Delphi Android file open failure with API 26

I can open files on Android with the Delphi code shown below. But when I compile it at API 26, it gives the error I added in the picture below. How can I solve this problem?

ExtFile := AnsiLowerCase(StringReplace(TPath.GetExtension(yol), '.', '',));
mime := TJMimeTypeMap.JavaClass.getSingleton();
ExtToMime := mime.getMimeTypeFromExtension(StringToJString(ExtFile));
Intent := TJIntent.Create;
Intent.setAction(TJIntent.JavaClass.ACTION_VIEW);
Intent.setDataAndType(StrToJURI('file:' + yol), ExtToMime);
SharedActivity.startActivity(Intent);


Thank you so much for your help. I'm glad that I finally came across this kind of understanding person on this platform. I tried the .pas file you sent. but I see a different error window. I share my codes and the error. thank you so much.

var
ExtFile,yol,deger,id:string;
mime: JMimeTypeMap;
ExtToMime: JString;
Intent: JIntent;
javafile:JFile;
begin
yol:='/sdcard/SkyWiFiDownload/sancak.jpg';
javafile:=TJFile.JavaClass.init(StringToJString(yol));
ExtFile := AnsiLowerCase(StringReplace(TPath.GetExtension(yol), '.', '',));
mime := TJMimeTypeMap.JavaClass.getSingleton();
ExtToMime := mime.getMimeTypeFromExtension(StringToJString(ExtFile));
Intent := TJIntent.Create;
id:=JStringToString(TAndroidHelper.Context.getApplicationContext.
getPackageName) + '.fileprovider';
deger:=JURIToStr(TJFileProvider.JavaClass.getUriForFile(
TAndroidHelper.Context,StringToJString(id),javafile));
Intent.setAction(TJIntent.JavaClass.ACTION_VIEW);
Intent.setFlags(1);
Intent.setDataAndType(StrToJURI(deger), ExtToMime);
SharedActivity.startActivity(Intent);


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1 Answer
1

I've finally come up with the necessary steps to make this work. Firstly, you will need to modify your AndroidManifest.Template.xml file to add a Provider section like this:

...
<application android:persistent="%persistent%"
android:restoreAnyVersion="%restoreAnyVersion%"
android:label="%label%"
android:debuggable="%debuggable%"
android:largeHeap="%largeHeap%"
android:icon="%icon%"
android:theme="%theme%"
android:hardwareAccelerated="%hardwareAccelerated%">
<!-- **** ADD THIS SECTION **** -->
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.embarcadero.yourAppName.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/provider_paths"/>
</provider>

<%application-meta-data%>
<%services%>
...


For the value:

android:authorities="com.embarcadero.yourAppName.fileprovider"


Change: com.embarcadero.yourAppName to whatever your package name is.

You will also need to create a file: provider_paths.xml. Mine looks like this:

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path name="external_files" path="."/>
</paths>


..and add it to your projects deployment using the Deployment Manager, with a Remote Path value of: resxml

Change your Delphi code from:

Intent.setDataAndType(StrToJURI(deger), ExtToMime);


to:

Intent.setDataAndType(TAndroidHelperEx.UriFromFile(javafile), ExtToMime);


TAndroidHelperEx comes from this unit:

https://github.com/DelphiWorlds/KastriFree/blob/master/Core/DW.Android.Helpers.pas

It relies on this unit:

https://github.com/DelphiWorlds/KastriFree/blob/master/API/DW.Androidapi.JNI.FileProvider.pas

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