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w ੜ͞ΕͨίʔυΛͦͷ··͏
w ੜ͞ΕͨίʔυʹॲཧΛҕৡ͢Δ
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w ϘΠϥʔϓϨʔτͷݮ
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w "OESPJE"QQ.PEVMF
w ඞਢͰͳ͍͕ಈ࡞֬ೝαϯϓϧͱͯ͠ศར
annotationProcessor project(':processor')
compile project(':library')
// or
provided project(':library')
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@Target({ElementType.TYPE, ElementType.FIELD})
@Retention(RetentionPolicy.CLASS)
public @interface MyCoolAnnotation {
}
MJCSBSZNPEVMF
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@Target({ElementType.TYPE, ElementType.FIELD})
@Retention(RetentionPolicy.CLASS)
public @interface MyCoolAnnotation {
}
MJCSBSZNPEVMF
ΞϊςʔγϣϯΛ͚ͭΒΕΔՕॴ
Ξϊςʔγϣϯ͕Δظؒ
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@MyCoolAnnotation
public class SampleClass {
@MyCoolAnnotation
final String text;
public SampleClass(String text) {
this.text = text;
}
}
TBNQMFNPEVMF
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QSPDFTTPSNPEVMF
dependencies {
compile project(":library")
compile 'com.squareup:javapoet:1.8.0'
compile 'com.google.auto.service:auto-service:1.0-rc2'
}
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QSPDFTTPSNPEVMF
dependencies {
compile project(":library")
compile 'com.squareup:javapoet:1.8.0'
compile 'com.google.auto.service:auto-service:1.0-rc2'
}
ίʔυੜϥΠϒϥϦ
ίϯύΠϧ࣌ʹࣗಈతʹ1SPDFTTPSΛ࣮ߦ
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QSPDFTTPSNPEVMF
dependencies {
compile project(":library")
compile 'com.squareup:javapoet:1.8.0'
compile 'com.google.auto.service:auto-service:1.0-rc2'
compile 'com.google.android:android:4.1.1.4'
}
sourceSets {
main {
java {
srcDirs = [‘src/main/java',
'../library/src/main/java']
}
}
}
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QSPDFTTPSNPEVMF
dependencies {
compile project(":library")
compile 'com.squareup:javapoet:1.8.0'
compile 'com.google.auto.service:auto-service:1.0-rc2'
compile 'com.google.android:android:4.1.1.4'
}
sourceSets {
main {
java {
srcDirs = [‘src/main/java',
'../library/src/main/java']
}
}
}
BOESPJEMJCSBSZΛࢀর͢Δ߹
BOESPJEMJCSBSZΛࢀর͢Δ߹
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@AutoService(Processor.class)
public class MyProcessor extends AbstractProcessor {
@Override
public Set getSupportedAnnotationTypes() {
return ImmutableSet.of(MyCoolAnnotation.class.getName());
}
@Override
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
@Override
public boolean process(Set extends TypeElement> set,
RoundEnvironment roundEnvironment) {
return false;
}
}
QSPDFTTPSNPEVMF
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@AutoService(Processor.class)
public class MyProcessor extends AbstractProcessor {
@Override
public Set getSupportedAnnotationTypes() {
return ImmutableSet.of(MyCoolAnnotation.class.getName());
}
@Override
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
@Override
public boolean process(Set extends TypeElement> set,
RoundEnvironment roundEnvironment) {
return false;
}
}
QSPDFTTPSNPEVMF
1SPDFTTPS͜ͷநΫϥεΛܧঝͯ͠
࡞Δͷ͕ศར
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@AutoService(Processor.class)
public class MyProcessor extends AbstractProcessor {
@Override
public Set getSupportedAnnotationTypes() {
return ImmutableSet.of(MyCoolAnnotation.class.getName());
}
@Override
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
@Override
public boolean process(Set extends TypeElement> set,
RoundEnvironment roundEnvironment) {
return false;
}
}
QSPDFTTPSNPEVMF
ίϯύΠϧ࣌ʹ͜ͷ1SPDFTTPS͕࣮ߦ͞ΕΔ
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@AutoService(Processor.class)
public class MyProcessor extends AbstractProcessor {
@Override
public Set getSupportedAnnotationTypes() {
return ImmutableSet.of(MyCoolAnnotation.class.getName());
}
@Override
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
@Override
public boolean process(Set extends TypeElement> set,
RoundEnvironment roundEnvironment) {
return false;
}
}
QSPDFTTPSNPEVMF
ॲཧରͷΞϊςʔγϣϯΛ4FUͰࢦఆ
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@AutoService(Processor.class)
public class MyProcessor extends AbstractProcessor {
@Override
public Set getSupportedAnnotationTypes() {
return ImmutableSet.of(MyCoolAnnotation.class.getName());
}
@Override
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
@Override
public boolean process(Set extends TypeElement> set,
