Animate Me, if you don't do it for me do it for chet (DroidCon Paris)
Download as PPTX, PDF0 likes1,743 views
The document provides a comprehensive guide on Android animations, detailing various animation techniques such as object animations, interpolators, and transition animations. It emphasizes the importance of optimization and simplicity while demonstrating code examples for implementing animations in Android applications. The author also shares best practices and tools for creating animated vector drawables and managing different animation types effectively.
![Alpha
Rotate
Translate
Scale
And the plantransformations are yours
V1
<set
android:interpolator="@[package:]anim/interpolator_resource">
<alpha
android:duration="float"
android:fromAlpha="float" android:toAlpha="float" />
<scale
android:duration="float"
android:fromXScale="float" android:toXScale="float"
android:fromYScale="float" android:toYScale="float"
android:pivotX="float" android:pivotY="float" />
<translate
android:duration="float"
android:fromXDelta="float" android:toXDelta="float"
android:fromYDelta="float" android:toYDelta="float" />
<rotate
android:duration="float"
android:fromDegrees="float" android:toDegrees="float"
android:pivotX="float" android:pivotY="float" />
<set>
...
</set>
</set>
Animation animIn= AnimationUtils.loadAnimation(ctx, R.anim.generic_anim);
edtMessage.startAnimation(animIn);
animation/generic_anim.xml
Onlychange pixels notthe state of the view](https://image.slidesharecdn.com/5animationsconferencesdroidconfr-151111195307-lva1-app6892/85/Animate-Me-if-you-don-t-do-it-for-me-do-it-for-chet-DroidCon-Paris-8-320.jpg)
![78
public class MyPageTransformer implements ViewPager.PageTransformer{
RecyclerView myRecyclerView;
public void transformPage(View view, float position) {
//Only the main layout is passed here/
myRecyclerView= (RecyclerView) view.findViewById(R.id.my_recycler_view);
if (position < -1) { // [-Infinity,-1)This page is way off-screen to the left.
view.setAlpha(0); }
else if (position < 1) { //in the visible range [-1,1]
myRecyclerView.setAlpha(1-Math.abs(position));
view.setAlpha(1);
if (position < 0) {//coming from left
myRecyclerView.setRotationX((position * 360));
} else {//coming from right
myRecyclerView.setRotationX(-1*position *360);
}
}
else { // (1,+Infinity] // This page is way off-screen to the right.
view.setAlpha(0); }
}}
V13](https://image.slidesharecdn.com/5animationsconferencesdroidconfr-151111195307-lva1-app6892/85/Animate-Me-if-you-don-t-do-it-for-me-do-it-for-chet-DroidCon-Paris-77-320.jpg)
Animate Me, if you don't do it for me do it for chet (DroidCon Paris)
- 1. #AnimateMe by(Mathias Seguy== Android2EE){ French AndroidTrainer}
- 2. If you don't do it for me, do it for chet !
- 4. Animation is life Animation is comprehension Animation is engagements Animationis delightedyour UX Animation is necessary Animationis simple
- 6. Because we wantyou to animate your application !
