32 |
33 |
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/app/src/main/java/com/tumblr/example/binder/HeaderBinder.java:
--------------------------------------------------------------------------------
1 | package com.tumblr.example.binder;
2 |
3 | import android.support.annotation.NonNull;
4 | import android.support.annotation.Nullable;
5 | import com.tumblr.example.R;
6 | import com.tumblr.example.model.Primitive;
7 | import com.tumblr.example.viewholder.HeaderViewHolder;
8 | import com.tumblr.example.viewholder.PrimitiveViewHolder;
9 | import com.tumblr.graywater.GraywaterAdapter;
10 |
11 | import javax.inject.Inject;
12 | import javax.inject.Provider;
13 | import java.util.List;
14 |
15 | /**
16 | * Created by ericleong on 3/13/16.
17 | */
18 | public class HeaderBinder implements GraywaterAdapter.Binder {
19 |
20 | @Inject
21 | public HeaderBinder() {
22 |
23 | }
24 |
25 | @Override
26 | public int getViewType(final Primitive.Header model) {
27 | return R.layout.item_header;
28 | }
29 |
30 | @Override
31 | public void prepare(@NonNull final Primitive.Header model,
32 | final List>> binderList,
34 | final int binderIndex) {
35 |
36 | }
37 |
38 | @Override
39 | public void bind(@NonNull final Primitive.Header model,
40 | @NonNull final HeaderViewHolder holder,
41 | @NonNull final List>> binderList,
43 | final int binderIndex,
44 | @Nullable final GraywaterAdapter.ActionListener<
45 | Primitive.Header, PrimitiveViewHolder, HeaderViewHolder> actionListener) {
46 |
47 | }
48 |
49 | @Override
50 | public void unbind(@NonNull final HeaderViewHolder holder) {
51 |
52 | }
53 | }
54 |
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/app/src/main/java/com/tumblr/example/binder/TextPrimitiveBinder.java:
--------------------------------------------------------------------------------
1 | package com.tumblr.example.binder;
2 |
3 | import android.support.annotation.NonNull;
4 | import android.support.annotation.Nullable;
5 | import com.tumblr.example.R;
6 | import com.tumblr.example.model.Primitive;
7 | import com.tumblr.example.viewholder.PrimitiveViewHolder;
8 | import com.tumblr.example.viewholder.TextPrimitiveViewHolder;
9 | import com.tumblr.graywater.GraywaterAdapter;
10 |
11 | import javax.inject.Inject;
12 | import javax.inject.Provider;
13 | import java.util.List;
14 |
15 | /**
16 | * Created by ericleong on 3/13/16.
17 | */
18 | public class TextPrimitiveBinder
19 | implements GraywaterAdapter.Binder {
20 |
21 | @Inject
22 | public TextPrimitiveBinder() {
23 |
24 | }
25 |
26 | @Override
27 | public int getViewType(final T model) {
28 | return R.layout.item_text;
29 | }
30 |
31 | @Override
32 | public void prepare(@NonNull final T model,
33 | final List>> binderList,
35 | final int binderIndex) {
36 |
37 | }
38 |
39 | @Override
40 | public void bind(@NonNull final T model,
41 | @NonNull final TextPrimitiveViewHolder holder,
42 | @NonNull final List>> binderList,
44 | final int binderIndex,
45 | @Nullable final GraywaterAdapter.ActionListener actionListener) {
46 | holder.getTextView().setText(model.getString());
47 | }
48 |
49 | @Override
50 | public void unbind(@NonNull final TextPrimitiveViewHolder holder) {
51 |
52 | }
53 | }
54 |
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/app/src/main/java/com/tumblr/example/dagger/module/ItemBinderModule.java:
--------------------------------------------------------------------------------
1 | package com.tumblr.example.dagger.module;
2 |
3 | import com.tumblr.example.binderlist.ColorNamePrimitiveItemBinder;
4 | import com.tumblr.example.binderlist.HeaderPrimitiveItemBinder;
5 | import com.tumblr.example.binderlist.PaletteItemBinder;
6 | import com.tumblr.example.dagger.PerActivity;
7 | import com.tumblr.example.dagger.key.PrimitiveItemBinderKey;
8 | import com.tumblr.example.model.ColorNamePrimitive;
9 | import com.tumblr.example.model.Palette;
10 | import com.tumblr.example.model.Primitive;
11 | import com.tumblr.example.viewholder.PrimitiveViewHolder;
12 | import com.tumblr.graywater.GraywaterAdapter;
13 | import dagger.Binds;
14 | import dagger.Module;
15 | import dagger.multibindings.IntoMap;
16 |
17 | /**
18 | * Created by ericleong on 12/6/17.
