Recent questions tagged Android

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android - How to control zoom in webView

I have this code: [...] { webView = (WebView) findViewById(R.id.webView1); webView.setInitialScale(getScale(Double. ... point. How 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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android - get SignalStrength without Using PhoneStateListener onSignalStrengthchanged

does anyone know how to get the signal strength without having to call the onSignalStrengthChanged. The problem with ... . Thanks in advance. 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 - PowerManager wakelock not waking device up from service

I've an app that has a background service running every minute. I want the service to wake the device up if it's ... .isHeld()) wl.release(); } 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 - Make sure the Cursor is initialized correctly before accessing data from it

Im trying to get data from my DB. This is my code: String[] columns = new String[] { ... problem is. Thanks for helping. 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 - Blue-tooth file not sent error

I am trying to send a file from my application on android phone to other devices (they may or may not be ... it is created in Cache directory? 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 create a Table with a column of type BLOB in a DBAdapter

I have a global DBAdapter and also for each Table one. In my global DB-Adapter I added the type "BLOB" ... for your Answer Best Regards safari 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 - Access a typeface once from asset and use it as a reference

I am trying to create a method that returns titleFont and contentFont typeface so that it would improve efficiency ... result.getContent()); } 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 - Setting Ringtone notification from SD card file

My goal is to set the users notification sound from a file that is stored onto the SD card from with in the ... can be set as a notification. 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 put controls on screen?

I am working on a project using Unity/Vuforia to build an Augmented Reality app for Android and need some help ... onscreen. Thanks in advance! 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 - Keep data from the Firebase Realtime Database always in sync

I'm currently re-working an app of mine which updates it's internal SQLite database by fetching raw data ... based on own expiriences welcome! See Question&Answers more detail:os...

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

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165 views

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android - How to draw path with variable width in canvas

I am using the following line of code to draw a path on a Canvas. So far everything works fine and I can ... max(lastTouchY, eventY); } } } 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 - Sum firebase data efficiently up

I have an app where I have up to a few thousand entries in a firebase table. Now someone is connecting to ... and then only listen for changes? See Question&Answers more detail:os...

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

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352 views

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android - How do I add child items dynamically to an expandable listview.?

For example, I have an edit text and a button. When the button is pressed the text is added to the first ... I have so far please request.) See Question&Answers more detail:os...

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

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265 views

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android - Can I combine my code into some kind of "global activity"?

Is there any global activity on Android such that I put my code in that one activity, and it affects all ... use some kind of global activity. See Question&Answers more detail:os...

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

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215 views

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android - How to restore topic subscriptions after refreshed token?

So I was using gcm tokens to subscribe to specific topics. It was working fine. But now I uninstalled and ... solution for that. 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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291 views

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android - Java Can't create handler inside thread that has not called Looper.prepare()

I saw most of the related questions, but I couldn't find any that fixed my problem. This is my code, and ... Handler handler = new Handler() {) See Question&Answers more detail:os...

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

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130 views

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android - How to show entire world and put markers on it?

Background I want to show the popular map of the entire world, and put markers on it. The problem I tried to ... and somehow put markers on it? See Question&Answers more detail:os...

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

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195 views

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android - Cursor and Adapter

can someone see what I have wrong with my cursor: The data from the db is not returned (at least the screen ... Alerts.sdCardMissing(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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159 views

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android - What is LayoutInflater and how do I use it properly?

What exactly is a LayoutInflater in Android? What is the intended method to use it? I could find different ... helpful to beginners like me See Question&Answers more detail:os...

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

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463 views

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android - refresh a fragment from its parent activity

I have almost the exact same problem as this question here: Android, How to restart/refresh a fragment from ... for my fragment are static. See Question&Answers more detail:os...

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

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133 views

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android - Returning an Image to whatsapp

I've been trying to build an app that shows up as an optional image source when a user tries to share an image ... I'm at a complete loss here. See Question&Answers more detail:os...

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

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246 views

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android - getLastKnownLocation method always returns null

I have a problem to fixed position. I use getLastKnownLocation(LocationManager.NETWORK_PROVIDER); but always return null, ... with my code. See Question&Answers more detail:os...

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

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423 views

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android - Why is the ACTION_CHECK_TTS_DATA Intent "awkward to use"?

The official introduction to Text-To-Speech in Android says that "upon creating your activity, a good first step is to ... so "awkward to use"? See Question&Answers more detail:os...

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

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341 views

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android - Video View not playing youtube video

I am trying to play a youtube video in a Video View. I have laid out the xml like this: <VideoView ... appreciate any advice on this. 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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421 views

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android - RecyclerView adapter show only first item

I know that this question has been asked many times, but the answers doesn't work for me. I am trying to use ... are. So what I am missing ? See Question&Answers more detail:os...

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

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324 views

1 answer

android - How to add time to countdown timer?

I know there is a post like this but it does not answer the question clearly. I have a little game where ... Any help would be appreciated :) See Question&Answers more detail:os...

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

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288 views

1 answer

android - Photo rotate 90 degree while capture in some phones

Photo is rotating 90 degree while capturing from camera in samsung mobile rest of other mobiles its working fine. ... = true; } } See Question&Answers more detail:os...

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

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227 views

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android - Permissions policy that will limit which apps are allowed to request Call Log and SMS permissions

Today I got a mail like this, according to this I'm not able to use RECEIVE_SMS READ_SMS anymore in ... compliant with the Permissions policy. See Question&Answers more detail:os...

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

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