CrashHandler.java

/**
 * 
 */
package coolbuy360.log;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.lang.reflect.Field;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import coolbuy360.searchhealth.R;
import coolbuy360.service.FileService;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;
import android.os.Environment;
import android.os.Looper;
import android.util.Log;
import android.widget.Toast;

/**
 * UncaughtException������,��������Uncaught�쳣��ʱ��,�и������ӹܳ���,����¼���ʹ��󱨸�.
 * 
 * @author yangxc
 * 
 */
public class CrashHandler implements UncaughtExceptionHandler {
	
	public static final String TAG = "CrashHandler";
	
	//ϵͳĬ�ϵ�UncaughtException������ 
	private Thread.UncaughtExceptionHandler mDefaultHandler;
	//CrashHandlerʵ��
	private static CrashHandler INSTANCE = new CrashHandler();
	//�����Context����
	private Context mContext;
	//�����洢�豸��Ϣ���쳣��Ϣ
	private Map<String, String> infos = new HashMap<String, String>();

	//���ڸ�ʽ������,��Ϊ��־�ļ�����һ����
	private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
	String path = "/sdcard/searchHealth/crash/";
	/** ��ֻ֤��һ��CrashHandlerʵ�� */
	private CrashHandler() {
	}

	/** ��ȡCrashHandlerʵ�� ,����ģʽ */
	public static CrashHandler getInstance() {
		return INSTANCE;
	}

	/**
	 * ��ʼ��
	 * 
	 * @param context
	 */
	public void init(Context context) {
		mContext = context;
		//��ȡϵͳĬ�ϵ�UncaughtException������
		mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
		//���ø�CrashHandlerΪ�����Ĭ�ϴ�����
		Thread.setDefaultUncaughtExceptionHandler(this);
	}

	/**
	 * ��UncaughtException����ʱ��ת��ú���������
	 */
	@Override
	public void uncaughtException(Thread thread, Throwable ex) {
		if (!handleException(ex) && mDefaultHandler != null) {
			//����û�û�д�������ϵͳĬ�ϵ��쳣������������
			mDefaultHandler.uncaughtException(thread, ex);
		} else {
			try {
				Thread.sleep(3000);
			} catch (InterruptedException e) {
				Log.e(TAG, "error : ", e);
			}
			//�˳�����
			android.os.Process.killProcess(android.os.Process.myPid());
			System.exit(1);
		}
	}

	/**
	 * �Զ��������,�ռ�������Ϣ ���ʹ��󱨸�Ȳ������ڴ����.
	 * 
	 * @param ex
	 * @return true:��������˸��쳣��Ϣ;���򷵻�false.
	 */
	private boolean handleException(Throwable ex) {
		if (ex == null) {
			return false;
		}
		//�ռ��豸������Ϣ 
		collectDeviceInfo(mContext);
		//������־�ļ� 
	    final String filePathString=path+saveCrashInfo2File(ex);	    
	    //
	    final String fileContentString=file2String(filePathString);
	    
		//ʹ��Toast����ʾ�쳣��Ϣ
		new Thread() {
			@Override
			public void run() {
				Looper.prepare();
				//Toast.makeText(mContext, "�ܱ�Ǹ,��������쳣,�����˳�.", Toast.LENGTH_LONG).show();
				sendAppCrashReport(mContext,fileContentString);				
				Looper.loop();
			}
		}.start();
	
		return true;
	}
	
	/**
	 * �ռ��豸������Ϣ
	 * @param ctx
	 */
	public void collectDeviceInfo(Context ctx) {
		try {
			PackageManager pm = ctx.getPackageManager();
			PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), PackageManager.GET_ACTIVITIES);
			if (pi != null) {
				String versionName = pi.versionName == null ? "null" : pi.versionName;
				String versionCode = pi.versionCode + "";
				infos.put("versionName", versionName);
				infos.put("versionCode", versionCode);
			}
		} catch (NameNotFoundException e) {
			Log.e(TAG, "an error occured when collect package info", e);
		}
		Field[] fields = Build.class.getDeclaredFields();
		for (Field field : fields) {
			try {
				field.setAccessible(true);
				infos.put(field.getName(), field.get(null).toString());
				Log.d(TAG, field.getName() + " : " + field.get(null));
			} catch (Exception e) {
				Log.e(TAG, "an error occured when collect crash info", e);
			}
		}
	}

	/**
	 * ���������Ϣ���ļ���
	 * 
	 * @param ex
	 * @return	�����ļ�����,���ڽ��ļ����͵�������
	 */
	private String saveCrashInfo2File(Throwable ex) {
		
		StringBuffer sb = new StringBuffer();
		for (Map.Entry<String, String> entry : infos.entrySet()) {
			String key = entry.getKey();
			String value = entry.getValue();
			sb.append(key + "=" + value + "\n");
		}
		
		Writer writer = new StringWriter();
		PrintWriter printWriter = new PrintWriter(writer);
		ex.printStackTrace(printWriter);
		Throwable cause = ex.getCause();
		while (cause != null) {
			cause.printStackTrace(printWriter);
			cause = cause.getCause();
		}
		printWriter.close();
		String result = writer.toString();
		sb.append(result);
		try {
			long timestamp = System.currentTimeMillis();
			String time = formatter.format(new Date());
			String fileName = "crash-" + time + "-" + timestamp + ".log";
			if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
				//String path = "/sdcard/searchHealth/crash/";
				File dir = new File(path);
				if (!dir.exists()) {
					dir.mkdirs();
				}
				FileOutputStream fos = new FileOutputStream(path + fileName);
				fos.write(sb.toString().getBytes());
				fos.close();
			}
			return fileName;
		} catch (Exception e) {
			Log.e(TAG, "an error occured while writing file...", e);
		}
		return null;
	}
	/**
	 * ����App�쳣��������
	 * 
	 * @param cont
	 * @param crashReport
	 */
	public static void sendAppCrashReport(final Context cont,
			final String crashReport) {
		AlertDialog.Builder builder = new AlertDialog.Builder(cont);
		builder.setIcon(android.R.drawable.ic_dialog_info);
		builder.setTitle(R.string.app_error);
		builder.setMessage(R.string.app_error_message);
		builder.setPositiveButton(R.string.submit_report,
				new DialogInterface.OnClickListener() {
					public void onClick(DialogInterface dialog, int which) {
						dialog.dismiss();
						// �����쳣����
						Intent i = new Intent(Intent.ACTION_SEND);
						// i.setType("text/plain"); //ģ����
						i.setType("message/rfc822"); // ���
						i.putExtra(Intent.EXTRA_EMAIL,
								new String[] {"brokge@qq.com"});
						i.putExtra(Intent.EXTRA_SUBJECT,
								"��Դ�й�Android�ͻ��� - ���󱨸�");
						i.putExtra(Intent.EXTRA_TEXT, crashReport);
						cont.startActivity(Intent.createChooser(i, "���ʹ��󱨸�"));
						// �˳�
						//AppManager.getAppManager().AppExit(cont);
					}
				});
		builder.setNegativeButton(R.string.sure,
				new DialogInterface.OnClickListener() {
					public void onClick(DialogInterface dialog, int which) {
						dialog.dismiss();
						// �˳�
						//AppManager.getAppManager().AppExit(cont);
					}
				});
		builder.show();
	}

	public String  file2String(String filePathString) {
		 FileService fileService=new FileService(mContext);  // 
		 try {
			 return fileService.readFileSdcardFile(filePathString);
		} catch (IOException e) {
			// TODO �Զ����ɵ� catch ��
			return null;
		}		
	}
	
	
}