Android开发中优秀的app 异常处理机制

package com.example.administrator.exceptiontest;import android.app.ActivityManager;import android.app.Application;import android.content.Context;/** * Created by Administrator on 2015/12/9. */public class BaseApplication extends Application {  public static Context mContext;  //默认的异常处理  public static Thread.UncaughtExceptionHandler defaultUncaughtExceptionHandler;  @Override  public void onCreate() {    super.onCreate();    mContext = this;    //先取得默认的异常处理handler    defaultUncaughtExceptionHandler = Thread.getDefaultUncaughtExceptionHandler();    Thread.setDefaultUncaughtExceptionHandler(new BaseUncaughtExceptionHandler());  }}

package com.example.administrator.exceptiontest;import android.app.ActivityManager;import android.content.Context;import android.os.Looper;/** * Created by Administrator on 2015/12/9. */public class Utils {  /**   * 判断是否在主线程中执行 如果是返回true 不是返回false   */  public static boolean isInMainThread() {    //注意这个地方 我们无法一定可以取得myLooper的值的 比如说 你的thread 没有绑定消息循环    //那你的mylooper就返回的一定是null了，只有绑定了以后才会返回相应的值    return Looper.myLooper() == Looper.getMainLooper();  }  //判断是否是主进程 如果是 就返回true 否则返回false  public static boolean isMainProcess(Context context)  {    return context.getPackageName().equals(getProcessName(context));  }  //取得进程名  public static String getProcessName(Context context) {    String currentProcessName = "";    int pid = android.os.Process.myPid();    ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);    for (ActivityManager.RunningAppProcessInfo processInfo : manager.getRunningAppProcesses()) {      if (processInfo.pid == pid) {        currentProcessName = processInfo.processName;        break;      }    }    return currentProcessName;  }}

package com.example.administrator.exceptiontest;import java.io.PrintWriter;import java.io.StringWriter;import java.io.Writer;/** * Created by Administrator on 2015/12/9. */public class BaseUncaughtExceptionHandler implements Thread.UncaughtExceptionHandler {  @Override  public void uncaughtException(Thread thread, Throwable ex) {    Writer resultWriter = new StringWriter();    PrintWriter printWriter = new PrintWriter(resultWriter);    ex.printStackTrace(printWriter);    StringBuffer sb = new StringBuffer();    sb.append("是否在主线程中发生异常" + Utils.isInMainThread() + "/n");    sb.append("是否在主进程中发生异常" + Utils.isMainProcess(BaseApplication.mContext) + "/n");    String errorReport = sb.toString() + resultWriter.toString();    //这个地方最好把收集到的错误信息日志 上传至服务器 便于开发者定位修改问题。    //如果是主进程发生了异常 那还是交给系统自己默认的异常处理来做。让用户感知到，否则用户啥都不知道 体验并不好    //你当然也可以自己定义特殊的错误提示 比如一些有意思的dialog什么的    if (Utils.isMainProcess(BaseApplication.mContext)) {      BaseApplication.defaultUncaughtExceptionHandler.uncaughtException(thread, ex);    } else {      //如果是子进程发生异常 不要给提示 直接掉子程最好 用感知到      android.os.Process.killProcess(android.os.Process.myPid());    }  }}