切到后台然后又打开游戏就游戏闪退

java.lang.NumberFormatException: empty String

at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1842)

at sun.misc.FloatingDecimal.parseDouble(FloatingDecimal.java:110)

at java.lang.Double.parseDouble(Double.java:538)

at com.gjyndyz.zdjm.数据刷新(zdjm.java:2228)

at com.gjyndyz.zdjm.玩家攻击(zdjm.java:1533)

at com.gjyndyz.zdjm$7$6.run(zdjm.java:603)

at android.os.Handler.handleCallback(Handler.java:955)

at android.os.Handler.dispatchMessage(Handler.java:102)

at android.os.Looper.loopOnce(Looper.java:206)

at android.os.Looper.loop(Looper.java:296)

at android.app.ActivityThread.main(ActivityThread.java:9024)

at java.lang.reflect.Method.invoke(Native Method)

at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:569)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:976)