flutter
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flutter_file_picker
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adds support for any type of file; 

fixes permission ask recursive loop;
This commit is contained in:
Miguel Ruivo 2018-11-30 16:15:09 +00:00
parent 3edcdf39f8
commit 2aa8ba18f5
8 changed files with 81 additions and 33 deletions
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android/.idea/caches/build_file_checksums.ser
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1
android/.idea/modules.xml
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@ -3,6 +3,7 @@
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/file_picker.iml" filepath="$PROJECT_DIR$/file_picker.iml" />
<module fileurl="file://$PROJECT_DIR$/file_picker.iml" filepath="$PROJECT_DIR$/file_picker.iml" />
</modules>
</component>
</project>

54
android/src/main/java/com/mr/flutter/plugin/filepicker/FilePickerPlugin.java
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@ -31,6 +31,7 @@ public class FilePickerPlugin implements MethodCallHandler {
private static final String permission = Manifest.permission.WRITE_EXTERNAL_STORAGE;
private static Result result;
private static Registrar instance;
private static String fileType;
/** Plugin registration. */
public static void registerWith(Registrar registrar) {
@ -41,6 +42,7 @@ public class FilePickerPlugin implements MethodCallHandler {
instance.addActivityResultListener(new PluginRegistry.ActivityResultListener() {
@Override
public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_CODE && resultCode == Activity.RESULT_OK) {
if (data != null) {
@ -88,47 +90,77 @@ public class FilePickerPlugin implements MethodCallHandler {
return false;
}
});
instance.addRequestPermissionsResultListener(new PluginRegistry.RequestPermissionsResultListener() {
@Override
public boolean onRequestPermissionsResult(int requestCode, String[] strings, int[] grantResults) {
if (requestCode == 0 && grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
startFileExplorer(fileType);
return true;
}
return false;
}
});
}
@Override
public void onMethodCall(MethodCall call, Result result) {
if (call.method.equals("pickPDF")) {
this.result = result;
startFileExplorer();
} else {
this.result = result;
fileType = resolveType(call.method);
if(fileType == null){
result.notImplemented();
} else {
startFileExplorer(fileType);
}
}
private boolean checkPermission() {
private static boolean checkPermission() {
Activity activity = instance.activity();
Log.i(TAG, "Checking permission: " + permission);
return PackageManager.PERMISSION_GRANTED == ContextCompat.checkSelfPermission(activity, permission);
}
private void requestPermission() {
private static void requestPermission() {
Activity activity = instance.activity();
Log.i(TAG, "Requesting permission: " + permission);
String[] perm = { permission };
ActivityCompat.requestPermissions(activity, perm, 0);
}
private void startFileExplorer() {
private String resolveType(String type) {
switch (type){
case "PDF":
return "application/pdf";
case "ANY":
return "*/*";
default:
return null;
}
}
private static void startFileExplorer(String type) {
Intent intent;
if (checkPermission()) {
if(Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT){
intent = new Intent(Intent.ACTION_PICK);
}else{
intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
} else {
intent = new Intent(Intent.ACTION_GET_CONTENT);
}
intent.setType("application/pdf");
intent.setType(type);
intent.addCategory(Intent.CATEGORY_OPENABLE);
instance.activity().startActivityForResult(intent, REQUEST_CODE);
} else {
requestPermission();
startFileExplorer();
}
}