- 8. Alpha Rotate Translate Scale And the plantransformations are yours V1 <set android:interpolator="@[package:]anim/interpolator_resource"> <alpha android:duration="float" android:fromAlpha="float" android:toAlpha="float" /> <scale android:duration="float" android:fromXScale="float" android:toXScale="float" android:fromYScale="float" android:toYScale="float" android:pivotX="float" android:pivotY="float" /> <translate android:duration="float" android:fromXDelta="float" android:toXDelta="float" android:fromYDelta="float" android:toYDelta="float" /> <rotate android:duration="float" android:fromDegrees="float" android:toDegrees="float" android:pivotX="float" android:pivotY="float" /> <set> ... </set> </set> Animation animIn= AnimationUtils.loadAnimation(ctx, R.anim.generic_anim); edtMessage.startAnimation(animIn); animation/generic_anim.xml Onlychange pixels notthe state of the view
- 9. Makes animations generic V11 /** * The in Animation for after HC */ AnimatorSet animInHC; animInHC = (AnimatorSet) AnimatorInflater.loadAnimator(ctx, R.animator.generic_anim); animInHC.setTarget(edtMessage); animInHC.setTarget(btnAdd); animInHC.start(); <set > <objectAnimator android:duration="1000" android:propertyName="translationX" android:valueFrom="-250" android:valueTo="0" android:valueType="floatType" /> <objectAnimator android:duration="1000" android:propertyName="scaleX" android:valueFrom="0.0" android:valueTo="1.0" android:valueType="floatType" /> </set> animator-v11/generic_anim.xml Changes the state of the object
- 10. Uses Handler and Runnable Simplebut dangerous(memory leak, runsin UIthread, can generates frames drops) Not optimized Animationis changingthe view/objectstate by droppingchanges inthe UI thread Handler clipDrawableHandler=new Handler(); Runnable clipDrawableRunnable=new Runnable() { @Override public void run() { myView.changeSomething(level); clipDrawableHandler.postDelayed(clipDrawableRunnable,32); } }; V1
- 11. Uses Handler and Runnable Simplebut dangerous(memory leak, runsin UIthread, can generates frames drops) Not optimized V11 Animationis changingthe view/objectstate by droppingchanges inthe UI thread Handler clipDrawableHandler=new Handler(); Runnable clipDrawableRunnable=new Runnable() { @Override public void run() { myView.changeSomething(level); clipDrawableHandler.postDelayed(clipDrawableRunnable,32); } };
- 13. Don't be scared, it's simple. How doyougofrom the pointfromto the pointto? V1 t1t0 v0 v1 from to ? i(t)=v, where i(t0)=v0 and i(t1)=v1 float time
- 14. It can be straight V1 t1t0 v0 v1 from to linear
- 15. t1t0 v0 v1 Youcan use the system's ones V1 t1t0 v0 v1 from to deceleration acceleration to from t1t0 v0 v1 to bouncing from <set android:interpolator= "@android:anim/accelerate_interpolator"> <set android:interpolator= "@android:anim/decelerate_interpolator"> <set android:interpolator= "@android:anim/bounce_interpolator" >
- 16. Or buildyour own. V1 t1t0 v0 v1 from to alcoholic public class MyInterpolator implements Interpolator { float v; @Override public float getInterpolation(float input) { //v=i(input) return v; }...}
- 19. ClipDrawable RotateDrawable ScaleDrawable AnimationDrawable TransitionDrawable StateListDrawable AnimatedStateListDrawable AnimatedVectorDrawable Handler clipDrawableHandler=new Handler(); Runnable clipDrawableRunnable=new Runnable() { @Override public void run() {level++; clipDrawableHorizontal.setLevel(level); clipDrawableHandler.postDelayed(clipDrawableRunnable,32); } }; <?xml version="1.0" encoding="utf-8"?> <clip xmlns:android="http://schemas.android.com/apk/res/android" android:drawable="@drawable/ic_android2ee" android:clipOrientation="horizontal" android:gravity="left" /> V1
- 20. RotateDrawable rotateDrawableWheel; Handler rotateDrawableHandler=new Handler(); Runnable rotateDrawableRunnable=new Runnable() { public void run() {level++; rotateDrawableWheel.setLevel(level); rotateDrawableHandler.postDelayed(rotateDrawableRunnable,32); } }; <?xml version="1.0" encoding="utf-8"?> <rotate xmlns:android="http://schemas.android.com/apk/res/android" android:drawable="@drawable/ic_android2ee" android:fromDegrees="0" android:pivotX="50%" android:pivotY="50%" android:toDegrees="360" /> V1 ClipDrawable RotateDrawable ScaleDrawable AnimationDrawable TransitionDrawable StateListDrawable AnimatedStateListDrawable AnimatedVectorDrawable
