Android UncaughtExceptionHandler捕获crash的全局异常

Android App在crash的时候可以做一些操作，比方说记录异常文件并上传到服务器，或者接入类似腾讯bugly的异常分析平台，一个简单的做法就是前者，实现的代码如下：

package com.duoyin.stock.activity;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 com.duoyin.stock.util.HAUtils;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;/** * Created by yeh on 2016/7/4. */public class CrashHandler implements Thread.UncaughtExceptionHandler {    private static final String TAG = CrashHandler.class.getName();    private static final boolean DEBUG = true;    private static final String PATH = Environment.getExternalStorageDirectory().getPath() + "/yehTest/log/";// log path    private static final String FILE_NAME = "crash";    private static final String FILE_NAME_SUFFIX = ".trace";    private static CrashHandler sInstance = new CrashHandler();    // 系统默认的异常处理（默认情况下，系统会终止当前的异常程序）    private Thread.UncaughtExceptionHandler mDefaultCrashHandler;    private Context mContext;    private CrashHandler() {    }    public static CrashHandler getInstance() {        return sInstance;    }    public void init(Context context) {        mDefaultCrashHandler = Thread.getDefaultUncaughtExceptionHandler();        Thread.setDefaultUncaughtExceptionHandler(this);        mContext = context.getApplicationContext();    }    @Override    public void uncaughtException(Thread thread, Throwable ex) {        try {            HAUtils.showMsg(mContext, "呃呃~~程序crash了~~~");            // 导出当前的错误信息到sdcard            dumpExceptionToSDCard(ex);            uploadExceptionToServer();        } catch (Exception e) {            e.printStackTrace();        }        ex.printStackTrace();        if (mDefaultCrashHandler != null) {            mDefaultCrashHandler.uncaughtException(thread, ex);        } else {            Process.killProcess(Process.myPid());        }    }    /**     * 上传异常到服务器     */    private void uploadExceptionToServer() {    }    /**     * 导出信息到SDCard     *     * @param ex     */    private void dumpExceptionToSDCard(Throwable ex) {        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {            if (DEBUG) {                Log.w(TAG, "sdcard unmounted,skip dump exception");            }        }        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 + FILE_NAME_SUFFIX);        if (!file.exists()) {            file.mkdir();        }        try {            PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(file)));            pw.println(time);            // 导出手机信息            dumpPhoneInfo(pw);            pw.println();            // 导出异常的调用栈信息            ex.printStackTrace(pw);        } catch (Exception e) {            Log.e(TAG, "dump crash info failed");        }    }    private void dumpPhoneInfo(PrintWriter pw) throws PackageManager.NameNotFoundException {        //应用的版本名称和版本号        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版本号        pw.print("OS Version: ");        pw.print(Build.VERSION.RELEASE);        pw.print("_");        pw.println(Build.VERSION.SDK_INT);        //手机制造商        pw.print("Vendor: ");        pw.println(Build.MANUFACTURER);        //手机型号        pw.print("Model: ");        pw.println(Build.MODEL);        //cpu架构        pw.print("CPU ABI: ");        pw.println(Build.CPU_ABI);    }}

另外因为是全局操作需要在Application中调用如下的操作即可：

CrashHandler crashHandler = CrashHandler.getInstance();crashHandler.init(this);

参考了任玉刚博客：

http://blog.csdn.net/singwhatiwanna/article/details/17289479