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1 answer
1k views

I have an issue that TextView's content vibrates up and down in a moment. it looks like turns WRAP_CONTENT into MATCH_PARENT, but i'm not sure. so i want to see it slowly how to change the Texview's ...
3 votes
1 answer
87 views

The button should move to the middle of the screen when clicked. But every time I get different position of button in different devices. And I don't know how can I fix it. This code what I use: ...
0 votes
1 answer
196 views

I have an Activity and there are a TextView, an EditText, a button and, a FrameLayout. I put some words in the EditText and I push the send button, the Activity's TextView is gonna be changed with the ...
0 votes
0 answers
111 views

I understand how android picks density bucket.This answer explains how android picks density buckets. My question is why does android uses buckets instead of using the linear relation? For example ...
0 votes
1 answer
517 views

I use TypedValue.applyDimension and displayMetrix.scaledDensity to set text size in the TextView on my Xiaomi Redmi 5 plus and get surprizing results: text in the TextView is much larger than the one (...
1 vote
1 answer
2k views

I am developing an android application for mirroring android screen to car display. I used MediaProjection for getting screen; using that api I was able to mirror screen and now I want to lock android ...
0 votes
1 answer
49 views

For a custom view that draws a rectangle I see the following code in the onDraw @Override protected void onDraw(Canvas canvas) { int left = getPaddingLeft(); int right = ...
4 votes
0 answers
395 views

I'm trying to record the android mobile screen using Mediaprojection and Media Recorder. I'm able to record the screen along with audio using mic. Below is my code. private void initRecorder() { ...
1 vote
0 answers
122 views

I'm trying to use overridePendingTransition in my app but I'm using multiples screens in the same xml (I'm programming a android game) and when I switch from one screen to another I use the Visibility ...
1 vote
1 answer
4k views

Android application screen can be prevent from taking screenshot via this code @Override protected void onCreate(@Nullable Bundle savedInstanceState) { getWindow().setFlags(WindowManager....
0 votes
1 answer
2k views

I'm trying to position a view in the center to make it look good by adding 130 (margin-top) programmatically, however, I'm not sure how to give other android devices such as tablets to look the same? ...
1 vote
2 answers
1k views

I am trying to use splash screen for my app. I want to display Count down timer in my splash screen. So far I am able to achieve the splash screen working but don't know how to display count down ...
2 votes
0 answers
30 views

I've got log files of android phones to analyze and I'm trying to find the facing direction of the phone. The log has 4 columns: log_entry, time, key, value. I removed some irrelevant entries, keeping ...
1 vote
1 answer
1k views

Why camera2 supported preview size width always bigger than height?

I'm working on a project which using camera2 API. When I get the list of supported output preview size using: StreamConfigurationMap map = characteristics.get(CameraCharacteristics....
2 votes
0 answers
68 views

I want to show some screen on the lock screen when the screen is turned on. So I wrote the following code. public class BroadcastReceiverScreen extends BroadcastReceiver { @Override public void ...

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