用注解实现回调

AriaCompiler/src/main/java/com/arialyy/compiler/AriaProcessor.java

@@ -0,0 +1,54 @@
+package com.arialyy.compiler;
+
+import com.arialyy.annotations.Download;
+import com.arialyy.annotations.Test;
+import com.google.auto.service.AutoService;
+import java.util.LinkedHashSet;
+import java.util.Set;
+import javax.annotation.processing.AbstractProcessor;
+import javax.annotation.processing.ProcessingEnvironment;
+import javax.annotation.processing.Processor;
+import javax.annotation.processing.RoundEnvironment;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.TypeElement;
+
+/**
+ * Created by lyy on 2017/6/6.
+ * 事件注解扫描器
+ */
+@AutoService(Processor.class) public class AriaProcessor extends AbstractProcessor {
+  ElementHandle mHandler;
+
+  @Override public synchronized void init(ProcessingEnvironment processingEnv) {
+    super.init(processingEnv);
+    PrintLog.init(processingEnv.getMessager());
+    mHandler = new ElementHandle(processingEnv.getFiler());
+  }
+
+  @Override public Set<String> getSupportedAnnotationTypes() {
+    Set<String> annotataions = new LinkedHashSet<>();
+    annotataions.add(Download.onPre.class.getCanonicalName());
+    annotataions.add(Download.onNoSupportBreakPoint.class.getCanonicalName());
+    annotataions.add(Download.onTaskCancel.class.getCanonicalName());
+    annotataions.add(Download.onTaskComplete.class.getCanonicalName());
+    annotataions.add(Download.onTaskFail.class.getCanonicalName());
+    annotataions.add(Download.onTaskPre.class.getCanonicalName());
+    annotataions.add(Download.onTaskResume.class.getCanonicalName());
+    annotataions.add(Download.onTaskRunning.class.getCanonicalName());
+    annotataions.add(Download.onTaskStart.class.getCanonicalName());
+    annotataions.add(Download.onTaskStop.class.getCanonicalName());
+    annotataions.add(Test.class.getCanonicalName());
+    return annotataions;
+  }
+
+  @Override public SourceVersion getSupportedSourceVersion() {
+    return SourceVersion.latestSupported();
+  }
+
+  @Override
+  public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+    PrintLog.getInstance().info("开始扫描");
+    mHandler.handle(roundEnv);
+    return true;
+  }
+}