- 21. ScaleDrawable scaleDrawable; Handler scaleDrawableHandler=new Handler(); Runnable scaleDrawableRunnable=new Runnable() { public void run() {level++; scaleDrawable.setLevel(level); scaleDrawableHandler.postDelayed(scaleeDrawableRunnable,32); } }; <?xml version="1.0" encoding="utf-8"?> <scale xmlns:android="http://schemas.android.com/apk/res/android" android:drawable="@mipmap/ic_edit" android:scaleGravity="center" android:scaleHeight="100%" android:scaleWidth="100%" /> V1 ClipDrawable RotateDrawable ScaleDrawable AnimationDrawable TransitionDrawable StateListDrawable AnimatedStateListDrawable AnimatedVectorDrawable
- 22. animationDrawable.start(); <animation-list android:id="@+id/selected" android:oneshot="false"> <item android:drawable="@drawable/attack_magic1" android:duration="100" /> <item android:drawable="@drawable/attack_magic2" android:duration="100" /> <item android:drawable="@drawable/attack_magic3" android:duration="100" /> <item android:drawable="@drawable/attack_magic4" android:duration="100" /> </animation-list> ClipDrawable RotateDrawable ScaleDrawable AnimationDrawable TransitionDrawable StateListDrawable AnimatedStateListDrawable AnimatedVectorDrawable V1
- 23. transitionDrawable.startTransition(3000); transitionDrawable.reverseTransition(3000); <?xml version="1.0" encoding="utf-8"?> <transition xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@mipmap/ic_ok" /> <item android:drawable="@mipmap/ic_nok" /> </transition> ClipDrawable RotateDrawable ScaleDrawable AnimationDrawable TransitionDrawable StateListDrawable AnimatedStateListDrawable AnimatedVectorDrawable V1
- 24. <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android" android:enterFadeDuration="300" android:exitFadeDuration="300"> <!--Sorry below v21 there is no animated selector you can just fade in and fade out--> <item android:id="@+id/item_pressed" android:state_pressed="true"> <bitmap android:src="@drawable/ic_android2ee"/></item> <item android:id="@+id/item_normal"> <bitmap android:src="@drawable/ic_nut"/> </item> </selector> fade fade Norma l Press ed Norma l View state Displ ay V 1 ClipDrawable RotateDrawable ScaleDrawable AnimationDrawable TransitionDrawable StateListDrawable AnimatedStateListDraw able AnimatedVectorDrawabl e
- 25. <?xml version="1.0" encoding="utf-8"?> <animated-selector > <item android:id="@+id/item_pressed" android:state_pressed="true"> <bitmap android:src="@drawable/ic_android2ee"/></item> <item android:id="@+id/item_normal"> <bitmap android:src="@drawable/ic_nut"/> </item> <transition android:fromId="@+id/item_pressed" android:toId="@+id/item_normal"> <animation-list android:id="@+id/selected" android:oneshot="true"> <item android:drawable="@drawable/attack_magic1" android:duration="100" /> <item android:drawable="@drawable/attack_magic2" android:duration="100" /> </animation-list></transition></animated-selector> V21 Normal Pressed NormalView state Display ClipDrawable RotateDrawable ScaleDrawable AnimationDrawable TransitionDrawable StateListDrawable AnimatedStateListDrawable AnimatedVectorDrawable
- 26. <?xml version="1.0" encoding="utf-8"?> <vector android:viewportWidth="500" android:viewportHeight="500" android:width="500px" android:height="500px"> <!--Make group to animate them separately using ObjectAnimator--> <!--Define the pivot in the group they will be used by ObjectAnimator--> <group android:name="tete" android:pivotX="250.0" android:pivotY="100.0"> <path android:name="head" android:fillColor="#9FBF3B" android:pathData="..." /> </group>...</vector> <?xml version="1.0" encoding="utf-8"?> <animated-vector android:drawable="@drawable/my_svg" > <target android:name="tete" android:animation="@anim/anim_svg" /> </animated-vector> <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/a ndroid"> <!-- res/anim/rotation.xml --> <objectAnimator android:duration="6000" android:propertyName="rotation" android:valueFrom="0" android:valueTo="360" /> </set> drawable/my_svg drawable/my_svg_animated anim/anim_svg use us e layout/my_view use <ImageView android:id="@+id/imvAnimatedVector" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:src="@drawable/my_svg_animated"/> animatedVectorDrawable.start(); V21 TransitionDrawable StateListDrawable AnimatedStateListDrawable AnimatedVectorDrawable
