在于设备不好链接的情况下，我们最好选择将异常生成log下来。这样就会方便许多。
package com.home.exception;import java.io.File;import java.io.FileOutputStream;import java.io.PrintWriter;import java.io.StringWriter;import java.io.Writer;import java.lang.Thread.UncaughtExceptionHandler;import java.text.DateFormat;import java.text.SimpleDateFormat;import java.util.Date;import com.android.util.CommonToast;import com.android.util.GetFileSize;import com.redbull.log.Logger;import android.content.Context;import android.content.Intent;import android.content.pm.PackageManager;import android.os.Handler;import android.os.Looper;public class CrashHandler implements UncaughtExceptionHandler {    /**     * 记录错误日志文件到本地路径     */    public static String logEPath = "mnt/sdcard/Android/logE";    // CrashHandler实例    private static CrashHandler INSTANCE = new CrashHandler();    // 程序的Context对象    private Context mContext;    GetFileSize getSize;    // int count = 0;    // 系统默认的UncaughtException处理类    private Thread.UncaughtExceptionHandler mDefaultHandler;    private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");    private CrashHandler() {    }    /**     * 获取CrashHandler实例 ,单例模式     *      * @return     */    public static CrashHandler getInstance() {        return INSTANCE;    }    /**     * 初始化     *      * @param context     */    public void init(Context context) {        mContext = context;        getSize = new GetFileSize(logEPath);        // 获取系统默认的UncaughtException        mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();        // 设置该CrashHandler为程序的默认处理器        Thread.setDefaultUncaughtExceptionHandler(this);    }    /**     * 当UncaughtException发生时会转入该函数来处理     */    @Override    public 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 {            try {                Thread.sleep(3 * 1000);            } catch (Exception e) {                Logger.e("Error","error:" + e.getMessage() + "," + e.toString());            }            // 退出程序            android.os.Process.killProcess(android.os.Process.myPid());            myHandler.sendEmptyMessage(1);            System.exit(0);            // to restart the project        }    }    Handler myHandler = new Handler() {        public void handleMessage(android.os.Message msg) {            toReRoot();        };    };    public void toReRoot() {        // VLCApplication.EditShare(false);        // Intent i = new Intent().setClass(mContext, BeforePreActivity.class);        // /**        // * i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); the sentence is to over        // * whole the activity of the process        // * */        // i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);        // mContext.startActivity(i);        PackageManager manager = mContext.getPackageManager();        Intent it = manager.getLaunchIntentForPackage("com.example.clock");        it.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP                | Intent.FLAG_ACTIVITY_NEW_TASK);        mContext.startActivity(it);    }    /**     * 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     *      * @param ex     * @return 处理了该异常信息返回true，否则返回false     */    private boolean handleException(Throwable ex) {        if (ex == null) {            return false;        }        // 使用toast来显示异常信息        new Thread() {            @Override            public void run() {                Looper.prepare();                CommonToast toast = new CommonToast(mContext);                toast.setDuration(1000);                toast.setText("很抱歉，程序获取数据受阻，将为您重新加载。。");                toast.show();                Looper.loop();                super.run();            }        }.start();        getSize.toDoFile();        // 保存日志文件到本地        saveCrashInfo(ex);        return true;    }    /**     * 保存错误信息到文件中     *      * @param ex     * @return     */    private File saveCrashInfo(Throwable ex) {        File Lfile = new File(logEPath);        StringBuffer sb = new StringBuffer();        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());            File dir = new File(logEPath);            String fileName = "homecrash-" + time + "-" + timestamp + ".log";            if (!dir.exists()) {                System.out.println("dir.mkdirs();");                dir.mkdirs();            }            File file = new File(dir, fileName);            if (!file.exists()) {                file.createNewFile();            }            FileOutputStream fos = new FileOutputStream(file);            fos.write(sb.toString().getBytes());            System.out.println("fos is==>" + fos);            fos.close();            return file;        } catch (Exception e) {            Logger.e("an error occured while writing file...", "" + e);        }        return null;    }}