LinearLayout and FrameLayout multiple errors in Android Studio
So I am currently making this app and this is the activity_maps.xml file that I am using/coding:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:orientation="vertical">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
<FrameLayout xmlns:android="https://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent">
<Button
android:id="@+id/btnRestaurant"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Nearby Restaurants"
android:visibility="visible" />
<Button
android:id="@+id/btnHospital"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Nearby Hospitals"
android:visibility="visible" />
<Button
android:id="@+id/btnSchool"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Nearby Schools"
android:visibility="visible" />
</FrameLayout>
The errors which are showing are that whenever I hover my mouse above linearlayout it shows: layout_height attribute should be defined, layout_width attribute should be defined, Element LinearLayout doesn't have required attribute layout_height, Element LinearLayout doesn't have required attribute layout_width, Wrong orientation?No orientation specified, and the default is horizontal, yet this layout has multiple children where at least one has layout_width="match_parent". Then these are the errors when I hover above FrameLayout: layout_height attribute should be defined, layout_width attribute should be defined. These are the errors when I hover above the button tag: layout_height attribute should be defined, layout_width attribute should be defined. These are the errors when I hover above abdroid:id="@+id/btnwhatever", android:text="whatever", android:visibility="visible" tags they all say: Unexpected namespace prefix "android" found for tag Button. When I change the layout of the app to this:
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="350dp"
android:layout_height="500dp"
<FrameLayout xmlns:android="https://schemas.android.com/apk/res/android"
android:layout_height="125dp"
android:layout_width="75dp">
<LinearLayout
xmlns:android="https://schemas.android.com/apk/res/android"
xmlns:tools="https://schemas.android.com/tools"
android:layout_height="75dp"
android:layout_width="100dp"
android:orientation="vertical">
<Button
android:id="@+id/btnRestaurant"
android:layout_height="10dp"
android:layout_width="10dp"
android:text="Nearby Restaurants"
android:visibility="visible" />
<Button
android:id="@+id/btnHospital"
android:layout_height="10dp"
android:layout_width="10dp"
android:text="Nearby Hospitals"
android:visibility="visible" />
<Button
android:id="@+id/btnSchool"
android:layout_height="10dp"
android:layout_width="10dp"
android:text="Nearby Schools"
android:visibility="visible" />
</LinearLayout>
</FrameLayout>
However when I do that layout which shows no errors and then I open the map it says on the logcat: java.lang.RuntimeException: Binary XML file line #0: You must supply a layout_width attribute Please help, Thank you. PS I just took out the tools:context="" tag in the fragment for posting
As Mike said and also remove repeated xmlns xmlns:android="https://schemas.android.com/apk/res/android" from FrameLayout tag. Here is the code that I have tested:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:orientation="vertical">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"></fragment>
<FrameLayout
android:layout_height="match_parent"
android:layout_width="match_parent">
<Button
android:id="@+id/btnRestaurant"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Nearby Restaurants"
android:visibility="visible" />
<Button
android:id="@+id/btnHospital"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Nearby Hospitals"
android:visibility="visible" />
<Button
android:id="@+id/btnSchool"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Nearby Schools"
android:visibility="visible" />
</FrameLayout>
</LinearLayout>