Material design screen transitions in android
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This document discusses different techniques for animating screen transitions between Android activities. It covers 8 stages: 1) the default animation, 2) measuring views, 3) removing defaults, 4) setting initial positions, 5) animating to the final position, 6) reversing the animations, 7) using Lollipop screen transitions, and 8) setting custom content entrance and exit transitions. Code examples are provided for each stage and the full code is available on GitHub.
Material design screen transitions in android
- 2. SCREEN TRANSITIONS IN ANDROID GO FROM A TO B IN STYLE Created by fromAndrei Diaconu Android Iasi
- 3. ME
- 4. CODE ON GITHUB https://github.com/andreidiaconu/transitions-animate-demo Presentation (with working video) at https://andreidiaconu.github.io/transitions-animate-demo bit.ly/screen-anim
- 5. WHAT IS A SCREEN TRANSITION?
- 8. WHAT ARE WE DOING TODAY? 8 Stages
- 9. STAGE 1 - DEFAULT ANIMATION
- 10. INITIAL SETUP ACTIVITY A grid.setOnItemClickListener( DetailsActivity1.start(GridActivity1.this, imageUrl); ) ACTIVITY B static void start(...,String imageUrl){ intent = new Intent(...); } void onCreate(){ Picasso .with(this) .load(imageUrl) .into(imageView); }
- 12. STAGE 2 - MEASURING Measure view in A Send position to B Resize the image in B
- 13. SEND POSITION ACTIVITY A void onItemClick(){ DetailsActivity2.start(GridActivity2.this, imageUrl, view); } ACTIVITY B static void start(..., View initialView){ ... initialView.getGlobalVisibleRect(initialPosition); intent.putExtra("initialPosition", initialPosition); startActivity(intent); }
- 15. STAGE 3 - NO DEFAULTS Make B transparent No default animations Plan the animation
- 19. STAGE 4 - START POSITION Use translate and scale Initial position for all views
- 23. STAGE 5 - ANIMATE! Animate image to final position Fade background in Bring other views from the sides
- 24. ANIMATE THINGS BACK TO NORMAL imageView.animate() .scaleX(1) .scaleY(1) .translationX(0) .translationY(0) .setListener( void onAnimationEnd() { actionbar.animate() .translationY(0) .start(); } ).start();
- 26. STAGE 6 - REVERSE Override closing B Animate everyhitng in reverse Close B when on animation end
- 30. STAGE 7 - LOLLIPOP Drop everything Android 5 Screen Transitions Define shared elements
- 35. STAGE 8 - MAGIC Content exit transition for A Content enter transition for B Detaults for exiting B and reentering A
- 36. EXIT + ENTER CONTENT TRANSITIONS ACTIVTY A getWindow().setExitTransition(new Explode()); ACTIVTY B getWindow().setEnterTransition(new Slide());
- 38. COMPARISON
- 40. CODE ON GITHUB https://github.com/andreidiaconu/transitions-animate-demo Presentation (with working video) at https://andreidiaconu.github.io/transitions-animate-demo bit.ly/screen-anim