Add example project at RN >= 60

.eslintrc.js

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+module.exports = {
+  root: true,
+  extends: '@react-native-community',
+};

.flowconfig

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+[ignore]
+; We fork some components by platform
+.*/*[.]android.js
+
+; Ignore "BUCK" generated dirs
+<PROJECT_ROOT>/\.buckd/
+
+; Ignore unexpected extra "@providesModule"
+.*/node_modules/.*/node_modules/fbjs/.*
+
+; Ignore duplicate module providers
+; For RN Apps installed via npm, "Libraries" folder is inside
+; "node_modules/react-native" but in the source repo it is in the root
+node_modules/react-native/Libraries/react-native/React.js
+
+; Ignore polyfills
+node_modules/react-native/Libraries/polyfills/.*
+
+; These should not be required directly
+; require from fbjs/lib instead: require('fbjs/lib/warning')
+node_modules/warning/.*
+
+; Flow doesn't support platforms
+.*/Libraries/Utilities/HMRLoadingView.js
+
+[untyped]
+.*/node_modules/@react-native-community/cli/.*/.*
+
+[include]
+
+[libs]
+node_modules/react-native/Libraries/react-native/react-native-interface.js
+node_modules/react-native/flow/
+
+[options]
+emoji=true
+
+esproposal.optional_chaining=enable
+esproposal.nullish_coalescing=enable
+
+module.file_ext=.js
+module.file_ext=.json
+module.file_ext=.ios.js
+
+module.system=haste
+module.system.haste.use_name_reducers=true
+# get basename
+module.system.haste.name_reducers='^.*/\([a-zA-Z0-9$_.-]+\.js\(\.flow\)?\)$' -> '\1'
+# strip .js or .js.flow suffix
+module.system.haste.name_reducers='^\(.*\)\.js\(\.flow\)?$' -> '\1'
+# strip .ios suffix
+module.system.haste.name_reducers='^\(.*\)\.ios$' -> '\1'
+module.system.haste.name_reducers='^\(.*\)\.android$' -> '\1'
+module.system.haste.name_reducers='^\(.*\)\.native$' -> '\1'
+module.system.haste.paths.blacklist=.*/__tests__/.*
+module.system.haste.paths.blacklist=.*/__mocks__/.*
+module.system.haste.paths.whitelist=<PROJECT_ROOT>/node_modules/react-native/Libraries/.*
+module.system.haste.paths.whitelist=<PROJECT_ROOT>/node_modules/react-native/RNTester/.*
+module.system.haste.paths.whitelist=<PROJECT_ROOT>/node_modules/react-native/IntegrationTests/.*
+module.system.haste.paths.blacklist=<PROJECT_ROOT>/node_modules/react-native/Libraries/react-native/react-native-implementation.js
+module.system.haste.paths.blacklist=<PROJECT_ROOT>/node_modules/react-native/Libraries/Animated/src/polyfills/.*
+
+munge_underscores=true
+
+module.name_mapper='^[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\)$' -> 'RelativeImageStub'
+
+suppress_type=$FlowIssue
+suppress_type=$FlowFixMe
+suppress_type=$FlowFixMeProps
+suppress_type=$FlowFixMeState
+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(<VERSION>\\)? *\\(site=[a-z,_]*react_native\\(_ios\\)?_\\(oss\\|fb\\)[a-z,_]*\\)?)\\)
+suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(<VERSION>\\)? *\\(site=[a-z,_]*react_native\\(_ios\\)?_\\(oss\\|fb\\)[a-z,_]*\\)?)\\)?:? #[0-9]+
+suppress_comment=\\(.\\|\n\\)*\\$FlowExpectedError
+
+[lints]
+sketchy-null-number=warn
+sketchy-null-mixed=warn
+sketchy-number=warn
+untyped-type-import=warn
+nonstrict-import=warn
+deprecated-type=warn
+unsafe-getters-setters=warn
+inexact-spread=warn
+unnecessary-invariant=warn
+signature-verification-failure=warn
+deprecated-utility=error
+
+[strict]
+deprecated-type
+nonstrict-import
+sketchy-null
+unclear-type
+unsafe-getters-setters
+untyped-import
+untyped-type-import
+
+[version]
+^0.98.0

.gitattributes

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+*.pbxproj -text

.gitignore

@@ -21,6 +21,7 @@ DerivedData
 *.ipa
 *.xcuserstate
 project.xcworkspace
+Pods
 
 # Android/IntelliJ
 #
@@ -29,8 +30,6 @@ build/
 .gradle
 local.properties
 *.iml
-gradlew
-gradlew.bat
 android/gradle/wrapper/
 
