Recent questions tagged Android

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android - encrypt data in SharedPreferences

Im currently developing a framework for oAuth 1 and 2 access to webservices and my question is, how do ... user settings in Android application 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 - Show ImageView partly behind transparent ActionBar

The Google Maps application has a transparent ActionBar, through which the map is visible. I am able to set ... ImageView behind the ActionBar? 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 save an instance of a custom class in onSaveInstanceState?

I created an instance of a custom class RestaurantList to hold my data (a list of restaurant data received ... save it in onSaveInstanceState? 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 - Post UTF-8 encoded data to server loses certain characters

I am working on project which includes communication of the server (JavaEE app) and client (Android app). XML is ... UTF-8 encoded POST fields? 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 can I determine that CollapsingToolbar is collapsed?

I need to know when CollapsingToolbar from material design library is collapsed. See Question&Answers more detail:os...

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

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383 views

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android - How to get real screen height and width?

DisplayMetrics metrics = new DisplayMetrics(); this.getWindowManager().getDefaultDisplay().getMetrics(metrics); screenWidth = ... use it works! See Question&Answers more detail:os...

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

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213 views

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android - How to set Content Type on HttpURLConnection?

Do you know how to set Content-Type on HttpURLConnection? Following code is on Blackberry and I want the ... for android? Please advise. 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 - What is orderInCategory in ActionBar menu item & why it is use for..?

Im working on action menu item and its over flow item this is my main_menu.xml <?xml version="1.0" encoding="utf- ... and what for it is used..? 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 - animateLayoutChanges does not work well with nested layout?

I have a nested layout like the following: <LinearLayout>  <LinearLayout> <!-- ... around suggestions for this issue? See Question&Answers more detail:os...

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

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257 views

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android - How to suppress the "Avoid using bundled version of Google Play services SDK" warning?

I'm using the Google Play services in my Android app so I have the dependency in my build.gradle. ... without finding much related info. 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 - Exception raised during rendering: java.lang.System.arraycopy

I have a Strange problem with the new ADT version. I have downloaded the new Eclipse from eclipse.org then I install ... .6, and it worked well. See Question&Answers more detail:os...

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

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588 views

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android - How can I make the status bar white with black icons?

I want to change the colour of the status bar for my app so that it's white with black icons (instead of the ... Is there any way of doing 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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615 views

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android - Set Indian Rupee symbol on text view

I am developing an application. And i need to set the symbol of Indian rupee on text view which is set with the ... i follow to 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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786 views

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android - Duplicate class com.google.common.util.concurrent.ListenableFuture found in modules guava-20.0.jar (com.google.guava:guava:20.0)

When I use implementation 'com.google.firebase:firebase-inappmessaging-display:17.2.0' in my app/build.gradle, ... becomes redundant? Thank you. See Question&Answers more detail:os...

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

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298 views

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android - Firebase realtime database structure in chat app

sorry for my bad English level, I'm from Argentina. I have the following messages data structure in Firebase: ... that message belongs). Thanks! See Question&Answers more detail:os...

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

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410 views

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android - Foreground service getting killed from Oreo

I have written a foreground service which is working properly for all OS version lower than Oreo. From Oreo ... find a solution for 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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262 views

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android - Make a SurfaceView larger than the screen (Fitting a camera preview to a SurfaceView larger than the display)

I have a custom camera application and I want for any preview sizes to display it in full screen mode without ... PreviewListener listener) { this.listener = listener; mCamera = ca...

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

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352 views

1 answer

android - Is there any way to get key hash from signed APK?

Is there any way to get key hash from signed APK? We have a signed Android apk file, and we want ... something like jarsigner? Any suggestions? See Question&Answers more detail:os...

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

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114 views

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android - BroadcastReceiver receives multiple identical messages for one event

I registered a receiver that listens to network events: <receiver android:label="NetworkConnection" android:name=". ... one message. WTF. See Question&Answers more detail:os...

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

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260 views

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android - Set date/time using ADB shell

I'm trying to set the date/time using the ADB shell but the shell only returns the current time. I've ... adb shell date 1318349236 any ideas? See Question&Answers more detail:os...

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

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611 views

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android - How to set Ripple effect on a LinearLayout programmatically?

I want to set the background android.R.attr.selectableItemBackground to a LinearLayout. When using XML there are no ... do)... any suggestion? See Question&Answers more detail:os...

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

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517 views

1 answer

android - View pager and fragment lifecycle

I have a ViewPager that loads three pages at a time. If I swipe from page 1 to page 2 then to 3, the ... fragment is visible, how is that done? See Question&Answers more detail:os...

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

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251 views

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android - First launch of Activity with Google Maps is very slow

I want to have SupportMapFragment in one of my Activity. I add this fragment directly to layout xml and this ... very user friendly. Thank you See Question&Answers more detail:os...

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

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580 views

1 answer

android - Hide soft keyboard on losing focus

When we have an EditText and it loses focus (to an element that doesn't need a keyboard), should the soft ... but the keyboard doesn't hide. See Question&Answers more detail:os...

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

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401 views

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android - How to solve (Could not initialize class org.codehaus.groovy.reflection.ReflectionCache) issue in react native

$ npx react-native run-android info Running jetifier to migrate libraries to AndroidX. You can disable it using ... unOnAllDevices.js:94:39) See Question&Answers more detail:os...

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

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300 views

1 answer

android - Build Unsigned APK with Gradle

Currently I'm trying to learn Gradle to build Android APKs. How to set an option in gradle to build an unsigned APK? See Question&Answers more detail:os...

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

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420 views

1 answer

android - Add gradient to imageview

I want to add a gradient on the bottom of my image . Something like this : I tried something like this but I only ... :radius="0dp" /> </shape> See Question&Answers more detail:os...

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

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323 views

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android - Kotlin : safe lambdas (no memory leak)?

After having read this article about Memory Leaks, I am wondering whether using lambdas in Kotlin Android project ... in this Jetbrains Topic. See Question&Answers more detail:os...

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

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