- 27. <?xml version="1.0" encoding="utf-8"?> <vector android:viewportWidth="500" android:viewportHeight="500" android:width="500px" android:height="500px"> <!--Make group to animate them separately using ObjectAnimator--> <!--Define the pivot in the group they will be used by ObjectAnimator--> <group android:name="tete" android:pivotX="250.0" android:pivotY="100.0"> <path android:name="head" android:fillColor="#9FBF3B" android:pathData="..." /> </group>...</vector> <?xml version="1.0" encoding="utf-8"?> <animated-vector android:drawable="@drawable/my_svg" > <target android:name="tete" android:animation="@anim/animpath_svg" /> </animated-vector> <?xml version="1.0" encoding="utf-8"?> <set > <!-- res/anim/rotation.xml --> <objectAnimator android:duration="6000" android:propertyName="pathData" android:valueFrom="M300,70 l 0,-70 70,70 0,0 - 70,70z" android:valueTo="M300,70 l 0,-70 70,0 0,140 - 70,0 z" android:valueType="pathType"/> </set> drawable/my_svg drawable/my_svg_animated anim/animpath_svg use us e layout/my_view use <ImageView android:id="@+id/imvAnimatedVector2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:src="@drawable/my_svg_animated"/> animatedVectorDrawable.start(); V21 TransitionDrawable StateListDrawable AnimatedStateListDrawable AnimatedVectorDrawable
- 28. The constraints that killfor path transformation: "Note thatthe paths must be compatiblefor morphing.In more details, the pathsshouldhave exact same lengthof commands , and exact same lengthof parameters for each commands." It means: youwon't use it expectfor so simple trick (arrow to hamburger). =>Waiting for tools ! V21
- 29. And here it is !!! https://github.com/bonnyfone/vectalign V21
- 30. To create Svg and/orsimplify them https://inkscape.org/ To convert Svg intoVectorDrawable http://inloop.github.io/svg2android/ A goodpractice : Define your path in aString file (resvaluesmy_path_string.xml) V21 But even with that it's the hell on earth =>working ona Github project
- 32. Make it simple and magic: Youcan animate any view translationX ,translationY, rotationX, rotationY, rotation, scaleX, scaleY, pivotX,pivotY, x,y,alphaand more with one lineof code! myView.animate().setDuration(300).x(20).rotationY(60).start(); V13
- 33. myView.animate().rotation(360); is equivalent to ObjectAnimator.ofFloat(myView, "rotation", 0f, 360f).start(); V13
- 34. Makes animations simple,magic and generic V13
- 35. First extends what youwant (Object or View or what ever) public class BlueDot extends View { V13
- 36. Define the propertyto animate usingset/*MyProperty*/ public class BlueDot extends View { /** * The property to animate * * @param parameter value of the state to calculate the animation of the object */ private void setToto(int parameter) { /*Do your stuff, (call invalidate to redraw view)*/ V13
- 37. Then animate public class BlueDot extends View { /** * The property to animate * @param parameter value of the state to calculate the animation of the object */ private void setToto(int parameter) {/*Do your stuff,(call invalidate to redraw view)*/ ObjectAnimator.ofInt(blueDot, "toto", 0, 110) .start(); V13
- 38. ClipDrawable Handler clipDrawableHandler=new Handler(); Runnable clipDrawableRunnable=new Runnable() { @Override public void run() {level++; clipDrawableHorizontal.setLevel(level); clipDrawableHandler.postDelayed(clipDrawableRunnable,32); } }; <?xml version="1.0" encoding="utf-8"?> <clip xmlns:android="http://schemas.android.com/apk/res/android" android:drawable="@drawable/ic_android2ee" android:clipOrientation="horizontal" android:gravity="left" /> It was before Works with every think ! V13
- 39. Works with every think ! public class MyActivity extends Activity{ private void setMoveDrawable(int level){ clipDrawableHorizontal.setLevel(level); } private void animateDrawable() { ObjectAnimator.ofInt(this, "MoveDrawable", 0, 10000).start(); } No moreHandler neither Runnable!!! yes thanks Chet ! V13
- 43. One xmllineto add <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/llSceneRoot" android:animateLayoutChanges="true" > One lineof codeto add if(postICS){ LayoutTransition transition = ((ViewGroup)findViewById(R.id.llSceneRoot)).getLayoutTransition(); // New capability as of Jellybean; monitor the container for *all* layout changes // (not just add/remove/visibility changes) and animate these changes as well.(==size) transition.enableTransitionType(LayoutTransition.CHANGING); } v16
- 44. v16v8
- 45. Youhave the choicebetween Custom animation Intent slidingActivity = new Intent(this, SlidingActivity.class); ActivityCompat.startActivity(this, slidingActivity, translationBundle);} v16v8 Bundle translationBundle = ActivityOptionsCompat.makeCustomAnimation(this, R.anim.anim_push_left_in_a2ee,R.anim.anim_push_left_out_a2ee).toBundle();
