refine code according to checkstyle

src/com/netease/qa/emmagee/activity/MainPageActivity.java

@@ -54,16 +54,15 @@ import com.netease.qa.emmagee.utils.Programe;
 import com.netease.qa.emmagee.R;
 
 /**
- * Main Page of Emmagee.
- * @author andrewleo
+ * Main Page of Emmagee
  *
  */
 public class MainPageActivity extends Activity {
 
-	private final String LOG_TAG = "Emmagee-"
+	private static final String LOG_TAG = "Emmagee-"
 			+ MainPageActivity.class.getSimpleName();
 
-	private final int TIMEOUT = 20000;
+	private static final int TIMEOUT = 20000;
 
 	private List<Programe> processList;
 	private ProcessInfo processInfo;
@@ -265,6 +264,9 @@ public class MainPageActivity extends Activity {
 		List<Programe> programe;
 		int tempPosition = -1;
 
+		/**
+		 * save status of all installed processes
+		 */
 		class Viewholder {
 			TextView txtAppName;
 			ImageView imgViAppIcon;

src/com/netease/qa/emmagee/activity/SettingsActivity.java

@@ -36,9 +36,13 @@ import android.widget.Toast;
 
 import com.netease.qa.emmagee.R;
 
+/**
+ * Setting Page of Emmagee
+ *
+ */
 public class SettingsActivity extends Activity {
 
-	private final String LOG_TAG = "Emmagee-"
+	private static final String LOG_TAG = "Emmagee-"
 			+ SettingsActivity.class.getSimpleName();
 
 	private CheckBox chkFloat;
@@ -64,13 +68,13 @@ public class SettingsActivity extends Activity {
 		try {
 			raf = new RandomAccessFile(settingTempFile, "r");
 			String f = raf.readLine();
-			if (f == null || (f != null && f.equals(""))) {
+			if (f == null || ("".equals(f))) {
 				time = "5";
 			} else {
 				time = f;
 			}
 			String tag = raf.readLine();
-			if (tag != null && tag.equals("false")) {
+			if ("false".equals(tag)) {
 				floatingTag = false;
 			}
 			raf.close();
@@ -92,7 +96,7 @@ public class SettingsActivity extends Activity {
 					Toast.makeText(SettingsActivity.this, "输入数据无效，请重新输入",
 							Toast.LENGTH_LONG).show();
 					edtTime.setText("");
-				} else if (time.equals("") || Long.parseLong(time) == 0) {
+				} else if ("".equals(time) || Long.parseLong(time) == 0) {
 					Toast.makeText(SettingsActivity.this, "输入数据为空,请重新输入",
 							Toast.LENGTH_LONG).show();
 					edtTime.setText("");

src/com/netease/qa/emmagee/service/EmmageeService.java

@@ -53,6 +53,10 @@ import com.netease.qa.emmagee.utils.MemoryInfo;
 import com.netease.qa.emmagee.utils.MyApplication;
 import com.netease.qa.emmagee.R;
 
+/**
+ * Service running in background
+ *
+ */
 public class EmmageeService extends Service {
 
 	private final static String LOG_TAG = "Emmagee-"
@@ -151,7 +155,7 @@ public class EmmageeService extends Service {
 			RandomAccessFile raf = new RandomAccessFile(new File(
 					settingTempFile), "r");
 			time = raf.readLine();
-			isFloating = raf.readLine().equals("true") ? true : false;
+			isFloating = ("true".equals(raf.readLine())) ? true : false;
 			raf.close();
 		} catch (IOException e) {
 			time = "5";
@@ -322,8 +326,8 @@ public class EmmageeService extends Service {
 				processCpuRatio = processInfo.get(0);
 				totalCpuRatio = processInfo.get(1);
 				trafficSize = processInfo.get(2);
-				if (trafficSize != null && !trafficSize.equals("")
-						&& !trafficSize.equals("-1")) {
+				if ("".equals(trafficSize)
+						&& !("-1".equals(trafficSize))) {
 					tempTraffic = Integer.parseInt(trafficSize);
 					if (tempTraffic > 1024) {
 						isMb = true;
@@ -336,7 +340,7 @@ public class EmmageeService extends Service {
 						+ freeMemoryKb + "MB");
 				txtTotalMem.setText("占用CPU:" + processCpuRatio + "%"
 						+ ",总体CPU:" + totalCpuRatio + "%");
-				if (trafficSize.equals("-1")) {
+				if ("-1".equals(trafficSize)) {
 					txtTraffic.setText("本程序或本设备不支持流量统计");
 				} else if (isMb)
 					txtTraffic.setText("消耗流量:" + fomart.format(trafficMb)

src/com/netease/qa/emmagee/utils/CpuInfo.java

@@ -29,6 +29,10 @@ import com.netease.qa.emmagee.service.EmmageeService;
 import android.content.Context;
 import android.util.Log;
 
