I'm trying to use FileProvider to send an email with an attachment in my application, the FileProvider example works, but when integrating the code to my app does not work, I think it's a problem with appCompat, I leave the error code and my manifest
This line for working appcompat
Manifest
Thanks
This line for working appcompat
B4X:
#Extends: android.support.v7.app.AppCompatActivityManifest
B4X:
'This code will be applied to the manifest file during compilation.
'You do not need to modify it in most cases.
'See this link for for more information: https://www.b4x.com/forum/showthread.php?p=78136
AddManifestText(
<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="28"/>
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
'CreateResourceFromFile(Macro, Themes.DarkTheme)
'End of default text.
'Tema Aplicación
SetApplicationAttribute(android:theme, "@style/MyAppTheme")
CreateResource(values, theme.xml,
<resources>
<style name="MyAppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">#00796b</item>
<item name="colorPrimaryDark">#004d40</item>
<item name="colorAccent">#00796b</item>
<item name="windowNoTitle">true</item>
<item name="windowActionBar">false</item>
<item name="preferenceTheme">@style/PreferenceThemeOverlay.Material</item>
<item name="asp_preferenceIconTint">?colorAccent</item>
<item name="asp_preferenceDialogIconTint">?asp_preferenceIconTint</item>
<item name="windowActionModeOverlay">true</item>
</style>
</resources>)
'************ File Provider ****************
'E-Mail senden ab Android 6+
AddManifestText(<uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"
android:maxSdkVersion="18" />
)
AddApplicationText(
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="$PACKAGE$.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"/>
</provider>
)
CreateResource(xml, provider_paths,
<files-path name="name" path="shared" />
)
'Ende of File Provider
B4X:
java.lang.RuntimeException: Unable to start activity ComponentInfo{cl.deschile.rodal/cl.deschile.rodal.main}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.ContentFrameLayout.setId(int)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3107)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3250)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1947)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7032)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.ContentFrameLayout.setId(int)' on a null object reference
at android.support.v7.app.AppCompatDelegateImpl.createSubDecor(AppCompatDelegateImpl.java:703)
at android.support.v7.app.AppCompatDelegateImpl.ensureSubDecor(AppCompatDelegateImpl.java:518)
at android.support.v7.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:457)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:145)
at cl.deschile.rodal.main.onCreate(main.java:61)
at android.app.Activity.performCreate(Activity.java:7327)
at android.app.Activity.performCreate(Activity.java:7318)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3087)
... 11 moreThanks