blob: ce691c3b7fb4074dc7610f3c32c46fe3a661f6df [file] [log] [blame]
/*
* Copyright (C) 2012 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.android.contacts.util;
import android.content.ClipData;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.content.FileProvider;
import android.util.Log;
import com.android.contacts.R;
import com.google.common.io.Closeables;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
/**
* Utilities related to loading/saving contact photos.
*
*/
public class ContactPhotoUtils {
private static final String TAG = "ContactPhotoUtils";
private static final String PHOTO_DATE_FORMAT = "'IMG'_yyyyMMdd_HHmmss";
/**
* Generate a new, unique file to be used as an out-of-band communication
* channel, since hi-res Bitmaps are too big to serialize into a Bundle.
* This file will be passed (as a uri) to other activities (such as the gallery/camera/
* cropper/etc.), and read by us once they are finished writing it.
*/
public static Uri generateTempImageUri(Context context) {
final String fileProviderAuthority = context.getResources().getString(
R.string.photo_file_provider_authority);
return FileProvider.getUriForFile(context, fileProviderAuthority,
new File(pathForTempPhoto(context, generateTempPhotoFileName())));
}
public static Uri generateTempCroppedImageUri(Context context) {
final String fileProviderAuthority = context.getResources().getString(
R.string.photo_file_provider_authority);
return FileProvider.getUriForFile(context, fileProviderAuthority,
new File(pathForTempPhoto(context, generateTempCroppedPhotoFileName())));
}
private static String pathForTempPhoto(Context context, String fileName) {
final File dir = context.getCacheDir();
dir.mkdirs();
final File f = new File(dir, fileName);
return f.getAbsolutePath();
}
private static String generateTempPhotoFileName() {
final Date date = new Date(System.currentTimeMillis());
SimpleDateFormat dateFormat = new SimpleDateFormat(PHOTO_DATE_FORMAT, Locale.US);
return "ContactPhoto-" + dateFormat.format(date) + ".jpg";
}
private static String generateTempCroppedPhotoFileName() {
final Date date = new Date(System.currentTimeMillis());
SimpleDateFormat dateFormat = new SimpleDateFormat(PHOTO_DATE_FORMAT, Locale.US);
return "ContactPhoto-" + dateFormat.format(date) + "-cropped.jpg";
}
/**
* Given a uri pointing to a bitmap, reads it into a bitmap and returns it.
* @throws FileNotFoundException
*/
public static Bitmap getBitmapFromUri(Context context, Uri uri) throws FileNotFoundException {
final InputStream imageStream = context.getContentResolver().openInputStream(uri);
try {
return BitmapFactory.decodeStream(imageStream);
} finally {
Closeables.closeQuietly(imageStream);
}
}
/**
* Creates a byte[] containing the PNG-compressed bitmap, or null if
* something goes wrong.
*/
public static byte[] compressBitmap(Bitmap bitmap) {
final int size = bitmap.getWidth() * bitmap.getHeight() * 4;
final ByteArrayOutputStream out = new ByteArrayOutputStream(size);
try {
bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
out.flush();
out.close();
return out.toByteArray();
} catch (IOException e) {
Log.w(TAG, "Unable to serialize photo: " + e.toString());
return null;
}
}
public static void addCropExtras(Intent intent, int photoSize) {
intent.putExtra("crop", "true");
intent.putExtra("scale", true);
intent.putExtra("scaleUpIfNeeded", true);
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", photoSize);
intent.putExtra("outputY", photoSize);
}
/**
* Adds common extras to gallery intents.
*
* @param intent The intent to add extras to.
* @param photoUri The uri of the file to save the image to.
*/
public static void addPhotoPickerExtras(Intent intent, Uri photoUri) {
intent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);
intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION |
Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setClipData(ClipData.newRawUri(MediaStore.EXTRA_OUTPUT, photoUri));
}
/**
* Given an input photo stored in a uri, save it to a destination uri
*/
public static boolean savePhotoFromUriToUri(Context context, Uri inputUri, Uri outputUri,
boolean deleteAfterSave) {
if (inputUri == null || outputUri == null) {
return false;
}
try (FileOutputStream outputStream = context.getContentResolver()
.openAssetFileDescriptor(outputUri, "rw").createOutputStream();
InputStream inputStream = context.getContentResolver().openInputStream(inputUri)) {
final byte[] buffer = new byte[16 * 1024];
int length;
int totalLength = 0;
while ((length = inputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, length);
totalLength += length;
}
Log.v(TAG, "Wrote " + totalLength + " bytes for photo " + inputUri.toString());
} catch (IOException | NullPointerException e) {
Log.e(TAG, "Failed to write photo: " + inputUri.toString() + " because: " + e);
return false;
} finally {
if (deleteAfterSave) {
context.getContentResolver().delete(inputUri, null, null);
}
}
return true;
}
}