- 46. Youhave the choicebetween Custom animation Scaling Component Intent slidingActivity = new Intent(this, SlidingActivity.class); ActivityCompat.startActivity(this, slidingActivity, translationBundle);} v16v8 Bundle translationBundle = ActivityOptionsCompat.makeCustomAnimation(this, R.anim.anim_push_left_in_a2ee,R.anim.anim_push_left_out_a2ee).toBundle(); Bundle translationBundle = ActivityOptionsCompat.makeScaleUpAnimation(btnScaling,0,0,btnScaling.getWidth(), btnScaling.getHeight() ).toBundle();
- 47. Youhave the choicebetween: Custom animation ScalingComponent Scaling bitmap Intent slidingActivity = new Intent(this, SlidingActivity.class); ActivityCompat.startActivity(this, slidingActivity, translationBundle);} Bundle translationBundle = ActivityOptionsCompat.makeCustomAnimation(this, R.anim.anim_push_left_in_a2ee,R.anim.anim_push_left_out_a2ee).toBundle(); Bundle translationBundle = ActivityOptionsCompat.makeScaleUpAnimation(btnScaling,0,0,btnScaling.getWidth(), btnScaling.getHeight() ).toBundle(); Bundle translationBundle = ActivityOptionsCompat.makeThumbnailScaleUpAnimation(imvSmiley,bitmap,0,0) .toBundle(); v16v8
- 48. Youhave the choicebetween: Custom animation ScalingComponent Scaling bitmap You need to reverse : public class otherActivity extends Activity { public void finish() { super.finish(); //this work for all version superior to level 5 overridePendingTransition(R.anim.anim_push_right_in_a2ee, R.anim.anim_push_right_out_a2ee); }} v16v8
- 49. Awesome First manage your theme <resources> <!-- Thanks to :--> <!-- http://code.tutsplus.com/tutorials/introduction-to-the-new-lollipop-activity-transitions--cms-23711--> <!-- Base application theme. --> <style name="AppTheme" parent="BaseTheme"> <!-- Set the transition between activities effective --> <item name="android:windowContentTransitions">true</item> <item name="android:windowEnterTransition">@android:transition/slide_bottom</item> <item name="android:windowExitTransition">@android:transition/slide_bottom</item> <item name="android:windowAllowEnterTransitionOverlap">true</item> <item name="android:windowAllowReturnTransitionOverlap">true</item> <item name="android:windowSharedElementEnterTransition">@android:transition/move</item> <item name="android:windowSharedElementExitTransition">@android:transition/move</item> </style> </resources> v21
- 50. Set the android:transitionName to your components <ImageButton android:id="@+id/ibtnSprite" android:transitionName="@string/imvSprite_transition" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:layout_gravity="center" android:src="@drawable/attack_magic_animation" /> <ImageView android:id="@+id/imvSprite" android:transitionName="@string/imvSprite_transition" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:src="@drawable/attack_magic_animation" /> layout/main_activity layout/other_activity v21
- 51. Make your pairs and launch the new Activity if (isPostLollipop) { ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation( this, new Pair<View, String>(imvSprites, getString(R.string.imvSprite_transition)), ); } ActivityCompat.startActivity(MainActivity.this, intent, options.toBundle()); } v21
- 52. V7
- 53. 53 V7
- 54. 54 dependencies { ... compile 'com.android.support:recyclerview-v7:23.0.1' <!-- A RecyclerView with some commonly used attributes --> <android.support.v7.widget.RecyclerView android:id="@+id/my_recycler_view" android:scrollbars="vertical" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior" /> V7
- 56. 56 Its the natural evolution of the ListView, the ViewHolder is the one responsible of the view management public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View myView=inflater.inflate(R.layout.recyclerview,container,false); recyclerView= (RecyclerView) myView.findViewById(R.id.my_recycler_view); // use a layout manager recyclerViewLayoutManager = getLayoutManager(); recyclerView.setLayoutManager(recyclerViewLayoutManager); // specify an adapter (see also next example) recyclerViewAdapter = new RecyclerViewAdapter(humans,getActivity()); recyclerView.setAdapter(recyclerViewAdapter); return myView ; } find the View set the LayoutManager set the Adapter V7
