public class CrashHandler implements UncaughtExceptionHandler {
public static final String TAG = "CrashHandler";
private static CrashHandler INSTANCE = new CrashHandler();
/** 系统默认的UncaughtException处理类 **/
private Thread.UncaughtExceptionHandler mDefaultHandler;
/** 用来存储设备信息和异常信息 **/
private Map<String, String> mInfos = new HashMap<String, String>();
private DateFormat mFormatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
private CrashHandler() {
}
public static CrashHandler getInstance() {
return INSTANCE;
}
public void init( ) {
// 获取系统默认的UncaughtException处理器
mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
// 设置该CrashHandler为程序的默认处理器
Thread.setDefaultUncaughtExceptionHandler(this);
}
/**
* @描述: 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(2000);
} catch (InterruptedException e) {
Logc.e(this.getClass().toString(), e == null ? "" : e.toString());
}
// 重新启动应用
Intent intent = new Intent(QfAdTvApp.getApp().getApplicationContext(), WelcomeActivity.class);
PendingIntent restartIntent =
PendingIntent.getActivity(QfAdTvApp.getApp().getApplicationContext(), 0, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager mgr = (AlarmManager) QfAdTvApp.getApp().getSystemService(Context.ALARM_SERVICE);
mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 1000, restartIntent); // 1秒钟后重启应用
// 退出程序
android.os.Process.killProcess(android.os.Process.myPid());
System.exit(1);
}
}
/**
* @return true:如果处理了该异常信息;否则返回false.
* @throws
* @描述: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.
*/
private boolean handleException(Throwable ex) {
if (null == ex) {
return false;
}
// 使用Toast来显示异信息
// new Thread() {
// @Override
// public void run() {
// Looper.prepare();
// Toast.makeText(QfAdTvApp.getApp(), "程序开了个小差,即将退出.", Toast.LENGTH_LONG);
// Looper.loop();
// }
// }.start();
// 收集设备参数信息
collectDeviceInfo(QfAdTvApp.getApp());
// 保存日志文件
saveCrashInfo2File(ex);
return true;
}
/**
* @描述:收集设备参数信息
*/
private void collectDeviceInfo(Context context) {
try {
PackageManager pm = context.getPackageManager();
PackageInfo pi = pm.getPackageInfo(context.getPackageName(), PackageManager.GET_ACTIVITIES);
if (pi != null) {
String versionName = pi.versionName == null ? "null" : pi.versionName;
String versionCode = pi.versionCode + "";
mInfos.put("versionName", versionName);
mInfos.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);
mInfos.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);
}
}
}
/**
* @throws
* @描述:保存错误信息到文件中 目录/sdcard/qfangadtv/crash/
* @返回类型 void 返回文件名称,便于将文件传送到服务器
*/
private String saveCrashInfo2File(Throwable ex) {
StringBuffer sb = new StringBuffer();
for (Map.Entry<String, String> entry : mInfos.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 = mFormatter.format(new Date());
String fileName = "crash-" + time + "-" + timestamp + ".log";
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
String path = "/sdcard/×××/crash/";
File dir = new File(path);
if (!dir.exists()) {
dir.mkdirs();
}
FileOutputStream fos = new FileOutputStream(path + fileName);
fos.write(sb.toString().getBytes());
fos.close();
}
return fileName;
} catch (Exception e) {
Log.e(TAG, "an error occured while writing file...", e);
}
return null;
}
}
遇到的问题:
如果不主动退出进程,重启后会一直黑屏,所以加入主动杀掉进程: // 退出程序
android.os.Process.killProcess(android.os.Process.myPid());
System.exit(1);
使用方法:
在Application onCreate中调用 CrashHandler.getInstance().init();即可。