package com.gram.landlord_client.util;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.support.annotation.Nullable;
import android.support.v4.content.FileProvider;
import com.gram.landlord_client.activity.MainActivity;
import com.orhanobut.logger.Logger;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
public class AvatarChangeUtil {
//裁剪图
private static final String CROP = "CROP";
//压缩图
private static final String COMPRESS = "COMPRESS";
//FileProvider Authority
public static final String FILEPROVIDER="com.gram.gram_landlord.fileprovider";
/**
* 判断系统及拍照
*/
public static void takePicture(Activity activity) {
Uri pictureUri;
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//对目标uri临时授权
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
File pictureFile = createImageFile(activity, null);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
pictureUri = FileProvider.getUriForFile(activity,
FILEPROVIDER, pictureFile);
} else {
pictureUri = Uri.fromFile(pictureFile);
}
//去拍照
intent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);
((MainActivity) activity).setCameraUri(pictureUri);
if(intent.resolveActivity(activity.getPackageManager()) != null) {
activity.startActivityForResult(intent, MainActivity.REQUEST_IMAGE_CAPTURE);
}
}
/**
* 从图库选图片
*/
public static void selectPicture(Activity activity) {
Intent intent = new Intent();
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
intent.setAction(Intent.ACTION_OPEN_DOCUMENT);
} else {
intent.setAction(Intent.ACTION_GET_CONTENT);
}
intent.setType("image/*");
if(intent.resolveActivity(activity.getPackageManager()) != null) {
activity.startActivityForResult(intent, MainActivity.REQUEST_IMAGE_GET);
} else {
ToastUtil.showCenterToast("未找到图片查看器");
}
}
/**
* 处理ACTION_OPEN_DOCUMENT：图像选择器中Uri不被裁剪程序识别的问题
*/
@TargetApi(19)
public static String formatUri(Activity activity, Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(activity, uri)) {
// ExternalStorageProvider
if ("com.android.externalstorage.documents".equals(uri.getAuthority())) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/"
+ split[1];
}
}
// DownloadsProvider
else if ("com.android.providers.downloads.documents".equals(uri.getAuthority())) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"),
Long.valueOf(id));
return getDataColumn(activity, contentUri, null, null);
}
// MediaProvider
else if ("com.android.providers.media.documents".equals(uri.getAuthority())) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[]{split[1]};
return getDataColumn(activity, contentUri, selection,
selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if ("com.google.android.apps.photos.content".equals(uri.getAuthority()))
return uri.getLastPathSegment();
return getDataColumn(activity, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
private static String getDataColumn(Activity activity, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {column};
try {
cursor = activity.getContentResolver().query(uri, projection,
selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
/**
* 创建图片文件，名称不重复。
* @remark 图片注解，比如crop就是裁剪图、compress就是压缩图
*/
private static File createImageFile(Activity activity, @Nullable String remark) {
File imageFile = null;
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.CHINA).format(new Date());
String imageFileName = "AVATAR" + timeStamp + remark;
//应用内部目录
File pictureDir = activity.getExternalFilesDir(Environment.DIRECTORY_PICTURES);
if(pictureDir != null) {
File storageDir = new File(pictureDir.getAbsolutePath() + "/pictures");
try {
imageFile = File.createTempFile(imageFileName, ".jpg", storageDir);
} catch (IOException e) {
Logger.e(e.getMessage());
}
}
return imageFile;
}
/**
* 头像图片裁剪
*/
public static void crop(Activity activity, Uri uri) {
File pictureCropFile = createImageFile(activity, CROP);
Uri imgCropUri = Uri.fromFile(pictureCropFile);
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(uri, "image/*");
intent.putExtra("crop", "true");
//缩略图的比例是1：1
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", 500);
intent.putExtra("outputY", 500);
intent.putExtra("return-data", false);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imgCropUri);
((MainActivity) activity).setCropUri(imgCropUri);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
activity.startActivityForResult(intent, MainActivity.REQUEST_IMAGE_CROP);
}
/**
* 图片压缩，sizeLimit单位为KB
*/
public static Uri compress(Activity activity, Uri uri, long sizeLimit) {
File pictureCompressFile = createImageFile(activity, COMPRESS);
try {
Bitmap bitmap = BitmapFactory.decodeStream(activity.getContentResolver().openInputStream(uri));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int quality = 100;
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, baos);
while(baos.toByteArray().length / 1024 > sizeLimit) {
baos.reset();
quality -= 10;
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, baos);
}
Bitmap compressedBitmap = BitmapFactory.decodeStream(
new ByteArrayInputStream(baos.toByteArray()), null, null);
FileOutputStream fos = new FileOutputStream(pictureCompressFile);
if(compressedBitmap != null) {
compressedBitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
}
fos.flush();
fos.close();
return Uri.fromFile(pictureCompressFile);
} catch (FileNotFoundException e) {
Logger.e(e.getMessage());
} catch (IOException e) {
Logger.e(e.getMessage());
}
return null;
}
/**
* 将字节数组转换为Bitmap
*/
public static Bitmap bytes2Bitmap(byte[] b) {
if(b.length != 0) return BitmapFactory.decodeByteArray(b,0,b.length);
else return null;
}
/**
* 将Bitmap转换为字节数组，默认为PNG格式
*/
public static byte[] bitmap2Bytes(Bitmap bm) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.PNG, 100, baos);
return baos.toByteArray();
}
/**
* 根据uri获取bitmap
*/
public static Bitmap getBitmapFromUri(Context context, Uri uri) {
if(uri == null) return null;
Bitmap bm;
try {
bm = MediaStore.Images.Media.getBitmap(context.getContentResolver(), uri);
return bm;
} catch (IOException e) {
Logger.e(e.getMessage());
return null;
}
}
}