- 57. 57 This is the same code as for the ListView (ViewHolder next slide) public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder>{ /****Attributes (t for temp)**/ private ArrayList<Human> humans; private LayoutInflater inflater; private View tNewView; private ViewHolder tViewHolder; private Human tHuman; /****** Constructor**/ public RecyclerViewAdapter(ArrayList<Human> dataSet,Context ctx){ humans=dataSet; inflater=LayoutInflater.from(ctx); } @Override public RecyclerViewAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { tNewView=inflater.inflate(R.layout.simple_item,parent,false); tViewHolder=new ViewHolder(tNewView); return tViewHolder; } @Override public void onBindViewHolder(RecyclerViewAdapter.ViewHolder holder, int position) { tHuman=humans.get(position); holder.getTxvName().setText(tHuman.getName()); holder.getTxvFirstName().setText(tHuman.getFirstName()); holder.getTxvMessage().setText(tHuman.getMessage()); } @Override public int getItemCount() { return humans.size(); } V7
- 58. 58 This is the same code as for the ListView (ViewHolder next slide) public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder>{ /****Attributes (t for temp)**/ private ArrayList<Human> humans; private LayoutInflater inflater; private View tNewView; private ViewHolder tViewHolder; private Human tHuman; /****** Constructor**/ public RecyclerViewAdapter(ArrayList<Human> dataSet,Context ctx){ humans=dataSet; inflater=LayoutInflater.from(ctx); } @Override public RecyclerViewAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { tNewView=inflater.inflate(R.layout.simple_item,parent,false); tViewHolder=new ViewHolder(tNewView); return tViewHolder; } @Override public void onBindViewHolder(RecyclerViewAdapter.ViewHolder holder, int position) { tHuman=humans.get(position); holder.getTxvName().setText(tHuman.getName()); holder.getTxvFirstName().setText(tHuman.getFirstName()); holder.getTxvMessage().setText(tHuman.getMessage()); } @Override public int getItemCount() { return humans.size(); } Inflate the view and its viewHolder Return the ViewHolder Update the View using the ViewHolder Set your DataSet and your LayoutInflater V7
- 59. 59 Le ViewHolder gère la vue qu'il encapsule public class ViewHolder extends RecyclerView.ViewHolder{ TextView txvName=null; TextView txvFirstName=null; TextView txvMessage=null; View.OnClickListener clickListener; int position; public ViewHolder(View itemView) { super(itemView); txvName= (TextView) itemView.findViewById(R.id.txvName); txvFirstName= (TextView) itemView.findViewById(R.id.txvFirstName); txvMessage= (TextView) itemView.findViewById(R.id.txvMessage); clickListener=new View.OnClickListener() { public void onClick(View v) {changeTxvMessageVisibilityState(); } }; itemView.setOnClickListener(clickListener); } public TextView getTxvFirstName() {return txvFirstName;} public TextView getTxvMessage() {return txvMessage;} public TextView getTxvName() {return txvName;} public void changeTxvMessageVisibilityState(){ //Do the stuff } } V7
- 60. 60 Le LinearLayoutManager public RecyclerView.LayoutManager getLayoutManager() { return new LinearLayoutManager(getContext()); } V7
- 61. 61 Le StaggeredLayoutManager public RecyclerView.LayoutManager getLayoutManager() { StaggeredGridLayoutManager stagLayoutManager=new StaggeredGridLayoutManager(2,GridLayoutManager.VERTICAL); stagLayoutManager.setGapStrategy(StaggeredGridLayoutManager.GAP_HANDLING_MOVE_ITEMS_BETWEEN_SPANS); return stagLayoutManager; } V7
- 62. 62 Le GridLayoutManager public RecyclerView.LayoutManager getLayoutManager() { GridLayoutManager gridLayoutManager=new GridLayoutManager(getContext(),2,GridLayoutManager.VERTICAL,false); //define specific span of specific cells according to a rule gridLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() { @Override public int getSpanSize(int arg0) { return (arg0 % 3) == 0 ? 2 : 1; } }); return gridLayoutManager; } V7
- 63. 63 V7
- 66. V7 66 <android.support.design.widget.CoordinatorLayout > <android.support.design.widget.AppBarLayout ... android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"> <android.support.v7.widget.Toolbar ... app:layout_scrollFlags="scroll|enterAlways"/> <android.support.design.widget.TabLayout ... android:fillViewport="true"/> </android.support.design.widget.AppBarLayout> <android.support.v4.view.ViewPager //Your content ... app:layout_behavior="@string/appbar_scrolling_view_behavior" /> </android.support.design.widget.CoordinatorLayout >
- 68. V7 68 <android.support.design.widget.AppBarLayout...> <android.support.design.widget.CollapsingToolbarLayout...> <ImageView.../> <android.support.design.widget.TabLayout .../> <android.support.v7.widget.Toolbar.../> </android.support.design.widget.CollapsingToolbarLayout> </android.support.design.widget.AppBarLayout> Set the title of the ActionBar on the CollapsingToolbarLayout not on the ToolBar!