RoundEnvironment roundEnvironment) {
return false;
}
}
QSPDFTTPSNPEVMF
αϙʔτ্ݶͷ+BWBόʔδϣϯ
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@AutoService(Processor.class)
public class MyProcessor extends AbstractProcessor {
@Override
public Set getSupportedAnnotationTypes() {
return ImmutableSet.of(MyCoolAnnotation.class.getName());
}
@Override
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
@Override
public boolean process(Set extends TypeElement> set,
RoundEnvironment roundEnvironment) {
return false;
}
}
QSPDFTTPSNPEVMF
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QSPDFTT
w QSPDFTT
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ͯ͡ෳճݺΕΔɻ͜ΕΛϥϯυͱ͍͏ɻ
w ֤ϥϯυͰੜ͞ΕͨιʔεΛݩʹ͞Βʹ࣍ͷϥ
ϯυ͕࣮ߦ͞ΕΔʢ࠷ϥϯυʣ
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͠ɺϑΝΠϧʹग़ྗ͢Δɻ
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QSPDFTTPSNPEVMF
private Elements elementUtils;
private Types typeUtils;
private Messager messager;
private Filer filer;
@Override
public synchronized void init(ProcessingEnvironment processingEnvironment) {
super.init(processingEnvironment);
elementUtils = processingEnvironment.getElementUtils();
typeUtils = processingEnvironment.getTypeUtils();
messager = processingEnvironment.getMessager();
filer = processingEnvironment.getFiler();
}
ศརͳϢʔςΟϦςΟ܈
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QSPDFTTPSNPEVMF
TypeElement classElement = roundEnvironment.getElementsAnnotatedWith(MyCoolAnnotation.class)
.stream()
.filter(element -> element.getKind() == ElementKind.CLASS)
.map(element -> (TypeElement) element)
.findFirst()
.get();
String className = classElement.getSimpleName().toString();
TypeSpec typeSpec = TypeSpec.classBuilder("Sub" + className).build();
JavaFile javaFile = JavaFile.builder("com.example", typeSpec).build();
try {
javaFile.writeTo(filer);
} catch (IOException e) {
messager.printMessage(Diagnostic.Kind.ERROR, e.getMessage());
}
ΞϊςʔγϣϯʹରԠ͢Δཁૉ
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QSPDFTTPSNPEVMF
TypeElement classElement = roundEnvironment.getElementsAnnotatedWith(MyCoolAnnotation.class)
.stream()
.filter(element -> element.getKind() == ElementKind.CLASS)
.map(element -> (TypeElement) element)
.findFirst()
.get();
String className = classElement.getSimpleName().toString();
TypeSpec typeSpec = TypeSpec.classBuilder("Sub" + className).build();
JavaFile javaFile = JavaFile.builder("com.example", typeSpec).build();
try {
javaFile.writeTo(filer);
} catch (IOException e) {
messager.printMessage(Diagnostic.Kind.ERROR, e.getMessage());
}
ΫϥεΛऔಘ
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QSPDFTTPSNPEVMF
TypeElement classElement = roundEnvironment.getElementsAnnotatedWith(MyCoolAnnotation.class)
.stream()
.filter(element -> element.getKind() == ElementKind.CLASS)
.map(element -> (TypeElement) element)
.findFirst()
.get();
String className = classElement.getSimpleName().toString();
TypeSpec typeSpec = TypeSpec.classBuilder("Sub" + className).build();
JavaFile javaFile = JavaFile.builder("com.example", typeSpec).build();
try {
javaFile.writeTo(filer);
} catch (IOException e) {
messager.printMessage(Diagnostic.Kind.ERROR, e.getMessage());
}
+BWBΫϥεΛੜ
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QSPDFTTPSNPEVMF
ੜ͞Εͨʂ
package com.example;
class SubSampleClass {
}
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&MFNFOU
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w &YFDVUBCMF&MFNFOUʜϝιου
w 7BSJBCMF&MFNFOUʜʑ
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w &MFNFOUBT5ZQF
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KBWBQPFU
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w $VDLPP
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w 7VMUVSF
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$VDLPP
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w ,PUMJOͷ$MBTT%FMFHBUJPOʹணΛಘͨ
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public interface Greeter {
String sayHello();
String sayHello(String toWhom);
}
public class EnglishGreeter implements Greeter {
@Override
public String sayHello() {
return sayHello("ANONYMOUS");
}
@Override
public String sayHello(String toWhom) {
return String.format("Hello %s !", toWhom);
}
}
$VDLPP
ΠϯλϑΣʔε
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public interface Greeter {
String sayHello();
String sayHello(String toWhom);
}
public class EnglishGreeter implements Greeter {
