之前写的一个工具类，在华为手机Android版本12上无法返回图片路径，提示不是一个文件或是文件不存在。

所以更改此工具类如下：

package com.suoer.comeonhealth.laibadoctorandroid.utils;import android.app.Activity;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Base64;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.WindowManager;import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;public class ImageSetUtils {public static final int CODE_SETHDIMG_ALNUM = 572;public static final int CODE_SETHDIMG_CAM = 231;public static final int CODE_CROP_IMG = 318;public File camImgFile = null;public File cropImgFile = null;public void gotoCam(Activity context) {//获取当前系统的android版本号int currentApiVersion = android.os.Build.VERSION.SDK_INT;SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault());String str = dateFormat.format(new Date(System.currentTimeMillis()));//设置保存拍摄照片路径(DCIM/Camera/Modle_PictureWall_img_20170212_122223.jpg)//路径默认，若修改则不能保存照片camImgFile = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM), "/Camera/LaibaDoctor_img_" + str + ".jpg");try {if (camImgFile.exists()) {camImgFile.delete();}camImgFile.createNewFile();} catch (IOException e) {e.printStackTrace();}Uri outputImgUriFromCam;if (currentApiVersion < 24) {outputImgUriFromCam = Uri.fromFile(camImgFile);} else {ContentValues contentValues = new ContentValues(1);contentValues.put(MediaStore.Images.Media.DATA, camImgFile.getAbsolutePath());outputImgUriFromCam = context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues);}//跳转到照相机拍照Intent it = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);it.putExtra(MediaStore.EXTRA_OUTPUT, outputImgUriFromCam);context.startActivityForResult(it, CODE_SETHDIMG_CAM);}public void gotoAlbum(Activity context) {Intent it = new Intent(Intent.ACTION_PICK,MediaStore.Images.Media.EXTERNAL_CONTENT_URI);(context).startActivityForResult(it, CODE_SETHDIMG_ALNUM);}/*** 裁剪图片* @param context 上下文* @param isFromCam 是否来自于相机* @param isSetHd   是否是头像* @param data      图片返回的uri* @param fileName  路径名称*/public void cropImg(Activity context, boolean isFromCam, boolean isSetHd, Intent data, String fileName) {File inputFile;if (isFromCam) {inputFile = camImgFile;} else {inputFile = new File(getRealPathFromURI(context, data.getData()));}//设置保存路径名称cropImgFile = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),fileName+String.valueOf(System.currentTimeMillis()) + ".jpg");try {if (cropImgFile.exists()) {cropImgFile.delete();}cropImgFile.createNewFile();} catch (IOException e) {e.printStackTrace();}WindowManager manager = context.getWindowManager();DisplayMetrics outMetrics = new DisplayMetrics();manager.getDefaultDisplay().getMetrics(outMetrics);Intent it = new Intent("com.android.camera.action.CROP");it.setDataAndType(getImageContentUri(context, inputFile), "image/jpg");it.putExtra("output", Uri.fromFile(cropImgFile));it.putExtra("crop", "true");if (isSetHd) {// 裁剪框比例it.putExtra("aspectX", 1);it.putExtra("aspectY", 1);// 输出图片大小it.putExtra("outputX", 240);it.putExtra("outputY", 240);} else {// 裁剪框比例it.putExtra("aspectX", 3);it.putExtra("aspectY", 2);// 输出图片大小it.putExtra("outputX", 600);it.putExtra("outputY", 400);}// 返回格式it.putExtra("outputFormat", "JPEG");(context).startActivityForResult(it, CODE_CROP_IMG);}public String getRealPathFromURI(Activity context, Uri uri) {String[] filePathColumn = {MediaStore.Images.Media.DATA};Cursor cursor = context.getContentResolver().query(uri, filePathColumn, null, null, null);cursor.moveToFirst();int columnIndex = cursor.getColumnIndex(filePathColumn[0]);String picturePath = cursor.getString(columnIndex);cursor.close();return picturePath;}public Uri getImageContentUri(Activity context, File imageFile) {String filePath = imageFile.getAbsolutePath();Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, new String[]{"_id"}, "_data=? ", new String[]{filePath}, (String) null);if (cursor != null && cursor.moveToFirst()) {int values1 = cursor.getInt(cursor.getColumnIndex("_id"));Uri baseUri = Uri.parse("content://media/external/images/media");return Uri.withAppendedPath(baseUri, "" + values1);} else if (imageFile.exists()) {ContentValues values = new ContentValues();values.put("_data", filePath);return context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);} else {return null;}}public static String encodebase64(Bitmap bitmap) {ByteArrayOutputStream baos = new ByteArrayOutputStream();bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);byte[] bytes = baos.toByteArray();return new String(Base64.encode(bytes, Base64.DEFAULT));}public void refreshAlbum(Context context, String path) {context.sendBroadcast(new Intent("android.intent.action.MEDIA_SCANNER_SCAN_FILE", Uri.parse("file://" + path)));}public File getImg(Activity context, boolean isFromCam, boolean isSetHd, Intent data, String fileName) {File inputFile = null;try {if (isFromCam) {inputFile = camImgFile;} else {inputFile = new File(getRealPathFromURI(context, data.getData()));}} catch (Exception e) {e.printStackTrace();}return inputFile;}
}

此工具类的使用

    @NeedsPermission({Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE})public void takePicture() {if (imageSetUtils == null) {imageSetUtils = new ImageSetUtils();}imageSetUtils.gotoCam(this);}@NeedsPermission({Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE})public void gotoAlbum() {if (imageSetUtils == null) {imageSetUtils = new ImageSetUtils();}imageSetUtils.gotoAlbum(this);}

回调

    @Overridepublic void onActivityResult(int requestCode, int resultCode, Intent data) {super.onActivityResult(requestCode, resultCode, data);if (resultCode == RESULT_OK && requestCode == CODE_SETHDIMG_ALNUM) {//相册数据返回imageSetUtils.cropImg(this, false, true, data, "image_hd");//裁剪} else if (resultCode == RESULT_OK && requestCode == CODE_SETHDIMG_CAM) {//相机拍照返回imageSetUtils.cropImg(this, true, true, null, "image_hd");//裁剪imageSetUtils.refreshAlbum(mContext, imageSetUtils.camImgFile.getPath());//刷新相册} else if (resultCode == RESULT_OK && requestCode == CODE_CROP_IMG) {//裁剪图片返回headimgurl = imageSetUtils.cropImgFile.getPath();try {ConfigManager.getInstance().getImageLoader().loadCircleImage(icon_ImageView, headimgurl, R.mipmap.info_image_portrait, R.mipmap.info_image_portrait);//展示头像} catch (Exception e) {e.printStackTrace();}}
}