- 70. V7 71 <android.support.design.widget.AppBarLayout ... > <android.support.design.widget.CollapsingToolbarLayout ... > <ImageView ... /> <android.support.v7.widget.Toolbar ... /> </android.support.design.widget.CollapsingToolbarLayout> <android.support.design.widget.TabLayout /> </android.support.design.widget.AppBarLayout> collapsingToolbar.setContentScrimResource(R.drawable.cardview_background_toolbar);
- 72. 73 V13
- 74. 75 activity_main.xml <?xml version="1.0" encoding="utf-8"?> <android.support.v4.view.ViewPager android:layout_width="fill_parent" android:layout_height="fill_parent" android:id="@+id/viewpager" android:background="#FF00F0F0"> </android.support.v4.view.ViewPager> public class MainActivity extends ActionBarActivity { private MyPagerAdapter pagerAdapter; private ViewPager viewPager; @Override protected void onCreate(Bundle savedInstanceState) { ... //instanciate the PageAdapter pagerAdapter=new MyPagerAdapter(this); //Find the viewPager viewPager = (ViewPager) super.findViewById(R.id.viewpager); // Affectation de l'adapter au ViewPager viewPager.setAdapter(pagerAdapter); } V13
- 75. 76 public class MyPagerAdapter extends FragmentPagerAdapter { private final ArrayList<Fragment> fragments; public MyPagerAdapter(ActionBarActivity ctx) { super(ctx.getSupportFragmentManager()); fragments = new ArrayList<Fragment>(); //A stuff I never did before, instanciate my fragment Fragment frag =new MyFragment1(); fragments.add(frag);... } public Fragment getItem(int position) { return fragments.get(position); } public int getCount() {return fragments.size(); } V13
- 76. 77 public class MainActivity extends ActionBarActivity { @Override protected void onCreate(Bundle savedInstanceState) { ... //instanciate the PageAdapter pagerAdapter=new MyPagerAdapter(this); //Find the viewPager viewPager = (ViewPager) super.findViewById(R.id.viewpager); // Affectation de l'adapter au ViewPager viewPager.setAdapter(pagerAdapter); if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.HONEYCOMB){ viewPager.setPageTransformer(true, new PageTransformer(this)); } V13
- 77. 78 public class MyPageTransformer implements ViewPager.PageTransformer{ RecyclerView myRecyclerView; public void transformPage(View view, float position) { //Only the main layout is passed here/ myRecyclerView= (RecyclerView) view.findViewById(R.id.my_recycler_view); if (position < -1) { // [-Infinity,-1)This page is way off-screen to the left. view.setAlpha(0); } else if (position < 1) { //in the visible range [-1,1] myRecyclerView.setAlpha(1-Math.abs(position)); view.setAlpha(1); if (position < 0) {//coming from left myRecyclerView.setRotationX((position * 360)); } else {//coming from right myRecyclerView.setRotationX(-1*position *360); } } else { // (1,+Infinity] // This page is way off-screen to the right. view.setAlpha(0); } }} V13
- 79. First: Simplifyyour layout !!! if not enoughyoucan also: User LayerType Hardware accelerated btnDoNotPress.setLayerType(View.LAYER_TYPE_HARDWARE,null); new Animator.AnimatorListener() { public void onAnimationEnd(Animator animation) { btnDoNotPress.setLayerType(View.LAYER_TYPE_NONE, null); } V1
- 80. Use Interface andFactory /** * The animation */ MainActivityAnimMother anim; //the factory for the animations (you can create a Class to do that if you want) : if(isPostLollipop){ anim=new MainActivityAnimLLP(); }else if(postICS){ anim=new MainActivityAnimICS(); }else{ anim=new MainActivityAnimGinger(); } V1 MainActivity MainActivity MainActivityAnimGinger MainActivityAnimICS MainActivityAnimLLP MainActivity MotherAnim MainActivityAnimIntf Animation code Animation attributes Animation methods declaration v21