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 java.io.File;
import java.io.FileOutputStream;
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;
/**
* 异常管理类
* <p/>
* Created by imtianx on 2016-7-10.
*/
public class CrashHandler implements Thread.UncaughtExceptionHandler {
/**
* 系统默认UncaughtExceptionHandler
*/
private Thread.UncaughtExceptionHandler mDefaultHandler;
/**
* context
*/
private Context mContext;
/**
* 存储异常和参数信息
*/
private Map<String, String> paramsMap = new HashMap<>();
/**
* 格式化时间
*/
private SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
private String TAG = this.getClass().getSimpleName();
private static CrashHandler mInstance;
private CrashHandler() {
}
/**
* 获取CrashHandler实例
*/
public static synchronized CrashHandler getInstance() {
if (null == mInstance) {
mInstance = new CrashHandler();
}
return mInstance;
}
public void init(Context context) {
mContext = context;
mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
//设置该CrashHandler为系统默认的
Thread.setDefaultUncaughtExceptionHandler(this);
}
/**
* uncaughtException 回调函数
*/
@Override
public void uncaughtException(Thread thread, Throwable ex) {
if (!handleException(ex) && mDefaultHandler != null) {
//如果自己没处理交给系统处理
mDefaultHandler.uncaughtException(thread, ex);
} else {
//自己处理
try {//延迟3秒杀进程
Thread.sleep(2000);
} catch (InterruptedException e) {
Log.e(TAG, "error : ", e);
}
//退出程序
AppManager.getAppManager().AppExit(mContext);
}
}
/**
* 收集错误信息.发送到服务器
*
* @return 处理了该异常返回true, 否则false
*/
private boolean handleException(Throwable ex) {
if (ex == null) {
return false;
}
//收集设备参数信息
collectDeviceInfo(mContext);
//添加自定义信息
addCustomInfo();
//使用Toast来显示异常信息
new Thread() {
@Override
public void run() {
Looper.prepare();
//在此处处理出现异常的情况
Toast.makeText(mContext, "程序开小差了呢..", Toast.LENGTH_SHORT).show();
Looper.loop();
}
}.start();
//保存日志文件
saveCrashInfo2File(ex);
return true;
}
/**
* 收集设备参数信息
*
* @param ctx
*/
public void collectDeviceInfo(Context ctx) {
//获取versionName,versionCode
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 + "";
paramsMap.put("versionName", versionName);
paramsMap.put("versionCode", versionCode);
}
} catch (PackageManager.NameNotFoundException e) {
Log.e(TAG, "an error occured when collect package info", e);
}
//获取所有系统信息
Field[] fields = Build.class.getDeclaredFields();
for (Field field : fields) {
try {
field.setAccessible(true);
paramsMap.put(field.getName(), field.get(null).toString());
} catch (Exception e) {
Log.e(TAG, "an error occured when collect crash info", e);
}
}
}
/**
* 添加自定义参数
*/
private void addCustomInfo() {
Log.i(TAG, "addCustomInfo: 程序出错了...");
}
/**
* 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 String saveCrashInfo2File(Throwable ex) {
StringBuffer sb = new StringBuffer();
for (Map.Entry<String, String> entry : paramsMap.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 = format.format(new Date());
String fileName = "crash-" + time + "-" + timestamp + ".log";
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/crash/";
File dir = new File(path);
if (!dir.exists()) {
dir.mkdirs();
}
FileOutputStream fos = new FileOutputStream(path + fileName);
fos.write(sb.toString().getBytes());
Log.i(TAG, "saveCrashInfo2File: "+sb.toString());
fos.close();
}
return fileName;
} catch (Exception e) {
Log.e(TAG, "an error occured while writing file...", e);
}
return null;
}
}
