/
NativeFilePickerExportFragment.java
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/
NativeFilePickerExportFragment.java
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package com.yasirkula.unity;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.Fragment;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.webkit.MimeTypeMap;
import android.widget.Toast;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Locale;
public class NativeFilePickerExportFragment extends Fragment
{
private static final int EXPORT_FILE_CODE = 625441;
public static final String FILES_ID = "NFPE_FILES";
private final NativeFilePickerResultReceiver resultReceiver;
private ArrayList<String> files;
public NativeFilePickerExportFragment()
{
resultReceiver = null;
}
public NativeFilePickerExportFragment( final NativeFilePickerResultReceiver resultReceiver )
{
this.resultReceiver = resultReceiver;
}
@Override
@TargetApi( Build.VERSION_CODES.KITKAT )
public void onCreate( Bundle savedInstanceState )
{
super.onCreate( savedInstanceState );
if( resultReceiver == null )
onActivityResult( EXPORT_FILE_CODE, Activity.RESULT_CANCELED, null );
else
{
files = getArguments().getStringArrayList( FILES_ID );
Intent intent;
if( files.size() == 1 || Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP )
{
// Exporting multiple files isn't supported on this Android version
for( int i = files.size() - 1; i >= 1; i-- )
files.remove( i );
intent = new Intent( Intent.ACTION_CREATE_DOCUMENT );
intent.setType( GetMimeTypeFromFile( files.get( 0 ) ) );
intent.putExtra( Intent.EXTRA_TITLE, new File( files.get( 0 ) ).getName() );
intent.addCategory( Intent.CATEGORY_OPENABLE );
}
else
{
// We won't set MIME type here, we will set it for each file separately inside ExportMultipleFilesToDirectory
intent = new Intent( Intent.ACTION_OPEN_DOCUMENT_TREE );
intent.putExtra( "android.content.extra.SHOW_ADVANCED", true );
intent.putExtra( "android.content.extra.FANCY", true );
intent.putExtra( "android.content.extra.SHOW_FILESIZE", true );
}
intent.addFlags( Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION );
try
{
// MIUI devices have issues with Intent.createChooser on at least Android 11 (#15 and https://stackoverflow.com/questions/67785661/taking-and-picking-photos-on-poco-x3-with-android-11-does-not-work)
if( NativeFilePicker.UseDefaultFilePickerApp || ( Build.VERSION.SDK_INT == 30 && NativeFilePickerUtils.IsXiaomiOrMIUI() ) )
startActivityForResult( intent, EXPORT_FILE_CODE );
else
startActivityForResult( Intent.createChooser( intent, "" ), EXPORT_FILE_CODE );
}
catch( ActivityNotFoundException e )
{
Toast.makeText( getActivity(), "No apps can perform this action.", Toast.LENGTH_LONG ).show();
onActivityResult( EXPORT_FILE_CODE, Activity.RESULT_CANCELED, null );
}
}
}
private String GetMimeTypeFromFile( String file )
{
int extensionStart = file.lastIndexOf( '.' );
if( extensionStart < 0 || extensionStart == file.length() - 1 )
return "application/octet-stream";
String mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension( file.substring( extensionStart + 1 ).toLowerCase( Locale.ENGLISH ) );
return ( mimeType == null || mimeType.length() == 0 ) ? "application/octet-stream" : mimeType;
}
@TargetApi( Build.VERSION_CODES.LOLLIPOP )
private boolean ExportMultipleFilesToDirectory( ArrayList<String> files, Uri directoryUri )
{
NativeFilePickerSAFEntry directory = NativeFilePickerSAFEntry.fromTreeUri( getActivity(), directoryUri );
if( directory == null )
{
Log.e( "Unity", "Couldn't access export directory: " + directoryUri.toString() );
return false;
}
boolean result = true;
for( int i = 0; i < files.size(); i++ )
{
File file = new File( files.get( i ) );
if( !file.exists() )
{
Log.e( "Unity", "Can't export " + files.get( i ) + ", file doesn't exist!" );
continue;
}
NativeFilePickerSAFEntry safFile = directory.createFile( GetMimeTypeFromFile( files.get( i ) ), file.getName() );
if( safFile == null )
{
Log.e( "Unity", "Couldn't create file inside directory: " + directoryUri.toString() + "/" + file.getName() );
result = false;
}
try
{
result &= WriteFileToStream( file, getActivity().getContentResolver().openOutputStream( safFile.getUri() ) );
}
catch( Exception e )
{
Log.e( "Unity", "Exception:", e );
result = false;
}
}
return result;
}
private boolean WriteFileToStream( File file, OutputStream out )
{
try
{
InputStream in = new FileInputStream( file );
try
{
byte[] buf = new byte[1024];
int len;
while( ( len = in.read( buf ) ) > 0 )
out.write( buf, 0, len );
}
finally
{
try
{
in.close();
}
catch( Exception e )
{
Log.e( "Unity", "Exception:", e );
}
}
}
catch( Exception e )
{
Log.e( "Unity", "Exception:", e );
return false;
}
finally
{
try
{
out.close();
}
catch( Exception e )
{
Log.e( "Unity", "Exception:", e );
}
}
return true;
}
@Override
public void onActivityResult( int requestCode, int resultCode, Intent data )
{
if( requestCode != EXPORT_FILE_CODE )
return;
boolean result = false;
if( files == null || files.size() == 0 )
Log.e( "Unity", "Fragment data got reset while exporting files!" );
else if( resultCode != Activity.RESULT_OK || data == null || data.getData() == null )
Log.d( "Unity", "Export operation cancelled" );
else if( files.size() == 1 )
{
File file = new File( files.get( 0 ) );
if( !file.exists() )
Log.e( "Unity", "Can't export " + files.get( 0 ) + ", file doesn't exist!" );
else
{
try
{
result = WriteFileToStream( file, getActivity().getContentResolver().openOutputStream( data.getData() ) );
}
catch( Exception e )
{
Log.e( "Unity", "Exception:", e );
}
}
}
else
result = ExportMultipleFilesToDirectory( files, data.getData() );
if( resultReceiver != null )
resultReceiver.OnFilesExported( result );
getFragmentManager().beginTransaction().remove( this ).commit();
}
}