【发布时间】:2018-03-02 16:09:50
【问题描述】:
这里是我的 xml 布局文件:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.DrawerLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent">
</android.support.v4.widget.DrawerLayout>
</android.support.constraint.ConstraintLayout>
但是当我启动我的 Android 应用程序时,我得到了错误(在运行时):
E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.IllegalArgumentException: DrawerLayout must be measured with MeasureSpec.EXACTLY.
at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:994)
at android.view.View.measure(View.java:15848)
at android.support.constraint.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:934)
【问题讨论】:
标签: android navigation-drawer android-constraintlayout