修改eclipse项目为as项目

app/src/main/java/com/lianxin/nr510/Engine.java

@@ -0,0 +1,64 @@
+package com.lianxin.nr510;
+
+import android.content.Context;
+import android.content.Intent;
+
+public class Engine {
+	
+	private NR510Running runEngine = null;
+	
+	public void start(Context context) {
+		if (runEngine == null) {
+			runEngine = new NR510Running(context);
+			new Thread(runEngine).start();
+		}
+	}
+	
+	public void stop(Context context) {
+		if (runEngine != null) {
+			Intent  intent = new  Intent("com.lachesis.barcode.STOP_BARCODE");
+			context.sendBroadcast(intent);  
+			runEngine.closeRunning();
+			runEngine = null;
+		}
+	}
+	
+	private class NR510Running implements Runnable {
+		
+		private boolean scanRunning = true;
+		private Context context;
+		
+		public NR510Running(Context context) {
+			this.context = context;
+		}
+		
+		public void closeRunning() {
+			scanRunning = false;
+		}
+
+		@Override
+		public void run() {
+			while (true) {
+				if (scanRunning) {
+					Intent  intent = new  Intent("com.lachesis.barcode.START_BARCODE");
+					context.sendBroadcast(intent); 
+					try {
+						Thread.sleep(1500);
+					} catch (InterruptedException e) {
+						e.printStackTrace();
+					}
+					intent = new  Intent("com.lachesis.barcode.STOP_BARCODE");
+					context.sendBroadcast(intent); 
+					try {
+						Thread.sleep(1000);
+					} catch (InterruptedException e) {
+						e.printStackTrace();
+					}
+				} else 
+					break;
+			}
+		}
+		
+	}
+
+}