@Override
public String sayHello() {
return sayHello("ANONYMOUS");
}
@Override
public String sayHello(String toWhom) {
return String.format("Hello %s !", toWhom);
}
}
$VDLPP
࣮
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@Delegate
public abstract class EnglishGreeterWithRecording implements Greeter {
@By
final EnglishGreeter englishGreeter = new EnglishGreeter();
@Override
public String sayHello(String toWhom) {
// do anything you like here
return englishGreeter.sayHello(toWhom);
}
}
$VDLPP
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@Delegate
public abstract class EnglishGreeterWithRecording implements Greeter {
@By
final EnglishGreeter englishGreeter = new EnglishGreeter();
@Override
public String sayHello(String toWhom) {
// do anything you like here
return englishGreeter.sayHello(toWhom);
}
}
$VDLPP
!"CTUSBDU
!%FMFHBUF
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@Delegate
public abstract class EnglishGreeterWithRecording implements Greeter {
@By
final EnglishGreeter englishGreeter = new EnglishGreeter();
@Override
public String sayHello(String toWhom) {
// do anything you like here
return englishGreeter.sayHello(toWhom);
}
}
$VDLPP
JNQMFNFOUT
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@Delegate
public abstract class EnglishGreeterWithRecording implements Greeter {
@By
final EnglishGreeter englishGreeter = new EnglishGreeter();
@Override
public String sayHello(String toWhom) {
// do anything you like here
return englishGreeter.sayHello(toWhom);
}
}
$VDLPP
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ະ࣮ͷϝιου
!#Zम০ͨ͠Πϯελϯεʹ
͢ҕৡ͞ΕΔ
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$VDLPP
OFX*OTUBODF
Ͱऔಘ
// in your code
EnglishGreeterWithRecording greeter
= EnglishGreeterWithRecordingImpl.newInstance(new EnglishGreeter());
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annotationProcessor ‘us.shiroyama.android:cuckoo-processor:0.1.0'
provided 'us.shiroyama.android:cuckoo:0.1.0'
$VDLPP
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7VMUVSF
w ίʔϧόοΫΛϥΠϑαΠΫϧͰ҆શʹѻ͏ͨΊ
ͷϥΠϒϥϦ
w 'SBHNFOU5SBOTBDUJPODPNNJUͷ
*MMFHBM4UBUF&YDFQUJPOΛى͖ͳ͘͢Δ
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void fetchAsynchronously() {
/* do heavy asynchronous task here */
doCallback("finished!");
}
void doCallback(@NonNull String message) {
FinishDialog.newInstance().show(getSupportFragmentManager(), "TAG");
}
7VMUVSF
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void fetchAsynchronously() {
/* do heavy asynchronous task here */
doCallback("finished!");
}
void doCallback(@NonNull String message) {
FinishDialog.newInstance().show(getSupportFragmentManager(), "TAG");
}
7VMUVSF
ඇಉظॲཧ
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void fetchAsynchronously() {
/* do heavy asynchronous task here */
doCallback("finished!");
}
void doCallback(@NonNull String message) {
FinishDialog.newInstance().show(getSupportFragmentManager(), "TAG");
}
7VMUVSF
ίʔϧόοΫ
PO1BVTFҎ߱Ϋϥογϡ
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7VMUVSF
@ObserveLifecycle
public class YourActivity extends AppCompatActivity {
void fetchAsynchronously() {
SafeMainActivity.doCallbackSafely("finished!");
}
@SafeCallback
void doCallback(@NonNull String message) {
FinishDialog.newInstance().show(getSupportFragmentManager(), "TAG");
}
}
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7VMUVSF
@ObserveLifecycle
public class YourActivity extends AppCompatActivity {
void fetchAsynchronously() {
SafeMainActivity.doCallbackSafely("finished!");
}
@SafeCallback
void doCallback(@NonNull String message) {
FinishDialog.newInstance().show(getSupportFragmentManager(), "TAG");
}
}
!4BGF$BMMCBDL
͔ΘΓʹͪ͜ΒΛݺͼग़͢
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7VMUVSF
@Override
protected void onResume() {
super.onResume();
SafeMainActivity.register(this);
}
@Override
protected void onPause() {
SafeMainActivity.unregister();
super.onPause();
}
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7VMUVSF
@Override
protected void onResume() {
super.onResume();
SafeMainActivity.register(this);
}
@Override
protected void onPause() {
SafeMainActivity.unregister();
super.onPause();
}
ҕৡ
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7VMUVSF
annotationProcessor 'us.shiroyama.android:vulture-processor:0.1.0'
compile 'us.shiroyama.android:vulture:0.1.0'
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5IBOLZPV