CODEWITHSUNDEEP
androidrotationprogress-barandroid-drawable
injecteer
injecteer

Reputation: 20699

Custom ProgressBar rotates not smoothly

Looking at this question, I created the following files:

res/drawable/spinner.xml

<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:drawable="@drawable/loading"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="infinite"
android:fromDegrees="0"
android:toDegrees="718"
android:fillAfter="false"
android:startOffset="0"
android:interpolator="@android:anim/linear_interpolator"
 />

and res/layout/layout.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent">

<ProgressBar
    android:id="@+id/splashSpinnerImageView"
    android:layout_width="260dp"
    android:layout_height="260dp"
    android:layout_centerHorizontal="true"
    android:layout_centerVertical="true"
    android:indeterminateDrawable="@drawable/spinner"
    />

</RelativeLayout>

Still the spinner is rotating with visible hickups and not really smoothly. I tested it with Sony Xperia S and Z2, and it has the same behaviour.

What can I do to increase smothiness of my ProgressBar? Should I convert ProgressBar to ImageView and/or start the animation programmatically?

TIA

UPDATE:

I tried using the default android's progress_large.xml in my project, but the most 'interesting' attributes

android:framesCount="12"
android:frameDuration="100"

couldn't be found as they are defined private

Upvotes: 1

Views: 1562

Answers (1)

injecteer
injecteer

Reputation: 20699

I found a problem somewhere else. For my top-most RelativeLayout I used a PNG 1080x1920 as a background. It weighed 480 kB and with this one even the default `ProgressBar' - thanks to #pskink 's hint - was spinning with hickups.

Then I tried to make it smaller with 720x1280 pixels resolution @ 360 kB, and - magic! - the spinner started to rotate smoothly!

Android seems to have problems with hi-res pics...

Upvotes: 1

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