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最近线上反馈#xff0c;部分vivo手机更换头像时调用系统相册保存图片失败#xff0c;经本人测试#xff0c;确实有问题。
经修复后#xff0c;贴出这块的代码供小伙伴们参考使用。
功能
更换头像选择图片#xff1a;
调用系统相机拍照#xff0c;调用系统图片…前言
最近线上反馈部分vivo手机更换头像时调用系统相册保存图片失败经本人测试确实有问题。
经修复后贴出这块的代码供小伙伴们参考使用。
功能
更换头像选择图片
调用系统相机拍照调用系统图片裁剪并保存。调用系统相册选择照片调用系统图片裁剪并保存。
此功能需要动态申请 相机和读写外部存储的权限此处省略了请自行动态申请添加。
String[] permissionsnew String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE};1、布局文件activity_picture.xml
?xml version1.0 encodingutf-8?
LinearLayout xmlns:androidhttp://schemas.android.com/apk/res/androidandroid:layout_widthmatch_parentandroid:layout_heightmatch_parentandroid:orientationverticalButtonandroid:idid/takePictureFromCameraandroid:layout_widthwrap_contentandroid:layout_heightwrap_contentandroid:text拍照 /Buttonandroid:idid/takePictureFromLibandroid:layout_widthwrap_contentandroid:layout_heightwrap_contentandroid:text从相册选取 /ImageViewandroid:idid/imgandroid:layout_widthwrap_contentandroid:layout_heightwrap_contentandroid:layout_marginTop10dp/
/LinearLayout2、PictureActivity
public class PictureActivity extends AppCompatActivity {public class Const {public static final int PHOTO_GRAPH 1;// 拍照public static final int PHOTO_ZOOM 2; // 相册public static final int PHOTO_RESOULT 3;// 结果public static final String IMAGE_UNSPECIFIED image/*;}public String authority;private ImageView imageView;Overrideprotected void onCreate(Nullable Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_picture);authority getApplicationContext().getPackageName() .fileprovider;imageView findViewById(R.id.img);findViewById(R.id.takePictureFromCamera).setOnClickListener(v - openCamera(Const.PHOTO_GRAPH));findViewById(R.id.takePictureFromLib).setOnClickListener(v - openCamera(Const.PHOTO_ZOOM));}private void openCamera(int type) {Intent intent;if (type Const.PHOTO_GRAPH) {//打开相机intent new Intent(MediaStore.ACTION_IMAGE_CAPTURE);//指定调用相机拍照后照片的储存路径File photoFile new File(CoreConstants.getNurseDownloadFile(this), temp.jpg);if (!photoFile.exists()) {photoFile.getParentFile().mkdirs();}Uri uri FileUtil.getUri(this, authority, photoFile);intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);} else {//打开相册intent new Intent(Intent.ACTION_PICK, null);intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, Const.IMAGE_UNSPECIFIED);}startActivityForResult(intent, type);}/*** 调用系统的裁剪图片*/private void crop(Uri uri) {try {Intent intent new Intent(com.android.camera.action.CROP);String contentURl CoreConstants.getNurseDownloadFile(this) File.separator temp.jpg;File cropFile new File(contentURl);Uri cropUri;//在7.0以上跨文件传输uri时候需要用FileProviderif (Build.VERSION.SDK_INT Build.VERSION_CODES.N) {cropUri FileProvider.getUriForFile(this, getPackageName() .fileprovider, cropFile);intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);} else {cropUri Uri.fromFile(cropFile);}intent.putExtra(MediaStore.EXTRA_OUTPUT, cropUri);intent.setDataAndType(uri, Const.IMAGE_UNSPECIFIED);intent.putExtra(crop, true);// 裁剪框的比例11intent.putExtra(aspectX, 1);intent.putExtra(aspectY, 1);// 裁剪后输出图片的尺寸大小intent.putExtra(outputX, 200);intent.putExtra(outputY, 200);intent.putExtra(outputFormat, Bitmap.CompressFormat.JPEG.toString());// 图片格式intent.putExtra(noFaceDetection, true);// 取消人脸识别intent.putExtra(return-data, true);//是否返回裁剪后图片的Bitmapintent.putExtra(output, cropUri);//重要添加权限不然裁剪完后报 “保存时发生错误保存失败”ListResolveInfo resInfoList getPackageManager().queryIntentActivities(intent,PackageManager.MATCH_DEFAULT_ONLY);for (ResolveInfo resolveInfo : resInfoList) {String packageName resolveInfo.activityInfo.packageName;grantUriPermission(packageName, cropUri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION | Intent.FLAG_GRANT_READ_URI_PERMISSION);}ComponentName componentName intent.resolveActivity(getPackageManager());if (componentName ! null) {// 开启一个带有返回值的Activity请求码为PHOTO_REQUEST_CUTstartActivityForResult(intent, Const.PHOTO_RESOULT);}} catch (Exception e) {String s e.getMessage().toString();}}public Bitmap convertUriToBitmap(Uri uri) {ContentResolver contentResolver getContentResolver();try {// 将Uri转换为字节数组return BitmapFactory.decodeStream(contentResolver.openInputStream(uri));} catch (Exception e) {e.printStackTrace();return null;}}Overrideprotected void onActivityResult(int requestCode, int resultCode, Nullable Intent data) {super.onActivityResult(requestCode, resultCode, data);// 拍照if (requestCode Const.PHOTO_GRAPH) {// 设置文件保存路径File picture new File(CoreConstants.getNurseDownloadFile(this) File.separator temp.jpg);Uri uri FileUtil.getUri(this, authority, picture);crop(uri);}if (data null)return;//读取相册图片if (requestCode Const.PHOTO_ZOOM) {crop(data.getData());}//处理裁剪后的结果if (requestCode Const.PHOTO_RESOULT) {Bundle extras data.getExtras();Bitmap photo null;if(extras ! null) {photo extras.getParcelable(data);}if (photo null data.getData() ! null) {//部分小米手机extras是个null所以想拿到Bitmap要转下photo convertUriToBitmap(data.getData());}if (photo ! null) {//拿到Bitmap后直接显示在Image控件上imageView.setImageBitmap(photo);//将图片上传到服务器
// String fileName CommonCacheUtil.getUserId();
// final File file FileUtil.saveImgFile(this, photo, fileName);
// final String fileKey UUID.randomUUID().toString().replaceAll(-, );//将file通过post上传到服务器//TODO后续自行发挥}}}
}3、FileUtil 工具类
public class FileUtil {public static Uri getUri(Context context, String authority, File file) {Uri uri null;if (Build.VERSION.SDK_INT Build.VERSION_CODES.N) {uri FileProvider.getUriForFile(context, authority, file);} else {uri Uri.fromFile(file);}return uri;}public static File saveImgFile(Context context, Bitmap bitmap, String fileName) {if (fileName null) {System.out.println(saved fileName can not be null);return null;} else {fileName fileName .png;String path context.getFilesDir().getAbsolutePath();String lastFilePath path / fileName;File file new File(lastFilePath);if (file.exists()) {file.delete();}try {FileOutputStream outputStream context.openFileOutput(fileName, 0);bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream);outputStream.flush();outputStream.close();} catch (FileNotFoundException var7) {var7.printStackTrace();} catch (IOException var8) {var8.printStackTrace();}return file;}}
}4、工具类 CoreConstants
public class CoreConstants {public static String getNurseDownloadFile(Context context) {return context.getExternalFilesDir().getAbsolutePath() /img;}
}5、在 AndroidManifest.xml 中配置 FileProvider application....providerandroid:nameandroidx.core.content.FileProviderandroid:authorities${applicationId}.fileproviderandroid:exportedfalseandroid:grantUriPermissionstrue meta-dataandroid:nameandroid.support.FILE_PROVIDER_PATHSandroid:resourcexml/filepaths //provider/application6、filepaths.xml 文件
pathsexternal-path pathnotePadRecorder/ namenotePadRecorder /external-path namemy_images pathPictures/external-path nameexternal_files path./root-path nameroot_path path. /
/paths
这部分代码在小米和vivo手机上测过是正常的。
目前线上也没有反馈在其他机型上该功能有问题如有问题后续持续更新此文章。
