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@ -1,104 +0,0 @@
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package com.proculite.androidagain.common.storageaccess;
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import android.content.Context;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.PersistableBundle;
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import android.util.Log;
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import androidx.activity.ComponentActivity;
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import androidx.activity.result.ActivityResultCallback;
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import androidx.activity.result.ActivityResultCaller;
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import androidx.activity.result.ActivityResultLauncher;
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import androidx.activity.result.contract.ActivityResultContracts;
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import androidx.fragment.app.Fragment;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.nio.charset.StandardCharsets;
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import java.util.function.Consumer;
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public class CreateDocumentGuide implements ActivityResultCallback<Uri> {
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private final String TAG = ActivityResultContracts.CreateDocument.class.getName();
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private final ActivityResultLauncher<String> createDocumentLauncher;
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private final Context context;
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private UriHandler uriHandler;
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/**
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* This constructor registers a request to start an activity for a result, therefore it must
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* be called unconditionally, as part of the initialization path, typically as a field
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* initializer of an Activity or Fragment. A suitable location to call it would be the within
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* {@link android.app.Activity#onCreate(Bundle, PersistableBundle)} method.
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* @param activityResultCaller Activity result callback, such as
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* {@link androidx.fragment.app.Fragment} or {@link androidx.appcompat.app.AppCompatActivity}.
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* @param mimeType Mime type of document.
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*/
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public CreateDocumentGuide(
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Context context,
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ActivityResultCaller activityResultCaller,
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String mimeType
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){
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this.context = context;
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ActivityResultContracts.CreateDocument createDocumentContract =
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new ActivityResultContracts.CreateDocument(mimeType);
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createDocumentLauncher = activityResultCaller
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.registerForActivityResult(createDocumentContract, this);
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}
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public static CreateDocumentGuide anyMimeType(
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Context context,
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ActivityResultCaller activityResultCaller
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){
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return new CreateDocumentGuide(context, activityResultCaller, "*/*");
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}
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public static CreateDocumentGuide anyMimeType(
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ComponentActivity componentActivity
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){
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return anyMimeType(componentActivity, componentActivity);
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}
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public static CreateDocumentGuide anyMimeType(
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Fragment fragment
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){
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return anyMimeType(fragment.getContext(), fragment);
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}
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@Override
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public final void onActivityResult(Uri o) {
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uriHandler.handleUri(o);
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}
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public void writeToOutputStream(String suggestedFileName, OutputStreamHandler outputStreamHandler){
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uriHandler = uri -> {
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try {
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OutputStream outputStream = context.getContentResolver().openOutputStream(uri);
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outputStreamHandler.handleOutputStream(outputStream);
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if(outputStream != null) {
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outputStream.close();
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}
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} catch (FileNotFoundException e) {
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Log.e(TAG, "FileNotFoundException occurred on write to OutputStream.");
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} catch (IOException e) {
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Log.e(TAG, "IOException occurred on write to OutputStream.");
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}
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};
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createDocumentLauncher.launch(suggestedFileName);
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}
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public void writeBytes(String suggestedFileName, byte[] bytesToWrite){
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writeToOutputStream(suggestedFileName, outputStream -> {
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try {
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outputStream.write(bytesToWrite);
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} catch (IOException e) {
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Log.e(TAG, "IOException occurred when writing bytes.");
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}
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});
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}
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public void writeString(String suggestedFileName, String stringToWrite){
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writeBytes(suggestedFileName, stringToWrite.getBytes(StandardCharsets.UTF_8));
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}
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}
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package com.proculite.androidagain.common.storageaccess;
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import java.io.InputStream;
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public interface InputStreamHandler {
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void handleInputStream(InputStream inputStream);
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}
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@ -1,62 +0,0 @@
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package com.proculite.androidagain.common.storageaccess;
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import android.content.Context;
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import android.net.Uri;
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import android.util.Log;
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import androidx.activity.result.ActivityResultCallback;
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import androidx.activity.result.ActivityResultCaller;
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import androidx.activity.result.ActivityResultLauncher;
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import androidx.activity.result.contract.ActivityResultContracts;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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public class OpenDocumentGuide implements ActivityResultCallback<Uri> {
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private final String TAG = ActivityResultContracts.OpenDocument.class.getName();
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private final ActivityResultLauncher<String[]> openDocumentLauncher;
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private final Context context;
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private UriHandler uriHandler;
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public OpenDocumentGuide(
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Context context,
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ActivityResultCaller activityResultCaller
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) {
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this.context = context;
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ActivityResultContracts.OpenDocument openDocumentContract =
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new ActivityResultContracts.OpenDocument();
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openDocumentLauncher = activityResultCaller.registerForActivityResult(openDocumentContract, this);
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}
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@Override
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public void onActivityResult(Uri o) {
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uriHandler.handleUri(o);
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}
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public void readFromInputStream(String[] suggestedMimeTypes, InputStreamHandler inputStreamHandler){
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uriHandler = uri -> {
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try {
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InputStream inputStream = context.getContentResolver().openInputStream(uri);
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if(inputStream == null)
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{
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Log.e(TAG, "Obtained input stream is null.");
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return;
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}
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inputStreamHandler.handleInputStream(inputStream);
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inputStream.close();
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}catch (FileNotFoundException e){
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Log.e(TAG, "FileNotFoundException occurred on read from InputStream.");
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} catch (IOException e) {
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Log.e(TAG, "IOException occurred on read from InputStream.");
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}
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};
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openDocumentLauncher.launch(suggestedMimeTypes);
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}
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public void readFromInputStream(InputStreamHandler inputStreamHandler){
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// Any MIME type.
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readFromInputStream(new String[]{"*/*"},inputStreamHandler);
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}
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}
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@ -1,7 +0,0 @@
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package com.proculite.androidagain.common.storageaccess;
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import java.io.OutputStream;
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public interface OutputStreamHandler {
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void handleOutputStream(OutputStream outputStream);
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}
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@ -1,7 +0,0 @@
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package com.proculite.androidagain.common.storageaccess;
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import android.net.Uri;
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public interface UriHandler {
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void handleUri(Uri uri);
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}
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