357 views

1 answer

android - RadioGroup: How to check programmatically

I create a RadioGroup from XML <RadioGroup android:id="@+id/option" android:layout_width="match_parent" android: ... is checked. Any 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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397 views

1 answer

android - Hide Scrollbar of HorizontalScrollView

How can I get rid of the scrollbars on a HorizontalScrollView? See Question&Answers more detail:os...

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

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539 views

1 answer

android - Need to call an activity back from javascript interface made for WebView

I am working on an application which uses web view in one of it's activities. I have attached a java script ... an activity. 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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240 views

1 answer

android - Encrypt and decrypt string using ChaCha20

I want to decrypt and encrypt a string using chacha20 BouncyCastleProvider is using chacha20 technique. So I included it ... am I doing wrong. See Question&Answers more detail:os...

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

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218 views

1 answer

android - How to get RTSP URL?

I am Developing an application which consists of video-view,Here is my problem when I have loaded normal url is not ... Thanks in advance!!!!!! See Question&Answers more detail:os...

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

0 votes

219 views

1 answer

android - How to store text to speech output as WAV file?

I am using the following code to store Text to Speech output as wav file in my application. I am not sure where is the ... : " + i); } } } See Question&Answers more detail:os...

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

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