Android application捕获崩溃异常怎么办

android application捕获崩溃异常怎么办？

通用 application
1、收集所有 avtivity 用于彻底退出应用
2、捕获崩溃异常,保存错误日志,并重启应用

public class hkbaseapplication extends application {
 // activity对象列表,用于activity统一管理
 private list<activity> activitylist;
 // 异常捕获
 protected boolean isneedcaughtexeption = true;// 是否捕获未知异常
 private pendingintent restartintent;
 private myuncaughtexceptionhandler uncaughtexceptionhandler;
 private string packgename;

 @override
 public void oncreate() {
 super.oncreate();

 activitylist = new arraylist<activity>();
 packgename = getpackagename();

 if (isneedcaughtexeption) {
  cauchexception();
 }
 }

 // -------------------异常捕获-----捕获异常后重启系统-----------------//

 private void cauchexception() {
 intent intent = new intent();
 // 参数1：包名，参数2：程序入口的activity
 intent.setclassname(packgename, packgename + ".loginactivity");
 restartintent = pendingintent.getactivity(getapplicationcontext(), -1, intent,
  intent.flag_activity_new_task);

 // 程序崩溃时触发线程
 uncaughtexceptionhandler = new myuncaughtexceptionhandler();
 thread.setdefaultuncaughtexceptionhandler(uncaughtexceptionhandler);
 }

 // 创建服务用于捕获崩溃异常
 private class myuncaughtexceptionhandler implements uncaughtexceptionhandler {
 @override
 public void uncaughtexception(thread thread, throwable ex) {
  // 保存错误日志
  savecatchinfo2file(ex);

  // 1秒钟后重启应用
  alarmmanager mgr = (alarmmanager) getsystemservice(context.alarm_service);
  mgr.set(alarmmanager.rtc, system.currenttimemillis() + 1000, restartintent);

  // 关闭当前应用
  finishallactivity();
  finishprogram();
 }
 };

 /**
 * 保存错误信息到文件中
 * 
 * @return 返回文件名称
 */
 private string savecatchinfo2file(throwable ex) {
 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 sb = writer.tostring();
 try {
  dateformat formatter = new simpledateformat("yyyy-mm-dd-hh-mm-ss");
  string time = formatter.format(new date());
  string filename = time + ".txt";
  system.out.println("filename:" + filename);
  if (environment.getexternalstoragestate().equals(environment.media_mounted)) {
  string filepath = environment.getexternalstoragedirectory() + "/hkdownload/" + packgename
   + "/crash/";
  file dir = new file(filepath);
  if (!dir.exists()) {
   if (!dir.mkdirs()) {
   // 创建目录失败: 一般是因为sd卡被拔出了
   return "";
   }
  }
  system.out.println("filepath + filename:" + filepath + filename);
  fileoutputstream fos = new fileoutputstream(filepath + filename);
  fos.write(sb.getbytes());
  fos.close();
  //文件保存完了之后,在应用下次启动的时候去检查错误日志,发现新的错误日志,就发送给开发者
  }
  return filename;
 } catch (exception e) {
  system.out.println("an error occured while writing file..." + e.getmessage());
 }
 return null;
 }

 // ------------------------------activity管理-----------------------//

 // activity管理：从列表中移除activity
 public void removeactivity(activity activity) {
 activitylist.remove(activity);
 }

 // activity管理：添加activity到列表
 public void addactivity(activity activity) {
 activitylist.add(activity);
 }

 // activity管理：结束所有activity
 public void finishallactivity() {
 for (activity activity : activitylist) {
  if (null != activity) {
  activity.finish();
  }
 }
 }

 // 结束线程,一般与finishallactivity()一起使用
 // 例如: finishallactivity;finishprogram();
 public void finishprogram() {
 android.os.process.killprocess(android.os.process.mypid());
 }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。