import android.app.Application;import tes.ray.view.activity.CrashHandler;public class MainApplication extends Application{ @Override public void onCreate() { super.onCreate(); CrashHandler crashHandler = CrashHandler.getInstance(); crashHandler.init(this); }
}
一个CrashHandler类
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.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;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.SimpleDateFormat;import java.util.Date;import java.util.HashMap;import java.util.Map;/** * Created by 2017/7/12. */public class CrashHandler implements UncaughtExceptionHandler { private static final String TAG = "CrashHandler"; private Thread.UncaughtExceptionHandler mDefaultHandler; private static CrashHandler INSTANCE = new CrashHandler(); private Context mContext; private Map<String, String> info = new HashMap<String, String>(); private SimpleDateFormat format = new SimpleDateFormat( "yyyy-MM-dd-HH-mm-ss"); /** 保证只有一个CrashHandler实例 */ private CrashHandler() { } /** 获取CrashHandler实例 ,单例模式 */ public static CrashHandler getInstance() { return INSTANCE; } /** * 初始化 * * @param context */ public void init(Context context) { mContext = context; mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler(); Thread.setDefaultUncaughtExceptionHandler(this); } /** * 当UncaughtException发生时会转入该重写的方法来处理 */ public void uncaughtException(Thread thread, Throwable ex) { if (!handleException(ex) && mDefaultHandler != null) { mDefaultHandler.uncaughtException(thread, ex); } else { try { Thread.sleep(3000); } catch (InterruptedException e) { e.printStackTrace(); } 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. * * @param ex * 异常信息 * @return true 如果处理了该异常信息;否则返回false. */ public boolean handleException(Throwable ex) { if (ex == null) return false; new Thread() { public void run() { Looper.prepare(); Toast.makeText(mContext, "出现闪退了正在把日志保存到sdcard crash目录下",Toast.LENGTH_LONG).show(); Looper.loop(); } }.start(); collectDeviceInfo(mContext); saveCrashInfo2File(ex); return true; } /** * 收集设备参数信息 * * @param context */ public void collectDeviceInfo(Context context) { try { PackageManager pm = context.getPackageManager(); PackageInfo pi = pm.getPackageInfo(context.getPackageName(), PackageManager.GET_ACTIVITIES); if (pi != null) { String versionName = pi.versionName == null ? "null" : pi.versionName; String versionCode = pi.versionCode + ""; info.put("versionName", versionName); info.put("versionCode", versionCode); } } catch (NameNotFoundException e) { e.printStackTrace(); } Field[] fields = Build.class.getDeclaredFields(); for (Field field : fields) { try { field.setAccessible(true); info.put(field.getName(), field.get("").toString()); Log.d(TAG, field.getName() + ":" + field.get("")); } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } } } private String saveCrashInfo2File(Throwable ex) { StringBuffer sb = new StringBuffer(); for (Map.Entry<String, String> entry : info.entrySet()) { String key = entry.getKey(); String value = entry.getValue(); sb.append(key + "=" + value + "\r\n"); } Writer writer = new StringWriter(); PrintWriter pw = new PrintWriter(writer); ex.printStackTrace(pw); Throwable cause = ex.getCause(); while (cause != null) { cause.printStackTrace(pw); cause = cause.getCause(); } pw.close(); String result = writer.toString(); sb.append(result); long timetamp = System.currentTimeMillis(); String time = format.format(new Date()); String fileName = "crash-" + time + "-" + timetamp + ".log"; if (Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED)) { try { File dir = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "crash"); Log.i("CrashHandler", dir.toString()); if (!dir.exists()) dir.mkdir(); FileOutputStream fos = new FileOutputStream(new File(dir, fileName)); fos.write(sb.toString().getBytes()); fos.close(); return fileName; } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } return null; }}
btn_start = (Button) findViewById(R.id.but_home); btn_start.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { data(); } private void data() { TextView texview=null; texview.setText("dsd"); } });