android 程序漰溃 后台handle处理类

import java.io.File;import java.io.FileOutputStream;import java.io.FilenameFilter;import java.io.PrintWriter;import java.io.StringWriter;import java.io.Writer;import java.lang.Thread.UncaughtExceptionHandler;import java.lang.reflect.Field;import java.util.Arrays;import java.util.Properties;import java.util.TreeSet;import android.content.Context;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.content.pm.PackageManager.NameNotFoundException;import android.os.Build;import android.os.Looper;import android.util.Log;import android.widget.Toast;/** * UncaughtException处理类,当程序发生Uncaught异常的时候,有该类 来接管程序,并记录 发送错误报告.. 註冊方式 * CrashHandler crashHandler = CrashHandler.getInstance(); //注册crashHandler * crashHandler.init(getApplicationContext()); //发送以前没发送的报告(可选) * crashHandler.sendPreviousReportsToServer(); *  */public class CrashHandler implements UncaughtExceptionHandler {/** Debug Log tag */public static final String TAG = "CrashHandler";/** * 是否开启日志输出,在Debug状态下开启, 在Release状态下关闭以提示程序性能 * */public static final boolean DEBUG = true;/** 系统默认的UncaughtException处理类 */private Thread.UncaughtExceptionHandler mDefaultHandler;/** CrashHandler实例 */private static CrashHandler INSTANCE;/** 程序的Context对象 */private Context mContext;/** 使用Properties来保存设备的信息和错误堆栈信息 */private Properties mDeviceCrashInfo = new Properties();private static final String VERSION_NAME = "versionName";private static final String VERSION_CODE = "versionCode";private static final String STACK_TRACE = "STACK_TRACE";/** 错误报告文件的扩展名 */private static final String CRASH_REPORTER_EXTENSION = ".cr";/** 保证只有一个CrashHandler实例 */private CrashHandler() {}/** 获取CrashHandler实例 ,单例模式 */public static CrashHandler getInstance() {if (INSTANCE == null) {INSTANCE = new CrashHandler();}return INSTANCE;}/** * 初始化,注册Context对象, 获取系统默认的UncaughtException处理器, 设置该CrashHandler为程序的默认处理器 *  * @param ctx */public void init(Context ctx) {mContext = ctx;mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();Thread.setDefaultUncaughtExceptionHandler(this);}/** * 当UncaughtException发生时会转入该函数来处理 */@Overridepublic void uncaughtException(Thread thread, Throwable ex) {if (!handleException(ex) && mDefaultHandler != null) {// 如果用户没有处理则让系统默认的异常处理器来处理mDefaultHandler.uncaughtException(thread, ex);} else {// Sleep一会后结束程序try {Thread.sleep(3000);} catch (InterruptedException e) {Log.e(TAG, "Error : ", e);}android.os.Process.killProcess(android.os.Process.myPid());System.exit(10);}}/** * 自定义错误处理,收集错误信息 发送错误报告等操作均在此完成. 开发者可以根据自己的情况来自定义异常处理逻辑 *  * @param ex * @return true:如果处理了该异常信息;否则返回false */private boolean handleException(Throwable ex) {if (ex == null) {return true;}final String msg = ex.getLocalizedMessage();// 使用Toast来显示异常信息new Thread() {@Overridepublic void run() {Looper.prepare();Toast.makeText(mContext, "程序出错啦:" + msg, Toast.LENGTH_LONG).show();Looper.loop();}}.start();// 收集设备信息collectCrashDeviceInfo(mContext);// 保存错误报告文件String crashFileName = saveCrashInfoToFile(ex);// 发送错误报告到服务器sendCrashReportsToServer(mContext);return true;}/** * 在程序启动时候, 可以调用该函数来发送以前没有发送的报告 */public void sendPreviousReportsToServer() {sendCrashReportsToServer(mContext);}/** * 把错误报告发送给服务器,包含新产生的和以前没发送的. *  * @param ctx */private void sendCrashReportsToServer(Context ctx) {String[] crFiles = getCrashReportFiles(ctx);if (crFiles != null && crFiles.length > 0) {TreeSet<String> sortedFiles = new TreeSet<String>();sortedFiles.addAll(Arrays.asList(crFiles));for (String fileName : sortedFiles) {File cr = new File(ctx.getFilesDir(), fileName);postReport(cr);cr.delete();// 删除已发送的报告}}}private void postReport(File file) {// TODO 使用HTTP Post 发送错误报告到服务器// 这里不再详述,开发者可以根据OPhoneSDN上的其他网络操作// 教程来提交错误报告}/** * 获取错误报告文件名 *  * @param ctx * @return */private String[] getCrashReportFiles(Context ctx) {File filesDir = ctx.getFilesDir();FilenameFilter filter = new FilenameFilter() {public boolean accept(File dir, String name) {return name.endsWith(CRASH_REPORTER_EXTENSION);}};return filesDir.list(filter);}/** * 保存错误信息到文件中 *  * @param ex * @return */private String saveCrashInfoToFile(Throwable ex) {Writer info = new StringWriter();PrintWriter printWriter = new PrintWriter(info);ex.printStackTrace(printWriter);Throwable cause = ex.getCause();while (cause != null) {cause.printStackTrace(printWriter);cause = cause.getCause();}String result = info.toString();printWriter.close();mDeviceCrashInfo.put(STACK_TRACE, result);String fileName = "";try {long timestamp = System.currentTimeMillis();fileName = "crash-" + timestamp + CRASH_REPORTER_EXTENSION;FileOutputStream trace = mContext.openFileOutput(fileName,Context.MODE_PRIVATE);mDeviceCrashInfo.store(trace, "");trace.flush();trace.close();return fileName;} catch (Exception e) {Log.e(TAG, "an error occured while writing report file..."+ fileName, e);}return null;}/** * 收集程序崩溃的设备信息 *  * @param ctx */public void collectCrashDeviceInfo(Context ctx) {try {PackageManager pm = ctx.getPackageManager();PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(),PackageManager.GET_ACTIVITIES);if (pi != null) {mDeviceCrashInfo.put(VERSION_NAME,pi.versionName == null ? "not set" : pi.versionName);mDeviceCrashInfo.put(VERSION_CODE, pi.versionCode);}} catch (NameNotFoundException e) {Log.e(TAG, "Error while collect package info", e);}// 使用反射来收集设备信息.在Build类中包含各种设备信息,// 例如: 系统版本号,设备生产商 等帮助调试程序的有用信息// 具体信息请参考后面的截图Field[] fields = Build.class.getDeclaredFields();for (Field field : fields) {try {field.setAccessible(true);mDeviceCrashInfo.put(field.getName(), field.get(null));if (DEBUG) {Log.d(TAG, field.getName() + " : " + field.get(null));}} catch (Exception e) {Log.e(TAG, "Error while collect crash info", e);}}}}