19 | */
20 | @Module
21 | public abstract class ItemBinderModule {
22 | @PerActivity
23 | @Binds
24 | @IntoMap
25 | @PrimitiveItemBinderKey(ColorNamePrimitive.class)
26 | abstract GraywaterAdapter.ItemBinder<
27 | ? extends Primitive,
28 | ? extends PrimitiveViewHolder,
29 | ? extends GraywaterAdapter.Binder extends Primitive, PrimitiveViewHolder, ? extends PrimitiveViewHolder>>
30 | bindsColorNamePrimitiveItemBinder(ColorNamePrimitiveItemBinder colorNamePrimitiveItemBinder);
31 |
32 | @PerActivity
33 | @Binds
34 | @IntoMap
35 | @PrimitiveItemBinderKey(Primitive.Header.class)
36 | abstract GraywaterAdapter.ItemBinder<
37 | ? extends Primitive,
38 | ? extends PrimitiveViewHolder,
39 | ? extends GraywaterAdapter.Binder extends Primitive, PrimitiveViewHolder, ? extends PrimitiveViewHolder>>
40 | bindsHeaderPrimitiveItemBinder(HeaderPrimitiveItemBinder headerPrimitiveItemBinder);
41 |
42 | @PerActivity
43 | @Binds
44 | @IntoMap
45 | @PrimitiveItemBinderKey(Palette.class)
46 | abstract GraywaterAdapter.ItemBinder<
47 | ? extends Primitive,
48 | ? extends PrimitiveViewHolder,
49 | ? extends GraywaterAdapter.Binder extends Primitive, PrimitiveViewHolder, ? extends PrimitiveViewHolder>>
50 | bindsPaletteItemBinder(PaletteItemBinder paletteItemBinder);
51 | }
52 |
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/app/src/main/java/com/tumblr/example/binder/ColorNameToastBinder.java:
--------------------------------------------------------------------------------
1 | package com.tumblr.example.binder;
2 |
3 | import android.support.annotation.NonNull;
4 | import android.support.annotation.Nullable;
5 | import com.tumblr.example.R;
6 | import com.tumblr.example.model.ColorNamePrimitive;
7 | import com.tumblr.example.viewholder.ColorPrimitiveViewHolder;
8 | import com.tumblr.example.viewholder.PrimitiveViewHolder;
9 | import com.tumblr.graywater.GraywaterAdapter;
10 |
11 | import javax.inject.Inject;
12 | import javax.inject.Provider;
13 | import java.util.List;
14 |
15 | /**
16 | * Created by ericleong on 3/24/16.
17 | */
18 | public class ColorNameToastBinder implements GraywaterAdapter.Binder {
19 |
20 | @Inject
21 | public ColorNameToastBinder() {
22 |
23 | }
24 |
25 | @Override
26 | public int getViewType(final ColorNamePrimitive model) {
27 | return R.layout.item_color;
28 | }
29 |
30 | @Override
31 | public void prepare(@NonNull final ColorNamePrimitive model,
32 | final List>> binderList,
34 | final int binderIndex) {
35 |
36 | }
37 |
38 | @Override
39 | public void bind(@NonNull final ColorNamePrimitive model,
40 | @NonNull final ColorPrimitiveViewHolder holder,
41 | @NonNull final List>> binderList,
43 | final int binderIndex,
44 | @Nullable final GraywaterAdapter.ActionListener<
45 | ColorNamePrimitive, PrimitiveViewHolder, ColorPrimitiveViewHolder> actionListener) {
46 | holder.getView().setBackgroundColor(holder.getView().getResources().getColor(model.getColor()));
47 | holder.getActionListenerDelegate().update(actionListener, model, holder, binderList, binderIndex, null);
48 | holder.getView().setOnClickListener(holder.getActionListenerDelegate());
49 | }
50 |
51 | @Override
52 | public void unbind(@NonNull final ColorPrimitiveViewHolder holder) {
53 | holder.getView().setOnClickListener(null);
54 | }
55 | }
56 |
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/app/src/main/java/com/tumblr/example/binderlist/PaletteItemBinder.java:
--------------------------------------------------------------------------------
1 | package com.tumblr.example.binderlist;
2 |
3 | import android.support.annotation.NonNull;
4 | import android.support.annotation.Nullable;
5 | import android.view.View;
6 | import com.tumblr.example.binder.PaletteColorBinder;
7 | import com.tumblr.example.binder.TextPrimitiveBinder;
8 | import com.tumblr.example.dagger.PerActivity;
9 | import com.tumblr.example.model.Palette;
10 | import com.tumblr.example.viewholder.PrimitiveViewHolder;
11 | import com.tumblr.graywater.GraywaterAdapter;
12 |
13 | import javax.inject.Inject;
14 | import javax.inject.Provider;
15 | import java.util.ArrayList;
16 | import java.util.List;
17 |
18 | /**
19 | * Created by ericleong on 3/28/16.
