package ml.puredark.hviewer.core;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Environment;
import android.os.Looper;
import android.util.Log;
import android.widget.Toast;
import com.umeng.analytics.MobclickAgent;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.reflect.Field;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import ml.puredark.hviewer.HViewerApplication;
import ml.puredark.hviewer.helpers.Logger;
import ml.puredark.hviewer.utils.EmailUtil;
import ml.puredark.hviewer.utils.SharedPreferencesUtil;
import ml.puredark.hviewer.utils.SimpleFileUtil;
/**
* @author Stay
* 在Application中统一捕获异常，保存到文件中下次再打开时上传
*/
public class CrashHandler implements Thread.UncaughtExceptionHandler {
/**
* CrashHandler实例
*/
private static CrashHandler INSTANCE;
/**
* 系统默认的UncaughtException处理类
*/
private Thread.UncaughtExceptionHandler mDefaultHandler;
/**
* 程序的Context对象
*/
private Context mContext;
private Map<String, String> infos = new HashMap<>();
/**
* 保证只有一个CrashHandler实例
*/
private CrashHandler() {
}
/**
* 获取CrashHandler实例 ,单例模式
*/
public static CrashHandler getInstance() {
if (INSTANCE == null) {
INSTANCE = new CrashHandler();
}
return INSTANCE;
}
/**
* 初始化,注册Context对象,
* 获取系统默认的UncaughtException处理器,
* 设置该CrashHandler为程序的默认处理器
*
* @param ctx
*/
public void init(Context ctx) {
mContext = ctx;
mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
Thread.setDefaultUncaughtExceptionHandler(this);
boolean unuploadedLog = (boolean) SharedPreferencesUtil.getData(mContext, "unupload_log", false);
final String filePath = (String) SharedPreferencesUtil.getData(mContext, "unupload_log_file_path", "");
if (unuploadedLog) {
final File file = new File(filePath);
if (file.exists()) {
new Thread(new Runnable() {
@Override
public void run() {
if (!HViewerApplication.DEBUG) {
EmailUtil.sendEmail(EmailUtil.fromEmail, "v" + HViewerApplication.getVersionName() + " " + file.getName(),
SimpleFileUtil.readString(filePath, "utf-8"));
} else
SharedPreferencesUtil.saveData(mContext, "unupload_log", false);
}
}).start();
} else {
SharedPreferencesUtil.saveData(mContext, "unupload_log", false);
}
}
}
/**
* 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 { //如果自己处理了异常，则不会弹出错误对话框，则需要手动退出app
if (!(ex instanceof OutOfMemoryError)) {
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
}
if (!HViewerApplication.DEBUG) {
MobclickAgent.onKillProcess(mContext);
android.os.Process.killProcess(android.os.Process.myPid());
System.exit(10);
} else
mDefaultHandler.uncaughtException(thread, ex);
}
}
}
/**
* 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.
* 开发者可以根据自己的情况来自定义异常处理逻辑
*
* @return true代表处理该异常，不再向上抛异常，
* false代表不处理该异常(可以将该log信息存储起来)然后交给上层(这里就到了系统的异常处理)去处理，
* 简单来说就是true不会弹出那个错误提示框，false就会弹出
*/
private boolean handleException(final Throwable ex) {
if (ex == null) {
return false;
}
if (ex instanceof OutOfMemoryError) {
// OOM一般是解码Bitmap造成的，不影响程序继续运行
return true;
}
//使用Toast来显示异常信息
new Thread() {
@Override
public void run() {
Looper.prepare();
Toast.makeText(mContext, "程序出错，即将退出，报告已发送", Toast.LENGTH_LONG).show();
//添加信息发送或本地保存
getMobileInfo();//获取手机信息
getVersionInfo();//获取版本信息
getErrorInfo(ex);//获取错误信息
saveInfo2File();
Looper.loop();
}
}.start();
if (HViewerApplication.DEBUG)
ex.printStackTrace();
Logger.d("CrashHandler", "catched");
MobclickAgent.reportError(mContext, ex);
return true;
}
/**
* 获取异常信息
*
* @param e
* @return 异常信息
*/
private void getErrorInfo(Throwable e) {
Writer writer = new StringWriter();
PrintWriter pw = new PrintWriter(writer);
e.printStackTrace(pw);
pw.flush();
String error = writer.toString();
infos.put("error information", error);
try {
pw.close();
writer.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
/**
* 获取设备信息
*
* @return
*/
private String getMobileInfo() {
StringBuffer sb = new StringBuffer();
//通过反射获取设备信息
try {
Field[] fields = Build.class.getDeclaredFields();
for (Field field : fields) {
field.setAccessible(true);
infos.put(field.getName(), field.get(null).toString());
}
} catch (IllegalArgumentException e) {
e.printStackTrace();
Log.e("UncaughtHandler", "has IllegalArgument error at method 'getMobileInfo()'");
} catch (IllegalAccessException e) {
e.printStackTrace();
Log.e("UncaughtHandler", "has IllegalAccess error at method 'getMobileInfo()'");
}
return sb.toString();
}
/**
* 获取手机
*
* @return
*/
private void getVersionInfo() {
try {
PackageManager pm = mContext.getPackageManager();
PackageInfo pi = pm.getPackageInfo(mContext.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 (Exception e) {
e.printStackTrace();
Log.e("UncaughtHandler", "has error at method 'getVersionInfo()'");
}
}
private void saveInfo2File() {
StringBuffer buffer = new StringBuffer();
for (Map.Entry<String, String> entry : infos.entrySet()) {
buffer.append(entry.getKey() + " = " + entry.getValue());
buffer.append("\n");
}
String time = new SimpleDateFormat("yyyy-MM-dd-hh-mm-ss").format(new Date(System.currentTimeMillis()));
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
String path = mContext.getCacheDir().getAbsolutePath();
String name = "crash-" + time + ".log";
String filePath = path + File.separator + name;
SimpleFileUtil.createIfNotExist(filePath);
try {
SimpleFileUtil.writeString(filePath, buffer.toString(), "utf-8");
SharedPreferencesUtil.saveData(mContext, "unupload_log", true);
SharedPreferencesUtil.saveData(mContext, "unupload_log_file_path", filePath);
Logger.d("CrashHandler", "get");
} catch (Exception e) {
e.printStackTrace();
Logger.e("UncaughtHandler", "an error occured while writing file...", e);
}
}
}
}