主要方法：通過Thread.setDefaultUncaughtExceptionHandler()方法將異常處理類設定到執行緒上即可。

實現類

public class CrashHandler implements UncaughtExceptionHandler {

	public static final String TAG = "CrashHandler";
    
    //系統預設的UncaughtException處理類   
    private Thread.UncaughtExceptionHandler mDefaultHandler;
    //CrashHandler例項  
    private static CrashHandler INSTANCE = new CrashHandler();  
    //程式的Context物件  
    private Context mContext;
    //用來儲存裝置資訊和異常資訊  
    private Map<String, String> infos = new HashMap<String, String>();


    //用於格式化日期,作為日誌檔名的一部分  
    private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
  
    /** 保證只有一個CrashHandler例項 */
    public CrashHandler() {
    }  
  
    /** 獲取CrashHandler例項 ,單例模式 */  
    public static CrashHandler getInstance() {  
        return INSTANCE;  
    }  
  
    /** 
     * 初始化 
     *  
     * @param context 
     */  
    public void init(Context context) {
        mContext = context;  
        //獲取系統預設的UncaughtException處理器  
        mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
        //設定該CrashHandler為程式的預設處理器  
        Thread.setDefaultUncaughtExceptionHandler(this);
    }  
  
    /** 
     * 當UncaughtException發生時會轉入該函式來處理 
     */  
    @Override
    public void uncaughtException(Thread thread, Throwable ex) {
        if (!handleException(ex) && mDefaultHandler != null) {  
            //如果使用者沒有處理則讓系統預設的異常處理器來處理  
            mDefaultHandler.uncaughtException(thread, ex);  
        } else {  
            try {  
                Thread.sleep(3000);
            } catch (InterruptedException e) {
                Log.e(TAG, "error : ", e);
            }  
            //退出程式  
            android.os.Process.killProcess(android.os.Process.myPid());  
            System.exit(1);
        }  
    }  

    /**
     * 自定義錯誤處理,收集錯誤資訊 傳送錯誤報告等操作均在此完成.
     *  
     * @param ex 
     * @return true:如果處理了該異常資訊;否則返回false. 
     */  
    private boolean handleException(Throwable ex) {
        if (ex == null) {  
            return false;  
        }  
        //使用Toast來顯示異常資訊  
        new Thread() {
            @Override
            public void run() {  
                Looper.prepare();
                //Toast.makeText(mContext, "...程式.出錯了...", Toast.LENGTH_SHORT).show();  
                Looper.loop();
            }  
        }.start();  
        //收集裝置引數資訊   
        collectDeviceInfo(mContext);  
        //儲存日誌檔案   
        saveCrashInfo2File(ex);  
        return true;  
    }  
      
    /** 
     * 收集裝置引數資訊 
     * @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);
            }  
        }  
    }  
  
    /** 
     * 儲存錯誤資訊到檔案中 
     *  
     * @param ex 
     * @return  返回檔名稱,便於將檔案傳送到伺服器 
     */  
    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 = Environment.getExternalStorageDirectory().getPath()+ "/crash/";
                File dir = new File(path);
                if (!dir.exists()) {  
                    dir.mkdirs();  
                }else{
                    deleteExpireFiles(path);
                }
                File logFile=new File(path + fileName);
                if(!logFile.exists()){
                    logFile.createNewFile();
                }
                FileOutputStream fos = new FileOutputStream(logFile);
                fos.write(sb.toString().getBytes());  
                fos.close();  
            }  
            return fileName;  
        } catch (Exception e) {
            Log.e(TAG, "an error occured while writing file...", e);
        }  
        return null;  
    }

    public static void deleteExpireFiles(String dirName) {
        File dir = new File(dirName);
        if(dir.isDirectory()){
           File[] files =  dir.listFiles();
            for (int i = 0 ; i<files.length ; i++){
                if(i < 5 && files.length > 5){
                    Log.i(TAG,"file is delete "+files[i].getName() + " result : "+files[i].delete());
                }
            }
        }
    }


    public static void reportError(Context context, String error){

    }
    //或
    public static void reportError(Context context, Throwable e){

    }

}
 

 CrashHandler crashHandler = CrashHandler.getInstance();
        crashHandler.init(getApplicationContext());