20 | */
21 | @PerActivity
22 | public class PaletteItemBinder implements GraywaterAdapter.ItemBinder>,
24 | GraywaterAdapter.ActionListener {
25 | private final Provider> mPaletteTextPrimitiveBinder;
26 | private final Provider mPaletteColorBinder;
27 |
28 | @Inject
29 | public PaletteItemBinder(final Provider> paletteTextPrimitiveBinder,
30 | final Provider paletteColorBinder) {
31 | mPaletteTextPrimitiveBinder = paletteTextPrimitiveBinder;
32 | mPaletteColorBinder = paletteColorBinder;
33 | }
34 |
35 | @NonNull
36 | @Override
37 | public List>>
38 | getBinderList(@NonNull final Palette model, final int position) {
39 | return new ArrayList>>() {{
40 | add(mPaletteTextPrimitiveBinder);
41 |
42 | for (int color : model.getColors()) {
43 | add(mPaletteColorBinder);
44 | }
45 | }};
46 | }
47 |
48 | @Override
49 | public void act(@NonNull final Palette model,
50 | @NonNull final PrimitiveViewHolder holder,
51 | @NonNull final View v,
52 | @NonNull final List>> binderList,
54 | final int binderIndex,
55 | @Nullable final Object obj) {
56 |
57 | }
58 | }
59 |
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/app/src/main/java/com/tumblr/example/binder/PaletteColorBinder.java:
--------------------------------------------------------------------------------
1 | package com.tumblr.example.binder;
2 |
3 | import android.support.annotation.NonNull;
4 | import android.support.annotation.Nullable;
5 | import android.view.View;
6 | import android.widget.Toast;
7 | import com.tumblr.example.R;
8 | import com.tumblr.example.model.Palette;
9 | import com.tumblr.example.viewholder.ColorPrimitiveViewHolder;
10 | import com.tumblr.example.viewholder.PrimitiveViewHolder;
11 | import com.tumblr.graywater.GraywaterAdapter;
12 |
13 | import javax.inject.Inject;
14 | import javax.inject.Provider;
15 | import java.util.List;
16 |
17 | /**
18 | * Created by ericleong on 3/13/16.
19 | */
20 | public class PaletteColorBinder implements GraywaterAdapter.Binder {
21 |
22 | @Inject
23 | public PaletteColorBinder() {
24 |
25 | }
26 |
27 | @Override
28 | public int getViewType(final Palette model) {
29 | return R.layout.item_color;
30 | }
31 |
32 | @Override
33 | public void prepare(@NonNull final Palette model,
34 | final List>> binderList,
36 | final int binderIndex) {
37 |
38 | }
39 |
40 | @Override
41 | public void bind(@NonNull final Palette model,
42 | @NonNull final ColorPrimitiveViewHolder holder,
43 | @NonNull final List>> binderList,
45 | final int binderIndex,
46 | @Nullable final GraywaterAdapter.ActionListener<
47 | Palette, PrimitiveViewHolder, ColorPrimitiveViewHolder> actionListener) {
48 | holder.getView().setBackgroundColor(holder.getView().getResources().getColor(model.getColors().get
49 | (binderIndex - 1)));
50 |
51 | holder.getView().setOnClickListener(new View.OnClickListener() {
52 | @Override
53 | public void onClick(final View v) {
54 | PaletteColorBinder.this.onClick(v, model, holder);
55 | }
56 | });
57 | }
58 |
59 | @Override
60 | public void unbind(@NonNull final ColorPrimitiveViewHolder holder) {
61 | holder.getView().setOnClickListener(null);
62 | }
63 |
64 | public void onClick(final View v, final Palette model, final ColorPrimitiveViewHolder holder) {
65 | Toast.makeText(v.getContext(), model.getString(), Toast.LENGTH_SHORT).show();
66 | }
67 | }
68 |
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/gradlew.bat:
--------------------------------------------------------------------------------
1 | @if "%DEBUG%" == "" @echo off
2 | @rem ##########################################################################
3 | @rem
4 | @rem Gradle startup script for Windows
5 | @rem
6 | @rem ##########################################################################
7 |
8 | @rem Set local scope for the variables with windows NT shell
9 | if "%OS%"=="Windows_NT" setlocal
10 |
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 |
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 |
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 |
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 |
