java为什么要多次使用通知。应用程序崩溃?
我正在制作一个项目,如果setsetLuminLevels()
{
这是我的主要任务
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
NotificationCompat.Builder lumin =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.index)
.setContentTitle("Greenhouse Warning:")
.setContentText("Luminosity Out of range!");
NotificationCompat.Builder humid =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.index)
.setContentTitle("Greenhouse Warning:")
.setContentText("Humidity Out of range!");
NotificationCompat.Builder temp =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.index)
.setContentTitle("Greenhouse Warning:")
.setContentText("Temperature Out of range!");
int mNotificationId1 = 001;
int mNotificationId2 = 002;
int mNotificationId3 = 003;
NotificationManager mNotifyMgr1 = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
NotificationManager mNotifyMgr2 = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
NotificationManager mNotifyMgr3 = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
//set and check the displayed levels
if(setLuminLevels()) mNotifyMgr1.notify(mNotificationId1, lumin.build());
if(setHumidLevels()) mNotifyMgr2.notify(mNotificationId2, humid.build());
if(setTempLevels() ) mNotifyMgr3.notify(mNotificationId3, temp.build() );
}
为什么这段代码会使我的应用程序崩溃?如何使用多重通知
事故报告:
--------- beginning of crash
07-20 14:23:57.136 2645-2645/com.joanjantz_lee.greenhouse E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.joanjantz_lee.greenhouse, PID: 2645
java.lang.NumberFormatException: For input string: "26.57"
at java.lang.Integer.parseInt(Integer.java:521)
at java.lang.Integer.parseInt(Integer.java:556)
at com.joanjantz_lee.greenhouse.MainActivity$3.onDataChange(MainActivity.java:206)
at com.google.安卓.gms.internal.zzbmz.zza(Unknown Source)
at com.google.安卓.gms.internal.zzbnz.zzYj(Unknown Source)
at com.google.安卓.gms.internal.zzboc$1.run(Unknown Source)
at 安卓.os.Handler.handleCallback(Handler.java:751)
at 安卓.os.Handler.dispatchMessage(Handler.java:95)
at 安卓.os.Looper.loop(Looper.java:154)
at 安卓.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.安卓.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.安卓.internal.os.ZygoteInit.main(ZygoteInit.java:776)
# 1 楼答案
您有一个正在调用的onDataChange事件的侦听器,并且正在尝试将字符串解析为整数。字符串包含的“26.57”不是有效的整数
看看你主要活动的第206行。爪哇
PS:user1779222是对的。NotificationManager是一个单例,因此您只需要对它进行一次引用