My app won’t show the permission dialog when I press the menu item on the emulator. This is after writing the permission check, adding a permission check, requesting permission, and responding to a permission request result. There is still red error on my findImage method (as shown below). My app works find regardless of this error, but it’s just that it doesn’t ask user for permission.
- findImage method
It gives this error: Call requires permission which may be rejected by user: code should explicitly check to see if permission is available (with checkPermission) or explicitly handle a potential SecurityException less… (⌘F1)
This check scans through your code and libraries and looks at the APIs being used, and checks this against the set of permissions required to access those APIs. If the code using those APIs is called at runtime, then the program will crash. Furthermore, for permissions that are revocable (with targetSdkVersion 23), client code must also be prepared to handle the calls throwing an exception if the user rejects the request for permission at runtime.
I was kind of confused about the layout file fragment_loctr.xml. Initially it had
<?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"
tools:context="com.bignerdranch.android.locatr.LocatrActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>The one that I have right now is below. Is this correct?
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
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"
tools:context="com.bignerdranch.android.locatr.LocatrActivity">
<ImageView
android:id="@+id/image"
android:layout_width="150dp"
android:layout_height="150dp"
android:background="@android:color/white"
android:layout_centerInParent="true"/>
</RelativeLayout>