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 |
32 | goto fail
33 |
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 |
38 | if exist "%JAVA_EXE%" goto init
39 |
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 |
46 | goto fail
47 |
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 |
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 |
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 |
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 |
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 |
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 |
69 | :execute
70 | @rem Setup the command line
71 |
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 |
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 |
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 |
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 |
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 |
90 | :omega
91 |
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/app/src/main/java/com/tumblr/example/binderlist/ColorNamePrimitiveItemBinder.java:
--------------------------------------------------------------------------------
1 | package com.tumblr.example.binderlist;
2 |
3 | import android.support.annotation.NonNull;
4 | import android.support.annotation.Nullable;
5 | import android.view.View;
6 | import android.widget.Toast;
7 | import com.tumblr.example.PrimitiveAdapter;
8 | import com.tumblr.example.binder.ColorNameToastBinder;
9 | import com.tumblr.example.binder.TextPrimitiveBinder;
10 | import com.tumblr.example.dagger.PerActivity;
11 | import com.tumblr.example.model.ColorNamePrimitive;
12 | import com.tumblr.example.viewholder.PrimitiveViewHolder;
13 | import com.tumblr.graywater.GraywaterAdapter;
14 |
15 | import javax.inject.Inject;
16 | import javax.inject.Provider;
17 | import java.util.ArrayList;
18 | import java.util.List;
19 |
20 | /**
21 | * Created by ericleong on 3/28/16.
22 | */
23 | @PerActivity
24 | public class ColorNamePrimitiveItemBinder
25 | implements GraywaterAdapter.ItemBinder>,
27 | GraywaterAdapter.ActionListener {
28 |
29 | private final Provider> mColorNameTextBinder;
30 | private final Provider mColorNameToastBinder;
31 |
32 | private final Provider mAdapter;
33 |
34 | @Inject
35 | public ColorNamePrimitiveItemBinder(final Provider adapter,
36 | final Provider> colorNameTextBinder,
37 | final Provider colorNameToastBinder) {
38 | mColorNameTextBinder = colorNameTextBinder;
39 | mColorNameToastBinder = colorNameToastBinder;
40 | mAdapter = adapter;
41 | }
42 |
43 | @NonNull
44 | @Override
45 | public List>>
46 | getBinderList(@NonNull final ColorNamePrimitive model, final int position) {
47 | return new ArrayList>>() {{
49 | add(mColorNameTextBinder);
50 | add(mColorNameToastBinder);
51 | }};
52 | }
53 |
54 | @Override
55 | public void act(@NonNull final ColorNamePrimitive model,
56 | @NonNull final PrimitiveViewHolder holder,
57 | @NonNull final View v,
58 | @NonNull final List>> binderList,
60 | final int binderIndex,
61 | @Nullable final Object obj) {
62 | Toast.makeText(v.getContext(), model.getString(), Toast.LENGTH_SHORT).show();
63 |
64 | final PrimitiveAdapter adapter = mAdapter.get();
65 |
66 | adapter.add(adapter.getItemPosition(holder.getAdapterPosition()) + 1,
67 | new ColorNamePrimitive(model.getColor(), model.getString() + "+"), true);
68 | }
69 | }
70 |
--------------------------------------------------------------------------------
/app/src/main/java/com/tumblr/example/PrimitiveAdapter.java:
--------------------------------------------------------------------------------
1 | package com.tumblr.example;
2 |
3 | import android.support.annotation.NonNull;
4 | import android.support.annotation.Nullable;
5 | import com.tumblr.example.dagger.PerActivity;
6 | import com.tumblr.example.model.Primitive;
7 | import com.tumblr.example.viewholder.PrimitiveViewHolder;
8 | import com.tumblr.graywater.GraywaterAdapter;
9 |
10 | import javax.inject.Inject;
11 | import javax.inject.Provider;
12 | import java.util.Map;
13 |
14 | /**
15 | * Example adapter.
16 | *
17 | * Created by ericleong on 3/13/16.
