/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.apis.content;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.DocumentsContract;
import android.provider.DocumentsContract.Document;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.TextView;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* Example that exercises client side of {@link DocumentsContract}.
*/
public class DocumentsSample extends Activity {
private static final String TAG = "DocumentsSample";
private static final int CODE_READ = 42;
private static final int CODE_WRITE = 43;
private static final int CODE_TREE = 44;
private static final int CODE_RENAME = 45;
private TextView mResult;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
final Context context = this;
final LinearLayout view = new LinearLayout(context);
view.setOrientation(LinearLayout.VERTICAL);
mResult = new TextView(context);
view.addView(mResult);
final CheckBox multiple = new CheckBox(context);
multiple.setText("ALLOW_MULTIPLE");
view.addView(multiple);
final CheckBox localOnly = new CheckBox(context);
localOnly.setText("LOCAL_ONLY");
view.addView(localOnly);
Button button;
button = new Button(context);
button.setText("OPEN_DOC */*");
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("*/*");
if (multiple.isChecked()) {
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
}
if (localOnly.isChecked()) {
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
}
startActivityForResult(intent, CODE_READ);
}
});
view.addView(button);
button = new Button(context);
button.setText("OPEN_DOC image/*");
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
if (multiple.isChecked()) {
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
}
if (localOnly.isChecked()) {
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
}
startActivityForResult(intent, CODE_READ);
}
});
view.addView(button);
button = new Button(context);
button.setText("OPEN_DOC audio/ogg");
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("audio/ogg");
if (multiple.isChecked()) {
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
}
if (localOnly.isChecked()) {
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
}
startActivityForResult(intent, CODE_READ);
}
});
view.addView(button);
button = new Button(context);
button.setText("OPEN_DOC text/plain, application/msword");
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("*/*");
intent.putExtra(Intent.EXTRA_MIME_TYPES, new String[] {
"text/plain", "application/msword" });
if (multiple.isChecked()) {
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
}
if (localOnly.isChecked()) {
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
}
startActivityForResult(intent, CODE_READ);
}
});
view.addView(button);
button = new Button(context);
button.setText("CREATE_DOC text/plain");
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_TITLE, "foobar.txt");
if (localOnly.isChecked()) {
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
}
startActivityForResult(intent, CODE_WRITE);
}
});
view.addView(button);
button = new Button(context);
button.setText("CREATE_DOC image/png");
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/png");
intent.putExtra(Intent.EXTRA_TITLE, "mypicture.png");
if (localOnly.isChecked()) {
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
}
startActivityForResult(intent, CODE_WRITE);
}
});
view.addView(button);
button = new Button(context);
button.setText("GET_CONTENT */*");
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("*/*");
if (multiple.isChecked()) {
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
}
if (localOnly.isChecked()) {
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
}
startActivityForResult(Intent.createChooser(intent, "Kittens!"), CODE_READ);
}
});
view.addView(button);
button = new Button(context);
button.setText("OPEN_DOC_TREE");
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
if (localOnly.isChecked()) {
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
}
startActivityForResult(Intent.createChooser(intent, "Kittens!"), CODE_TREE);
}
});
view.addView(button);
button = new Button(context);
button.setText("OPEN_DOC */* for rename");
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("*/*");
startActivityForResult(intent, CODE_RENAME);
}
});
view.addView(button);
final ScrollView scroll = new ScrollView(context);
scroll.addView(view);
setContentView(scroll);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
final ContentResolver cr = getContentResolver();
clearLog();
log("resultCode=" + resultCode);
log("data=" + String.valueOf(data));
final Uri uri = data != null ? data.getData() : null;
if (uri != null) {
log("isDocumentUri=" + DocumentsContract.isDocumentUri(this, uri));
} else {
log("missing URI?");
return;
}
if (requestCode == CODE_READ) {
try {
cr.takePersistableUriPermission(uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
} catch (SecurityException e) {
log("FAILED TO TAKE PERMISSION", e);
}
InputStream is = null;
try {
is = cr.openInputStream(uri);
log("read length=" + readFullyNoClose(is).length);
} catch (Exception e) {
log("FAILED TO READ", e);
} finally {
closeQuietly(is);
}
} else if (requestCode == CODE_WRITE) {
try {
cr.takePersistableUriPermission(uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
} catch (SecurityException e) {
log("FAILED TO TAKE PERMISSION", e);
}
OutputStream os = null;
try {
os = cr.openOutputStream(uri);
os.write("THE COMPLETE WORKS OF SHAKESPEARE".getBytes());
log("wrote data");
} catch (Exception e) {
log("FAILED TO WRITE", e);
} finally {
closeQuietly(os);
}
} else if (requestCode == CODE_TREE) {
// Find existing docs
Uri doc = DocumentsContract.buildDocumentUriUsingTree(uri,
DocumentsContract.getTreeDocumentId(uri));
Uri child = DocumentsContract.buildChildDocumentsUriUsingTree(uri,
DocumentsContract.getTreeDocumentId(uri));
Cursor c = cr.query(child, new String[] {
Document.COLUMN_DISPLAY_NAME, Document.COLUMN_MIME_TYPE }, null, null, null);
try {
while (c.moveToNext()) {
log("found child=" + c.getString(0) + ", mime=" + c.getString(1));
}
} finally {
closeQuietly(c);
}
// Create some documents
Uri pic = DocumentsContract.createDocument(cr, doc, "image/png", "pic.png");
Uri dir = DocumentsContract.createDocument(cr, doc, Document.MIME_TYPE_DIR, "my dir");
Uri dirPic = DocumentsContract.createDocument(cr, dir, "image/png", "pic2.png");
log("created " + pic);
log("created " + dir);
log("created " + dirPic);
// Write to one of them
OutputStream os = null;
try {
os = cr.openOutputStream(dirPic);
os.write("THE COMPLETE WORKS OF SHAKESPEARE".getBytes());
log("wrote data");
} catch (Exception e) {
log("FAILED TO WRITE", e);
} finally {
closeQuietly(os);
}
// And delete the first pic
if (DocumentsContract.deleteDocument(cr, pic)) {
log("deleted untouched pic");
} else {
log("FAILED TO DELETE PIC");
}
} else if (requestCode == CODE_RENAME) {
final Uri newUri = DocumentsContract.renameDocument(cr, uri, "MEOW.TEST");
log("rename result=" + newUri);
InputStream is = null;
try {
is = cr.openInputStream(newUri);
log("read length=" + readFullyNoClose(is).length);
} catch (Exception e) {
log("FAILED TO READ", e);
} finally {
closeQuietly(is);
}
}
}
private void clearLog() {
mResult.setText(null);
}
private void log(String msg) {
log(msg, null);
}
private void log(String msg, Throwable t) {
Log.d(TAG, msg, t);
mResult.setText(mResult.getText() + "\n" + msg);
}
public static byte[] readFullyNoClose(InputStream in) throws IOException {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int count;
while ((count = in.read(buffer)) != -1) {
bytes.write(buffer, 0, count);
}
return bytes.toByteArray();
}
public static void closeQuietly(AutoCloseable closeable) {
if (closeable != null) {
try {
closeable.close();
} catch (RuntimeException rethrown) {
throw rethrown;
} catch (Exception ignored) {
}
}
}
}