版权声明：转载请@我原创地址 https://blog.csdn.net/weixin_39706415/article/details/85054185
工具类
package me.maxd.demo.utils;
import android.annotation.SuppressLint;
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.os.Looper;
import android.util.Log;
import android.widget.Toast;
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;
/**
* UncaughtExceptionHandler：线程未捕获异常控制器是用来处理未捕获异常的。
* 如果程序出现了未捕获异常默认情况下则会出现强行关闭对话框
* 实现该接口并注册为程序中的默认未捕获异常处理
* 这样当未捕获异常发生时，就可以做些异常处理操作
* 例如：收集异常信息，发送错误报告 等。
* <p>
* UncaughtException处理类,当程序发生Uncaught异常的时候,由该类来接管程序,并记录发送错误报告.
*/
public class CrashHandler implements UncaughtExceptionHandler {
private static final String TAG = "CrashHandler";
// 系统默认的UncaughtException处理类
private UncaughtExceptionHandler mDefaultHandler;
// CrashHandler实例
@SuppressLint("StaticFieldLeak")
private static CrashHandler INSTANCE = new CrashHandler();
// 程序的Context对象
private Context mContext;
// 用来存储设备信息和异常信息
private Map<String, String> infos = new HashMap<String, String>();
// 用于格式化日期,作为日志文件名的一部分
@SuppressLint("SimpleDateFormat")
private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH-mm-ss SSS");
private CrashHandler() {
}
/**
* 获取CrashHandler实例 ,单例模式
*
* @return the instance
*/
public static CrashHandler getInstance() {
return INSTANCE;
}
/**
* 初始化
*
* @param context the context
*/
public void init(Context context) {
mContext = context;
// 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);
}
/**
* 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) {
Log.e(TAG, "error : ", e);
}
// SPUtils.getInstance().setLocalString("crash","");
//SPUtils.getInstance().setLocalString("crash","0","crash");
/* Intent intent = new Intent(MyApplication.getAppContext(), WelcomeActivity.class);
@SuppressLint("WrongConstant") PendingIntent restartIntent = PendingIntent.getActivity(MyApplication.getAppContext(), 0, intent,
Intent.FLAG_ACTIVITY_NEW_TASK);
//退出程序
AlarmManager mgr = (AlarmManager)MyApplication.getAppContext().getSystemService(Context.ALARM_SERVICE);
assert mgr != null;
mgr.set(AlarmManager.RTC, System.currentTimeMillis()+200,
restartIntent); // 1秒钟后重启应用*/
// 退出程序
android.os.Process.killProcess(android.os.Process.myPid());
System.exit(1);
}
}
/**
* 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.
*
* @return true:如果处理了该异常信息;否则返回false.
*/
private boolean handleException(Throwable ex) {
if (ex == null) {
return false;
}
Log.e(TAG, "log : ", ex);
// 使用Toast来显示异常信息
new Thread() {
@Override
public void run() {
Looper.prepare();
android.widget.Toast.makeText(mContext, "很抱歉,程序出现异常。", Toast.LENGTH_LONG).show();
Looper.loop();
}
}.start();
// 收集设备参数信息
collectDeviceInfo(mContext);
// 保存日志文件
//saveCrashInfo2File(ex);
return true;
}
/**
* 收集设备参数信息
*
*/
private 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);
}
}
}
/**
* 保存错误信息到文件中
*
* @param ex
* @return 返回文件名称, 便于将文件传送到服务器
*/
private void 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).append("=").append(value).append("\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 {
String time = formatter.format(new Date());
String fileName = time + ".txt";
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
File cacheDir = mContext.getCacheDir();
if (!cacheDir.exists()) {
cacheDir.mkdirs();
}
FileOutputStream fos = new FileOutputStream("WeNet" + fileName);
fos.write(sb.toString().getBytes("UTF-8"));
fos.close();
}
} catch (Exception e) {
Log.e(TAG, "an error occured while writing file...", e);
}
}
}
使用说明
请在application中初始化