18 | */
19 | @PerActivity
20 | public class PrimitiveAdapter extends GraywaterAdapter<
21 | Primitive,
22 | PrimitiveViewHolder,
23 | GraywaterAdapter.Binder extends Primitive, PrimitiveViewHolder, ? extends PrimitiveViewHolder>,
24 | Class extends Primitive>> {
25 |
26 | @NonNull
27 | private final Map,
28 | Provider>>> mItemBinderMap;
32 |
33 | @NonNull
34 | private final Map,
35 | Provider>> mActionListenerMap;
38 |
39 | @Inject
40 | public PrimitiveAdapter(final Map, ViewHolderCreator> viewHolderCreatorMapClass,
41 | @NonNull final Map,
42 | Provider>>>
46 | itemBinderMap,
47 | @NonNull final Map,
48 | Provider>> actionListenerMap) {
52 |
53 | for (Map.Entry, ViewHolderCreator> entry : viewHolderCreatorMapClass.entrySet()) {
54 | register(entry.getValue(), entry.getKey());
55 | }
56 |
57 | mItemBinderMap = itemBinderMap;
58 | mActionListenerMap = actionListenerMap;
59 | }
60 |
61 | @Nullable
62 | @Override
63 | protected ItemBinder extends Primitive,
64 | ? extends PrimitiveViewHolder,
65 | ? extends Binder extends Primitive, PrimitiveViewHolder, ? extends PrimitiveViewHolder>>
66 | getItemBinder(final Primitive model) {
67 | final Class extends Primitive> modelType = getModelType(model);
68 |
69 | return mItemBinderMap.get(modelType).get();
70 | }
71 |
72 | @Nullable
73 | @Override
74 | protected ActionListener extends Primitive, PrimitiveViewHolder, ? extends PrimitiveViewHolder>
75 | getActionListener(final Primitive model) {
76 | final Class extends Primitive> modelType = getModelType(model);
77 | final Provider>
78 | provider = mActionListenerMap.get(modelType);
79 |
80 | return provider != null ? provider.get() : null;
81 | }
82 |
83 | @NonNull
84 | @Override
85 | protected Class extends Primitive> getModelType(final Primitive model) {
86 | return model.getClass();
87 | }
88 | }
89 |
--------------------------------------------------------------------------------
/app/src/main/java/com/tumblr/example/MainActivity.java:
--------------------------------------------------------------------------------
1 | package com.tumblr.example;
2 |
3 | import android.os.Bundle;
4 | import android.support.v7.widget.DefaultItemAnimator;
5 | import android.support.v7.widget.LinearLayoutManager;
6 | import android.support.v7.widget.RecyclerView;
7 | import com.tumblr.example.model.ColorNamePrimitive;
8 | import com.tumblr.example.model.Palette;
9 | import com.tumblr.example.model.Primitive;
10 | import dagger.android.support.DaggerAppCompatActivity;
11 |
12 | import javax.inject.Inject;
13 |
14 | public class MainActivity extends DaggerAppCompatActivity {
15 |
16 | @Inject
17 | PrimitiveAdapter mPrimitiveAdapter;
18 |
19 | @Override
20 | protected void onCreate(Bundle savedInstanceState) {
21 | super.onCreate(savedInstanceState);
22 | setContentView(R.layout.activity_main);
23 |
24 | final RecyclerView recyclerView = (RecyclerView) findViewById(R.id.list);
25 |
26 | if (recyclerView != null) {
27 | recyclerView.setLayoutManager(new LinearLayoutManager(this));
28 | recyclerView.setItemAnimator(new DefaultItemAnimator());
29 |
30 | // A header has nothing special
31 | mPrimitiveAdapter.add(new Primitive.Header());
32 |
33 | // Reds
34 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.red_base_variant_0, "dark red"));
35 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.red_base_variant_1, "red"));
36 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.red_base_variant_2, "bright red"));
37 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.red_base_variant_3, "shy red"));
38 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.red_base_variant_4, "embarrassed red"));
39 | mPrimitiveAdapter.add(new Palette("Red Palette", R.color.red_base_variant_0, R.color.red_base_variant_2, R.color.red_base_variant_4));
40 |
41 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.yellow_base_variant_0, "dark yellow"));
42 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.yellow_base_variant_1, "yellow"));
43 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.yellow_base_variant_2, "bright yellow"));
44 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.yellow_base_variant_3, "shy yellow"));
45 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.yellow_base_variant_4, "embarrassed yellow"));
46 | mPrimitiveAdapter.add(new Palette("Yellow Palette",
47 | R.color.yellow_base_variant_0, R.color.yellow_base_variant_2, R.color.yellow_base_variant_4));
48 |
49 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.green_base_variant_0, "dark green"));
