当我有以下布局时，我的import pygame
import serial
import time
ser = serial.Serial('/dev/ttyACM0', 9600)
pygame.mixer.pre_init(channels=6, buffer=1024)
pygame.mixer.init()
guit_let = ["e", "a"]
guitar_notes = [pygame.mixer.Sound("notes/" + letter + ".wav") for letter in guit_let]
def guitar(i):
guitar_notes[i].play()
while True:
if ser.in_waiting > 0:
line = ser.readline().strip()
value = str(line.decode('utf-8'))
#value = str(line.decode('ascii'))
#a = int(value)
if value == '0':
guitar(0)
print(value)
else:
guitar(1)
print(value)
的{{1}}永远不会被调用：
OnTouchListener以及我的活动中的以下代码：
ViewPager如果删除<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.constraint.ConstraintLayout xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipChildren="false"
android:clipToPadding="false"
tools:context=".MainActivity">
<android.support.v4.view.ViewPager
android:id="@+id/vpPages"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.constraint.ConstraintLayout>
<!-- If I remove this, everything is fine -->
<FrameLayout
android:id="@+id/navDrawerRoot"
android:layout_width="220dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:baselineAligned="false"
android:fitsSystemWindows="false"
android:visibility="gone"/>
</android.support.v4.widget.DrawerLayout>
，则会按预期调用override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
vpPages.setOnTouchListener { v, event ->
Log.e("TAG", "Touched")
false
}
}
。有谁能解释为什么？我可以对FrameLayout做些什么，以免它干扰OnTouchListener的触摸？