Recent questions tagged Android

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android - Background Service with Firebase childeventlistener not working after few minutes

I have created a service which i want to run forever without showing foreground notification. I have Firebase listener ... is no proper answer. See Question&Answers more detail:os...

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

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343 views

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android - How to monitor each of Sent SMS status?

I developed codes to send SMS to more than one persons. But current problem is that I cannot know which person is ... , is it can be done? 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

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android - Floating Action Button does not responds when it clicked/touched

I am using a floating action button(FAB) in my application to show Dialogs, everything is worked just fine when I ... worked in ASUS Zenfone 6? 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 - ExpandableListView - group indication is stretch to fit the text size

I have group indication with small icon, and i use groupIndicator to call the selector to draw it but I see ... with it's original size ? 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 testing - Wait for view pager animations with espresso?

Trying to do some tests with a ViewPager. I want to swipe between tabs, and I don't want to continue until the ... kind of timed wait in there? See Question&Answers more detail:os...

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

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267 views

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android - Combining Firebase realtime data listener with RxJava

I am using Firebase in my app, along with RxJava. Firebase is capable of notify your app whenever something ... or have a different approach? See Question&Answers more detail:os...

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

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285 views

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android - instant run java.lang.OutOfMemoryError: GC overhead limit exceeded

I have upgraded to Android Studio 2.1 and I got this error while I am trying to build & run my corporate ... the answer) the error disappears. See Question&Answers more detail:os...

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

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398 views

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android - Changing Navigation drawer hamburger icon

I am trying to change hamburger menu icon for NavigationView but I am unable to do so. Here is what I have ... but that also doesn't work. See Question&Answers more detail:os...

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

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243 views

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android - Dynamically set ViewPager height

I am trying to put a ViewPager with different fragments with different heights. I know that wrap_content is not ... What 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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606 views

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android - Suggestions for digit recognition

I'm writing an Android app to extract a Sudoku puzzle from a picture. For each cell in the 9x9 Sudoku grid ... unless it will make a difference. See Question&Answers more detail:os...

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

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577 views

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android - How to convert .pcm file to .wav or .mp3?

I am currently developing an Android Application that has audio recording and playing. I am new to dealing with ... file to just white noise? See Question&Answers more detail:os...

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

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368 views

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android - What does defStyleAttr and defStyleRes in context.obtainStyledAttributes() used for?

When I check QuickContactBadge in FrameLayout, I found following code: public QuickContactBadge(Context context, AttributeSet ... it used for. See Question&Answers more detail:os...

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

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439 views

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android - Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

I tried using OkHttp and Picasso (following this answer) for disk caching of images that I was downloading ... which classes are necessary? See Question&Answers more detail:os...

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

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338 views

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android - Using WebView in Fragment

recently I started creating an Android app with WebView. The app has grown and I changed the activity with ... " /> </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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380 views

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android - Programmatically take a screenshot from service

it is easy to this code Bitmap bitmap; View v1 = MyView.getRootView(); v1.setDrawingCacheEnabled(true); bitmap = Bitmap. ... 2 .... and so on See Question&Answers more detail:os...

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

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815 views

1 answer

android - Send backspace key event to edit text

I don't know how to send a backspace key event to a EditText from my own button. Here is what i tried: ... ,KeyEvent.KEYCODE_P)); } }); See Question&Answers more detail:os...

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

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893 views

1 answer

android - What's the meaning of new @SystemApi annotation, any difference from @hide?

Android introduced @SystemApi in its SDK source code recently. Seems like same in effect as the @hide annotation before, ... > * * @hide */ See Question&Answers more detail:os...

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

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464 views

1 answer

android - How to keep ExpandableListView in expanded status?

I use SimpleExpandableListAdapter in my ExpandableListActivity When user click the group row, the children list is expanded ... does not 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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274 views

1 answer

android - Change Relative layout width and height dynamically

Hi i am using following layout structure inside LinearLayout <TableLayout android:layout_width="fill_parent" android: ... another way... See Question&Answers more detail:os...

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

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335 views

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android - Get Path and Filename from Camera intent result

I want to make a picture with the camera intent and save it to the default DCIM folder. Then I want ... the filepath now in onActivityResult? See Question&Answers more detail:os...

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

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403 views

1 answer

android - How to mix / overlay two mp3 audio file into one mp3 file (not concatenate)

I want to merge two mp3 files into one mp3 file.for example if 1st file is 1min and 2nd file is 30 sec ... min it should play both the files. See Question&Answers more detail:os...

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

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1.2k views

1 answer

android - Adding a padding/margin to a Spannable

I'm using BackgroundColorSpan to customize parts of a TextView. Here's the code I have: String s = "9. ... padding/margin to these Spannables? See Question&Answers more detail:os...

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

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361 views

1 answer

android - How can I get the primary color from my app theme?

In my Android java code, how can I reference the color "colorPrimary" set in my theme? I have the following ... the future. Is this 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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480 views

1 answer

android - PhoneGap 3 plugin: exec() call to unknown plugin "..."

I've been trying to upgrade a plugin to v3, and I've managed to get past the plugin loading issues, ... /github.com/remy/phonegap_test - Remy See Question&Answers more detail:os...

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

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568 views

1 answer

android - MediaStore.Images.Media.insertImage is returning null when trying to save the image

I am using an custom view and in that i am using an canvas in which a user can draw anything and after that i ... could not be saved."..... 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

1 answer

android - Preference Activity on Preference Click Listener

I am building a Preference Activity where most of the preferences in the list will be executing code and not modifying a ... any way to fix 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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389 views

1 answer

android - Gradle signing app with packageRelease “specified for property 'signingConfig.storeFile' does not exist”

I am trying to test an app with Build Variant in release mode in Android Studio with a project using Gradle. ... I solve this error in Gradle? See Question&Answers more detail:os...

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

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280 views

1 answer

android - Show a progress bar when an Activity is loading

I have a ListActivity which launches another Activity based on the list selection. This second Activity needs to load a ... .this.finish(); } } See Question&Answers more detail:os...

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

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