50 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.green_base_variant_1, "green"));
51 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.green_base_variant_2, "bright green"));
52 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.green_base_variant_3, "shy green"));
53 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.green_base_variant_4, "embarrassed green"));
54 | mPrimitiveAdapter.add(new Palette("Green Palette",
55 | R.color.green_base_variant_0, R.color.green_base_variant_2, R.color.green_base_variant_4));
56 |
57 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.blue_base_variant_0, "dark blue"));
58 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.blue_base_variant_1, "blue"));
59 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.blue_base_variant_2, "bright blue"));
60 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.blue_base_variant_3, "shy blue"));
61 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.blue_base_variant_4, "embarrassed blue"));
62 | mPrimitiveAdapter.add(new Palette("Blue Palette",
63 | R.color.blue_base_variant_0, R.color.blue_base_variant_2, R.color.blue_base_variant_4));
64 |
65 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.purple_base_variant_0, "dark purple"));
66 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.purple_base_variant_1, "purple"));
67 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.purple_base_variant_2, "bright purple"));
68 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.purple_base_variant_3, "shy purple"));
69 | mPrimitiveAdapter.add(new ColorNamePrimitive(R.color.purple_base_variant_4, "embarrassed purple"));
70 | mPrimitiveAdapter.add(new Palette("Purple Palette",
71 | R.color.purple_base_variant_0, R.color.purple_base_variant_2, R.color.purple_base_variant_4));
72 |
73 | mPrimitiveAdapter.add(new Palette("Rainbow",
74 | R.color.red_base_variant_0, R.color.yellow_base_variant_0, R.color.green_base_variant_0,
75 | R.color.blue_base_variant_0, R.color.purple_base_variant_0));
76 |
77 | mPrimitiveAdapter.add(new Palette("Strange Rainbow",
78 | R.color.red_base_variant_0, R.color.yellow_base_variant_1, R.color.green_base_variant_2,
79 | R.color.blue_base_variant_3, R.color.purple_base_variant_4));
80 |
81 | recyclerView.setAdapter(mPrimitiveAdapter);
82 | }
83 | }
84 | }
85 |
--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env bash
2 |
3 | ##############################################################################
4 | ##
5 | ## Gradle start up script for UN*X
6 | ##
7 | ##############################################################################
8 |
9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
10 | DEFAULT_JVM_OPTS=""
11 |
12 | APP_NAME="Gradle"
13 | APP_BASE_NAME=`basename "$0"`
14 |
15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
16 | MAX_FD="maximum"
17 |
18 | warn ( ) {
19 | echo "$*"
20 | }
21 |
22 | die ( ) {
23 | echo
24 | echo "$*"
25 | echo
26 | exit 1
27 | }
28 |
29 | # OS specific support (must be 'true' or 'false').
30 | cygwin=false
31 | msys=false
32 | darwin=false
33 | case "`uname`" in
34 | CYGWIN* )
35 | cygwin=true
36 | ;;
37 | Darwin* )
38 | darwin=true
39 | ;;
40 | MINGW* )
41 | msys=true
42 | ;;
43 | esac
44 |
45 | # Attempt to set APP_HOME
46 | # Resolve links: $0 may be a link
47 | PRG="$0"
48 | # Need this for relative symlinks.
49 | while [ -h "$PRG" ] ; do
50 | ls=`ls -ld "$PRG"`
51 | link=`expr "$ls" : '.*-> \(.*\)$'`
52 | if expr "$link" : '/.*' > /dev/null; then
53 | PRG="$link"
54 | else
55 | PRG=`dirname "$PRG"`"/$link"
56 | fi
57 | done
58 | SAVED="`pwd`"
59 | cd "`dirname \"$PRG\"`/" >/dev/null
60 | APP_HOME="`pwd -P`"
61 | cd "$SAVED" >/dev/null
62 |
63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
64 |
65 | # Determine the Java command to use to start the JVM.
66 | if [ -n "$JAVA_HOME" ] ; then
67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
68 | # IBM's JDK on AIX uses strange locations for the executables
69 | JAVACMD="$JAVA_HOME/jre/sh/java"
70 | else
71 | JAVACMD="$JAVA_HOME/bin/java"
72 | fi
73 | if [ ! -x "$JAVACMD" ] ; then
74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
75 |
76 | Please set the JAVA_HOME variable in your environment to match the
77 | location of your Java installation."
78 | fi
79 | else
80 | JAVACMD="java"
81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
82 |
83 | Please set the JAVA_HOME variable in your environment to match the
84 | location of your Java installation."
85 | fi
86 |
87 | # Increase the maximum file descriptors if we can.
