Demo 點擊打開鏈接
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;
import android.os.Environment;
import android.util.Log;
import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.lang.reflect.Field;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
/**
* UncaughtException處理類,當程序發生Uncaught異常的時候,有該類來接管程序,並記錄發送錯誤報告.
*
* @author user
*/
public class CrashHandler implements UncaughtExceptionHandler {
public static final String TAG = "CrashHandler";
//系統默認的UncaughtException處理類
private UncaughtExceptionHandler mDefaultHandler;
//CrashHandler實例
private static CrashHandler INSTANCE = new CrashHandler();
//程序的Context對象
private Context mContext;
//用來存儲設備信息和異常信息
private Map<String, String> infos = new HashMap<String, String>();
//用於格式化日期,作爲日誌文件名的一部分
private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
// 日誌地址
private String logPath;
private String dir;
/**
* 保證只有一個CrashHandler實例
*/
private CrashHandler() {
}
/**
* 獲取CrashHandler實例 ,單例模式
*/
public static CrashHandler getInstance() {
return INSTANCE;
}
/**
* 初始化
*
* @param context
*/
public void init(Context context) {
mContext = context;
//獲取系統默認的UncaughtException處理器
mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
//設置該CrashHandler爲程序的默認處理器
Thread.setDefaultUncaughtExceptionHandler(this);
}
/**
* 當UncaughtException發生時會轉入該函數來處理
*/
@Override
public void uncaughtException(Thread thread, final Throwable ex) {
if (!handleException(ex) && mDefaultHandler != null) {
//如果用戶沒有處理則讓系統默認的異常處理器來處理
mDefaultHandler.uncaughtException(thread, ex);
} else {
try {
} catch (Exception e) {
e.printStackTrace();
}
}
}
private void sendMail(Throwable message) {
}
/**
* 自定義錯誤處理,收集錯誤信息 發送錯誤報告等操作均在此完成.
*
* @param ex
* @return true:如果處理了該異常信息;否則返回false.
*/
private boolean handleException(final Throwable ex) {
if (ex == null) {
return false;
}
Log.e(TAG,ex.getMessage());
//收集設備參數信息
collectDeviceInfo(mContext);
//保存日誌文件
String s = saveCrashInfo2File(ex);
Log.i("保存的錯誤文件" , s);
return true;
}
/**
* 收集設備參數信息
*
* @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);
}
}
}
/**
* 保存錯誤信息到文件中
*
* @param ex
* @return 返回文件名稱, 便於將文件傳送到服務器
*/
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);
/* ErrorLogBean errorLogBean = new ErrorLogBean();
errorLogBean.saveInfo((String) SPUtils.get(AppContext.getInstance(), "POLICE_ID", "")
, (String) SPUtils.get(AppContext.getInstance(), "TOKEN", "")
, sb.toString()
, "崩潰記錄");*/
try {
long timestamp = System.currentTimeMillis();
String time = formatter.format(new Date());
String fileName = "BeiJing" + time + "-" + timestamp + ".txt";
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
String path = Environment.getExternalStorageDirectory() + "/陽坤/";
File dir = new File(path);
if (!dir.exists()) {
dir.mkdirs();
}
FileOutputStream fos = new FileOutputStream(path + fileName);
logPath = 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;
}
}