7
example/ios/Runner.xcodeproj/project.pbxproj
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@ -182,6 +182,7 @@
TargetAttributes = {
97C146ED1CF9000F007C117D = {
CreatedOnToolsVersion = 7.3.1;
DevelopmentTeam = KJ6ARNKBG8;
};
};
};
@ -428,6 +429,7 @@
buildSettings = {
ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
DEVELOPMENT_TEAM = KJ6ARNKBG8;
ENABLE_BITCODE = NO;
FRAMEWORK_SEARCH_PATHS = (
"$(inherited)",
@ -439,7 +441,7 @@
"$(inherited)",
"$(PROJECT_DIR)/Flutter",
);
PRODUCT_BUNDLE_IDENTIFIER = com.mr.flutter.plugin.filePickerExample;
PRODUCT_BUNDLE_IDENTIFIER = com.mr.flutter.plugin.filePickerExamples;
PRODUCT_NAME = "$(TARGET_NAME)";
VERSIONING_SYSTEM = "apple-generic";
};
@ -451,6 +453,7 @@
buildSettings = {
ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
DEVELOPMENT_TEAM = KJ6ARNKBG8;
ENABLE_BITCODE = NO;
FRAMEWORK_SEARCH_PATHS = (
"$(inherited)",
@ -462,7 +465,7 @@
"$(inherited)",
"$(PROJECT_DIR)/Flutter",
);
PRODUCT_BUNDLE_IDENTIFIER = com.mr.flutter.plugin.filePickerExample;
PRODUCT_BUNDLE_IDENTIFIER = com.mr.flutter.plugin.filePickerExamples;
PRODUCT_NAME = "$(TARGET_NAME)";
VERSIONING_SYSTEM = "apple-generic";
};

8
example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist Normal file
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@ -0,0 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>IDEDidComputeMac32BitWarning</key>
<true/>
</dict>
</plist>

13
example/ios/Runner/Info.plist
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@ -4,15 +4,8 @@
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>NSCameraUsageDescription</key>
<string>Used to demonstrate image picker plugin</string>
<key>NSMicrophoneUsageDescription</key>
<string>Used to capture audio for image picker plugin</string>
<key>NSPhotoLibraryUsageDescription</key>
<string>Used to demonstrate image picker plugin</string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
@ -29,6 +22,12 @@
<string>$(FLUTTER_BUILD_NUMBER)</string>
<key>LSRequiresIPhoneOS</key>
<true/>
<key>NSCameraUsageDescription</key>
<string>Used to demonstrate image picker plugin</string>
<key>NSMicrophoneUsageDescription</key>
<string>Used to capture audio for image picker plugin</string>
<key>NSPhotoLibraryUsageDescription</key>
<string>Used to demonstrate image picker plugin</string>
<key>UILaunchStoryboardName</key>
<string>LaunchScreen</string>
<key>UIMainStoryboardFile</key>

8
example/lib/main.dart
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@ -11,8 +11,8 @@ class MyApp extends StatefulWidget {
}
class _MyAppState extends State<MyApp> {
String _path = '...';
String _fileName = '...';
String _path = '...';
FileType _pickingType;
void _openFileExplorer() async {
@ -63,6 +63,10 @@ class _MyAppState extends State<MyApp> {
new DropdownMenuItem(
child: new Text('FROM PDF'),
value: FileType.PDF,
),
new DropdownMenuItem(
child: new Text('ANY'),
value: FileType.ANY,
)
],
onChanged: (value) {
@ -85,7 +89,7 @@ class _MyAppState extends State<MyApp> {
style: new TextStyle(fontWeight: FontWeight.bold),
),
new Text(
_path,
_path ?? '...',
textAlign: TextAlign.center,
softWrap: true,
textScaleFactor: 0.85,

23
lib/file_picker.dart
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@ -2,12 +2,18 @@ import 'dart:async';
import 'package:flutter/services.dart';
import 'package:image_picker/image_picker.dart';
import 'package:meta/meta.dart';
enum FileType {
ANY,
PDF,
IMAGE,
CAPTURE,
}
class FilePicker {
static const MethodChannel _channel = const MethodChannel('file_picker');
static Future<String> get _getPDF async => await _channel.invokeMethod('pickPDF');
static Future<String> _getPath(String type) async => await _channel.invokeMethod(type);
static Future<String> _getImage(ImageSource type) async {
var image = await ImagePicker.pickImage(source: type);
@ -15,21 +21,16 @@ class FilePicker {
return image?.path;
}
static Future<String> getFilePath({@required FileType type}) async {
static Future<String> getFilePath({FileType type = FileType.ANY}) async {
switch (type) {
case FileType.PDF:
return _getPDF;
return _getPath('PDF');
case FileType.IMAGE:
return _getImage(ImageSource.gallery);
case FileType.CAPTURE:
return _getImage(ImageSource.camera);
default:
return _getPath('ANY');
}
return '';
}
}
enum FileType {
PDF,
IMAGE,
CAPTURE,
}