88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
89 | MAX_FD_LIMIT=`ulimit -H -n`
90 | if [ $? -eq 0 ] ; then
91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
92 | MAX_FD="$MAX_FD_LIMIT"
93 | fi
94 | ulimit -n $MAX_FD
95 | if [ $? -ne 0 ] ; then
96 | warn "Could not set maximum file descriptor limit: $MAX_FD"
97 | fi
98 | else
99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
100 | fi
101 | fi
102 |
103 | # For Darwin, add options to specify how the application appears in the dock
104 | if $darwin; then
105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
106 | fi
107 |
108 | # For Cygwin, switch paths to Windows format before running java
109 | if $cygwin ; then
110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
112 | JAVACMD=`cygpath --unix "$JAVACMD"`
113 |
114 | # We build the pattern for arguments to be converted via cygpath
115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
116 | SEP=""
117 | for dir in $ROOTDIRSRAW ; do
118 | ROOTDIRS="$ROOTDIRS$SEP$dir"
119 | SEP="|"
120 | done
121 | OURCYGPATTERN="(^($ROOTDIRS))"
122 | # Add a user-defined pattern to the cygpath arguments
123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
125 | fi
126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
127 | i=0
128 | for arg in "$@" ; do
129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
131 |
132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
134 | else
135 | eval `echo args$i`="\"$arg\""
136 | fi
137 | i=$((i+1))
138 | done
139 | case $i in
140 | (0) set -- ;;
141 | (1) set -- "$args0" ;;
142 | (2) set -- "$args0" "$args1" ;;
143 | (3) set -- "$args0" "$args1" "$args2" ;;
144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
150 | esac
151 | fi
152 |
153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
154 | function splitJvmOpts() {
155 | JVM_OPTS=("$@")
156 | }
157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
159 |
160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
161 |
--------------------------------------------------------------------------------
/graywater/checkstyle.xml:
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--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
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/README.md:
--------------------------------------------------------------------------------
1 | # Graywater: an android library for performant lists
2 |
3 | Graywater is a [`RecyclerView`](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.html) adapter that facilitates the performant decomposition of complex and varied list items. It does this by mapping large data models to multiple viewholders, splitting the work needed to create a complex list item over multiple frames.
4 |
5 | The concept is based off of [Facebook's post on a faster news feed](https://code.facebook.com/posts/879498888759525/fast-rendering-news-feed-on-android/) and [Components for Android](https://code.facebook.com/posts/531104390396423/components-for-android-a-declarative-framework-for-efficient-uis/), which have been realized as [Litho](http://fblitho.com).
6 |
7 | Tumblr developed Graywater to improve scroll performance, reduce memory usage, and lay the foundation for a more modular codebase.
8 |
9 | The name "Graywater" comes from [the process of recycling water](https://en.wikipedia.org/wiki/Greywater).
10 |
11 | * [What is it?](#what-is-it)
12 | * [How do you use it?](#how-do-you-use-it)
13 | * [How does it work?](#how-does-it-work)
14 | * [Other features](#other-features)
15 | * [An addendum on binders and generics](#an-addendum-on-binders-and-generics)
16 |
17 | ## What is it?
18 |
19 | An adapter basically takes a list of models (of type `T`) and maps them to a list of viewholders (of type `VH extends RecyclerView.ViewHolder`).
20 |
21 | One naive solution is to map models directly to viewholders. For example, a list of "posts" can have a viewholder for each post. But this architecture quickly becomes slow and unwieldy if there is either a large variety of posts or if individual posts are complex.
22 |
23 | So to improve performance, the parts of a post that are offscreen can be recycled.
24 |
25 | ```
26 | model views
27 | +---------+ +------+
28 | | | | head | <------- does not exist
29 | | | +------+ <------------+
30 | | item #1 | | body | <---+ |
31 | | | +------+ | |
32 | | | | foot | | |
33 | +---------+ +------+ | |
34 | screen view hierarchy
35 | +---------+ +------+ | |
36 | | | | head | | |
37 | | | +------+ | |
38 | | item #2 | | body | <---+ |
39 | | | +------+ <------------+
40 | | | | body | <------- does not exist
41 | +---------+ +------+
42 | ```
43 |
44 | Due to Tumblr's needs, there are additional features that help improve performance and reduce memory usage:
45 |
46 | * Viewholders are shared between models of the same and different types, _e.g. a body viewholder can be shared between a item #1 and item #2_.
47 | * Models can have multiple viewholders of the same type, _e.g. an item can have an unlimited number of body viewholders_.
48 |
49 | This results in a minimal number of viewholders to maximize cache effectiveness and reduce memory pressure.
