我之前寫過一篇關於bug上傳至服務器的一個功能,也是用的CrashHandler,但是,我覺得吧,估計有的朋友沒有一個好習慣,覺得,AndroidStudio 就可以查看log了,但是,有的時候,log查看的時候,也不是很方便,所以,我建議大家,在寫程序的時候,就直接將bug日誌收集,放到你的程序中去,這樣,不論是後期的bug上傳,或者前期的項目編寫,都不至於在出現bug的時候,找不到問題所在,我這篇文章寫的很簡單,直接拷貝就可以了,也是供大家使用方便!~~
直接上代碼:
1 、首先就是創建CrashHandler類,想要用的朋友,可以直接使用,如果可以的話,還希望大家給點贊評論誇我,嘿嘿
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.Process;
import android.util.Log;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
public class CrashHandler implements Thread.UncaughtExceptionHandler {
private static final String TAG = "CrashHandler";
private static final boolean DEBUG = true;
private static final String PATH = Environment.getExternalStorageDirectory().getPath() + "/CrashTest/log/";
private static final String FILE_NAME = "crash";
private static final String FILE_NAME_SUFFIX = ".log";
private static CrashHandler sInstance = new CrashHandler();
private Thread.UncaughtExceptionHandler mDefaultCrashHandler;
private Context mContext;
private CrashHandler() {
}
public static CrashHandler getsInstance() {
return sInstance;
}
public void init(Context context) {
mDefaultCrashHandler = Thread.getDefaultUncaughtExceptionHandler();
Thread.setDefaultUncaughtExceptionHandler(this);
mContext = context.getApplicationContext();
}
/**
* 這個是最關鍵的函數,當程序中有未被捕獲的異常,系統將會自動調用#uncaughtException方法
*
* @param thread 爲出現未捕獲異常的線程
* @param ex 爲未捕獲的異常,有了這個ex,我們就可以得到異常信息
*/
@Override
public void uncaughtException(Thread thread, Throwable ex) {
try {
//導出異常信息到SD卡中
dumpExceptionToSDCard(ex);
//這裏可以上傳異常信息到服務器,便於開發人員分析日誌從而解決bug
uploadExceptionToServer();
} catch (IOException e) {
e.printStackTrace();
}
ex.printStackTrace();
//如果系統提供了默認的異常處理器,則交給系統去結束程序,否則就由自己結束自己
if (mDefaultCrashHandler != null) {
mDefaultCrashHandler.uncaughtException(thread, ex);
} else {
Process.killProcess(Process.myPid());
}
}
private void dumpExceptionToSDCard(Throwable ex) throws IOException {
//如果SD卡不存在或者無法使用,則無法把異常信息寫入SD卡
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
if (DEBUG) {
Log.w(TAG, "sdcard unmounted,skip dump exception");
return;
}
}
File dir = new File(PATH);
if (!dir.exists()) {
dir.mkdirs();
}
long current = System.currentTimeMillis();
String time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date(current));
File file = new File(PATH + FILE_NAME + (time.replace(" ","_")).replaceAll(":","-") + FILE_NAME_SUFFIX);
try {
PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(file)));
pw.println(time);
dumpPhoneInfo(pw);
pw.println();
ex.printStackTrace(pw);
pw.close();
} catch (Exception e) {
Log.e(TAG, "dump crash info failed");
}
}
private void dumpPhoneInfo(PrintWriter pw) throws PackageManager.NameNotFoundException {
PackageManager pm = mContext.getPackageManager();
PackageInfo pi = pm.getPackageInfo(mContext.getPackageName(), PackageManager.GET_ACTIVITIES);
pw.print("App Version: ");
pw.print(pi.versionName);
pw.print("_");
pw.println(pi.versionCode);
//Android版本號
pw.print("OS Version: ");
pw.print(Build.VERSION.RELEASE);
pw.print("_");
pw.println(Build.VERSION.SDK_INT);
//手機制造商
pw.print("Vendor: ");
pw.println(Build.MANUFACTURER);
//手機型號
pw.print("Model: ");
pw.println(Build.MODEL);
//CPU架構
pw.print("CPU ABI: ");
pw.println(Build.CPU_ABI);
}
private void uploadExceptionToServer() {
//TODO Upload Exception Message To Your Web Server
}
}
2、之後,還有一個步驟就是,在Application裏面進行初始化:
public class DemoApplication extends Application {
public static final String TAG = "demo_DemoApplication";
@Override
public void onCreate() {
super.onCreate();
CrashHandler crashHandler= CrashHandler.getsInstance();
crashHandler.init(this);
}
}
3、到這裏就沒有問題了,有bug會自動收集,並保存到本地sd卡,當然,是需要內存寫入權限的,我相信大家都知道怎麼寫,不知道的可以百度下,很簡單,權限的添加,自己百度會印象深點,對你有幫助的話,就給我點贊,評論誇我哈,謝謝!!~!~!~