 # node.js

.npmignore

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+example

.watchmanconfig

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+{}

babel.config.js

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+module.exports = {
+  presets: ['module:metro-react-native-babel-preset'],
+};

example/.buckconfig

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+
+[android]
+  target = Google Inc.:Google APIs:23
+
+[maven_repositories]
+  central = https://repo1.maven.org/maven2

example/App.js

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+/**
+ * Sample React Native App
+ * https://github.com/facebook/react-native
+ *
+ * @format
+ * @flow
+ */
+
+import React, { Fragment } from 'react';
+import { Button, SafeAreaView, StatusBar,Platform } from 'react-native';
+import DocumentPicker from '../'
+
+
+const App = () => {
+  return (
+    <Fragment>
+      <StatusBar barStyle="dark-content" />
+      <SafeAreaView>
+        <Button
+          title={'popup test'}
+          onPress={
+            async ()=> {
+              try {
+                const res = await DocumentPicker.pick({
+                  type: [DocumentPicker.types.images],
+                });
+                console.log(
+                  res.uri,
+                  res.type, // mime type
+                  res.name,
+                  res.size
+                );
+                let result = await fetch(res.uri)
+                const blob = await result.blob()
+                console.log(blob);
+                console.log(result)
+              } catch (err) {
+                console.error(err)
+                if (DocumentPicker.isCancel(err)) {
+                  // User cancelled the picker, exit any dialogs or menus and move on
+                } else {
+                  throw err;
+                }
+              }
+            }
+          }
+        />
+      </SafeAreaView>
+    </Fragment>
+  );
+};
+
+export default App;

example/README.md

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+#How to Check
+
+Define `projectRoot` is `react-native-document-picker` direcotry
+
+## ios
+
+```shell
+# at projectRoot
+yarn install
+# at projectRoot/example/ios
+pod install
+# at projectRoot
+yarn start
+```
+
+And in Xcode, change provisioning file with setting your team. Then, run button with example scheme.
+
+## android
+
+We need settings of debug.keystore and emulator setting see if [failure install](https://stackoverflow.com/questions/42706286/application-installation-failed-install-failed-verification-failure) or [empty debug keystore](https://stackoverflow.com/questions/9516881/deleted-debug-keystore-file-how-do-i-generate-it-again)
+
+```shell
+# at projectRoot
+yarn install
+# at projectRoot
+npx react-native run-android --root example
+```
+
+if some errors occur, these may be due to gradle settings or versions, emulator settings, lost debug.keystore, or path of command execution wrong.

example/__tests__/App-test.js

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+/**
+ * @format
+ */
+
+import 'react-native';
+import React from 'react';
+import App from '../App';
+
+// Note: test renderer must be required after react-native.
+import renderer from 'react-test-renderer';
+
+it('renders correctly', () => {
+  renderer.create(<App />);
+});

example/android/app/_BUCK

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+# To learn about Buck see [Docs](https://buckbuild.com/).
+# To run your application with Buck:
+# - install Buck
+# - `npm start` - to start the packager
+# - `cd android`
+# - `keytool -genkey -v -keystore keystores/debug.keystore -storepass android -alias androiddebugkey -keypass android -dname "CN=Android Debug,O=Android,C=US"`
+# - `./gradlew :app:copyDownloadableDepsToLibs` - make all Gradle compile dependencies available to Buck
+# - `buck install -r android/app` - compile, install and run application
+#
+
+load(":build_defs.bzl", "create_aar_targets", "create_jar_targets")
+
+lib_deps = []
+
+create_aar_targets(glob(["libs/*.aar"]))
+
+create_jar_targets(glob(["libs/*.jar"]))
+
+android_library(
+    name = "all-libs",
+    exported_deps = lib_deps,
+)
+
+android_library(
+    name = "app-code",
+    srcs = glob([
+        "src/main/java/**/*.java",
+    ]),
+    deps = [
+        ":all-libs",
+        ":build_config",
+        ":res",
+    ],
+)
+
+android_build_config(
+    name = "build_config",
+    package = "com.example",
+)
+
+android_resource(
+    name = "res",
+    package = "com.example",
+    res = "src/main/res",
+)
+
+android_binary(
+    name = "app",
+    keystore = "//android/keystores:debug",
+    manifest = "src/main/AndroidManifest.xml",
+    package_type = "debug",
+    deps = [
+        ":app-code",
+    ],
+)