50 |
51 | In order to accomplish this, we introduce the concept of a **Binder**, which takes a model (`T`) and binds it to a viewholder (`VH`).
52 |
53 | ```
54 | +-------+ +--------+ +------------+
55 | | Model | --> | Binder | --> | ViewHolder |
56 | +-------+ +--------+ +------------+
57 | ```
58 |
59 | We no longer desire the one-to-one relationship between models and viewholders that, because monolithic models result in monolithic viewholders. For example, a video post (`VideoPost`) used to have a corresponding `VideoPostViewHolder`. Instead, we want `VideoPost` to be composed of a header, body, and footer.
60 |
61 | ```
62 | +--------+ +------------+
63 | /--> | Binder | --> | ViewHolder |
64 | +-------+ +---+ / +--------+ +------------+
65 | | Model | --> | ? | *----> | Binder | --> | ViewHolder |
66 | +-------+ +---+ \ +--------+ +------------+
67 | \--> | Binder | --> | ViewHolder |
68 | +--------+ +------------+
69 | ```
70 |
71 | To manage this relationship, we introduce the concept of an **ItemBinder**, which aggregates the binders needed to display a post. It takes a model (`T`) and returns a list of binders, each of which bind the model to a specific viewholder.
72 |
73 | ```
74 | +------------+
75 | /-----> | ItemBinder |
76 | / +------------+
77 | / v
78 | / +--------+ +------------+
79 | / /----> | Binder | --> | ViewHolder |
80 | +-------+ / +--------+ +------------+
81 | | Model | *------> | Binder | --> | ViewHolder |
82 | +-------+ \ +--------+ +------------+
83 | \----> | Binder | --> | ViewHolder |
84 | +--------+ +------------+
85 | ```
86 |
87 | * `ItemBinder extends T, ? extends VH>` takes a model `T` and maps it to a list of binders of type `Binder`.
88 | * `Binder super T, ? extends VH>` takes a model of type `T` and maps it to a `ViewHolder` of type `VH`
89 |
90 | A minor design point is that `RecyclerView.Adapter#onCreate()` creates the viewholders, so some sort of mechanism for creating viewholders is necessary. This is where **ViewHolderCreator** comes in - it is a model-independent way of creating viewholders (in other libraries with a one-to-one relationship between models and viewholders, this code would live in the model - e.g. [Epoxy](https://github.com/airbnb/epoxy#epoxy-models)).
91 |
92 | ```
93 | +------------+
94 | /-----> | ItemBinder |
95 | / +------------+
96 | / v
97 | / +--------+ +------------+ +-------------------+
98 | / /----> | Binder | --> | ViewHolder | <-- | ViewHolderCreator |
99 | +-------+ / +--------+ +------------+ +-------------------+
100 | | Model | *------> | Binder | --> | ViewHolder | <-- | ViewHolderCreator |
101 | +-------+ \ +--------+ +------------+ +-------------------+
102 | \----> | Binder | --> | ViewHolder | <-- | ViewHolderCreator |
103 | +--------+ +------------+ +-------------------+
104 | ```
105 |
106 | ### Dependency Injection with Dagger 2 Map Multibindings
107 |
108 | For Graywater to know about the ItemBinders and ViewHolderCreators, each of them needs to be registered when the adapter is created. When there are a substantial number of both, there can be a significant impact on the time it takes to initialize the adapter.
109 |
110 | One solution is to use [Dagger 2 map multibindings](https://google.github.io/dagger/multibindings#map-multibindings). This allows you to use the full power of dependency injection to control which binders a given screen will support, as well as the ability to inject different versions of the same binder on different screens to facilitate screen-dependent behavior.
111 |
112 | ```
113 | +------------+ +----------------+
114 | /-----> | ItemBinder | <-------------------- | Dagger 2 Maps |
115 | / +------------+ +----------------+
116 | / v v
117 | / +--------+ +------------+ +-------------------+
118 | / /----> | Binder | --> | ViewHolder | <-- | ViewHolderCreator |
119 | +-------+ / +--------+ +------------+ +-------------------+
120 | | Model | *------> | Binder | --> | ViewHolder | <-- | ViewHolderCreator |
121 | +-------+ \ +--------+ +------------+ +-------------------+
122 | \----> | Binder | --> | ViewHolder | <-- | ViewHolderCreator |
123 | +--------+ +------------+ +-------------------+
124 | ```
125 |
126 | But using Dagger 2 by itself does not improve startup time, because the maps are created at injection time, which requires all the binders to also be created. This can be somewhat alleviated with `Lazy