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My legacy holo app used to start up very fast.
Recently, I spend 1 year part-time, to port the holo app, to material designed app. Here's some significant changes which I had done.
ActionBarSherlock to AppCompat Toolbar support libraryOne of the problem I'm facing right now is slow startup speed of my material designed app. It is significant slower (more than 2 seconds) than my holo designed app.
https://youtu.be/NguClpd6rG0
https://youtu.be/TdnlZey0ABM
Note, before launching the app, I had ensure I kill the process (By going Settings -> App -> Force Stop) upfront.
As you can see from the video, once I tap on the icon, the ActionBar for the holo app is immediately shown. Where as, for material designed app, you need to wait around 2 to 3 seconds, only the Toolbar will become visible.
At first, I want to use TraceView to debug and root cause of the slowness. However, I realize TraceView can only be used on the app which is already started.
I had confirmed I don't perform any time consuming task in my Application, Activity and Fragment. Since both of my holo app & material designed app share the same logic code, I can't figure out the reason why my material designed app is slower.
Have anyone of you face the same problem? I was wondering, is there any good way for me to track down the root cause?
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Material Design was built on a mobile-first sensibility, which makes sense considering its original purpose was for designing Android apps. It also promotes animation in designs, both for user feedback and to hint at how different features function.
Material design is still growing, updating, and changing – just last year, Google made their language easier for designers to customise.
In short, Material Design provides standards for designing UI and UX for applications across desktop, browser and mobile devices. More than that, however, Material Design is a visual design language that synthesizes classic design principles with the innovation and possibility of science and technology.
Material design is a comprehensive guide for visual, motion, and interaction design across platforms and devices. To use material design in your Android apps, follow the guidelines defined in the material design specification and use the new components and styles available in the material design support library.
This is false negative! As commented by @MarkKeen and @Nilabja, this is probably caused by new Android Studio 2.0. (In previous version of Android Studio, I didn't encounter this problem)
I'm using Android Studio 2.0.
Although I launch the app by tapping on icon, the app is uploaded via green play button in Android Studio. If I rebuild the APK in release mode, with signed key, and 3 seconds white screen doesn't appear. It has on-par speed with previous holo app.
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