+/**
+ * operate CPU information
+ * 
+ */
 public class CpuInfo {
 
 	private static final String LOG_TAG = "Emmagee-"
@@ -46,7 +50,7 @@ public class CpuInfo {
 	private long lastestTraffic;
 	private long traffic;
 	private TrafficInfo trafficInfo;
-	private ArrayList<String> CpuUsedRatio;
+	private ArrayList<String> cpuUsedRatio;
 	private long totalCpu2;
 	private long processCpu2;
 	private long idleCpu2;
@@ -61,7 +65,7 @@ public class CpuInfo {
 		formatterFile = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 		mi = new MemoryInfo();
 		totalMemorySize = mi.getTotalMemory();
-		CpuUsedRatio = new ArrayList<String>();
+		cpuUsedRatio = new ArrayList<String>();
 	}
 
 	/**
@@ -141,7 +145,7 @@ public class CpuInfo {
 		fomart.setMinimumFractionDigits(2);
 
 		readCpuStat();
-		CpuUsedRatio.clear();
+		cpuUsedRatio.clear();
 
 		try {
 			Calendar cal = Calendar.getInstance();
@@ -160,7 +164,8 @@ public class CpuInfo {
 				processCpuRatio = fomart
 						.format(100 * ((double) (processCpu - processCpu2) / (double) (totalCpu - totalCpu2)));
 				totalCpuRatio = fomart
-						.format(100 * ((double) ((totalCpu - idleCpu) - (totalCpu2 - idleCpu2)) / (double) (totalCpu - totalCpu2)));
+						.format(100 * ((double) ((totalCpu - idleCpu) - (totalCpu2 - idleCpu2)) 
+								/ (double) (totalCpu - totalCpu2)));
 				long pidMemory = mi.getPidMemorySize(pid, context);
 				String pMemory = fomart.format((double) pidMemory / 1024);
 				long freeMemory = mi.getFreeMemorySize(context);
@@ -186,14 +191,14 @@ public class CpuInfo {
 			totalCpu2 = totalCpu;
 			processCpu2 = processCpu;
 			idleCpu2 = idleCpu;
-			CpuUsedRatio.add(processCpuRatio);
-			CpuUsedRatio.add(totalCpuRatio);
-			CpuUsedRatio.add(String.valueOf(traffic));
+			cpuUsedRatio.add(processCpuRatio);
+			cpuUsedRatio.add(totalCpuRatio);
+			cpuUsedRatio.add(String.valueOf(traffic));
 		} catch (IOException e) {
 			e.printStackTrace();
 			// PttService.closeOpenedStream()
 		}
-		return CpuUsedRatio;
+		return cpuUsedRatio;
 
 	}
 

src/com/netease/qa/emmagee/utils/MemoryInfo.java

@@ -25,6 +25,10 @@ import android.content.Context;
 import android.os.Debug;
 import android.util.Log;
 
+/**
+ * operate memory information
+ * 
+ */
 public class MemoryInfo {
 
 	private static final String LOG_TAG = "Emmagee-"
@@ -100,7 +104,7 @@ public class MemoryInfo {
 
 	/**
 	 * get the sdk version of phone.
-	 *
+	 * 
 	 * @return sdk version
 	 */
 	public String getSDKVersion() {
@@ -109,7 +113,7 @@ public class MemoryInfo {
 
 	/**
 	 * get phone type.
-	 *
+	 * 
 	 * @return phone type
 	 */
 	public String getPhoneType() {

src/com/netease/qa/emmagee/utils/MyApplication.java

@@ -19,8 +19,12 @@ package com.netease.qa.emmagee.utils;
 import android.app.Application;
 import android.view.WindowManager;
 
+/**
+ * my application class
+ * 
+ */
 public class MyApplication extends Application {
-	
+
 	private WindowManager.LayoutParams wmParams = new WindowManager.LayoutParams();
 
 	public WindowManager.LayoutParams getMywmParams() {

src/com/netease/qa/emmagee/utils/ProcessInfo.java

@@ -28,12 +28,16 @@ import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.util.Log;
 
+/**
+ * get information of processes
+ *
+ */
 public class ProcessInfo {
 
-	private final String LOG_TAG = "Emmagee-"
+	private static final String LOG_TAG = "Emmagee-"
 			+ ProcessInfo.class.getSimpleName();
 
-	private final String PACKAGE_NAME = "com.netease.qa.emmagee";
+	private static final String PACKAGE_NAME = "com.netease.qa.emmagee";
 
 	/**
 	 * get information of all running processes,including package name ,process

src/com/netease/qa/emmagee/utils/Programe.java

@@ -18,6 +18,11 @@ package com.netease.qa.emmagee.utils;
 
 import android.graphics.drawable.Drawable;
 
+/**
+ * details of installed processes ,including
+ * icon,packagename,pid,uid,processname
+ * 
+ */
 public class Programe {
 	private Drawable icon;
 	private String processName;

src/com/netease/qa/emmagee/utils/TrafficInfo.java

@@ -22,6 +22,10 @@ import java.io.RandomAccessFile;
 
 import android.util.Log;
 
+/**
+ * information of network traffic
+ *
+ */
 public class TrafficInfo {
 
 	private static final String LOG_TAG = "Emmagee-"
@@ -72,6 +76,6 @@ public class TrafficInfo {
 		if (rcvTraffic == -1 || sndTraffic == -1) {
 			return -1;
 		} else
-			return (rcvTraffic + sndTraffic);
+			return rcvTraffic + sndTraffic;
 	}
 }