将照片保存到gallery Android Studio（java）时出错

1 周，5 日 Questions & Answers 79

正在尝试捕获图像并将该图像保存到库中。然而，我似乎有一些错误。我尝试了以下文档： https://developer.安卓.com/training/camera/photobasics

但它似乎已经过时了

除此之外，“我的文件路径”还会导致一个致命错误：

    Process: com.example.studyshots, PID: 9863
    java.lang.RuntimeException: Unable to get provider 安卓x.core.content.FileProvider: java.lang.IllegalArgumentException: Missing 安卓.support.FILE_PROVIDER_PATHS meta-data
        at 安卓.app.ActivityThread.installProvider(ActivityThread.java:6683)
        at 安卓.app.ActivityThread.installContentProviders(ActivityThread.java:6225)
        at 安卓.app.ActivityThread.handleBindApplication(ActivityThread.java:6140)
        at 安卓.app.ActivityThread.access$1200(ActivityThread.java:235)
        at 安卓.app.ActivityThread$H.handleMessage(ActivityThread.java:1768)
        at 安卓.os.Handler.dispatchMessage(Handler.java:106)
        at 安卓.os.Looper.loop(Looper.java:214)
        at 安卓.app.ActivityThread.main(ActivityThread.java:6986)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.安卓.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.安卓.internal.os.ZygoteInit.main(ZygoteInit.java:1445)
     Caused by: java.lang.IllegalArgumentException: Missing 安卓.support.FILE_PROVIDER_PATHS meta-data
        at 安卓x.core.content.FileProvider.parsePathStrategy(FileProvider.java:608)
        at 安卓x.core.content.FileProvider.getPathStrategy(FileProvider.java:579)
        at 安卓x.core.content.FileProvider.attachInfo(FileProvider.java:392)
        at 安卓.app.ActivityThread.installProvider(ActivityThread.java:6678)
        at 安卓.app.ActivityThread.installContentProviders(ActivityThread.java:6225) 
        at 安卓.app.ActivityThread.handleBindApplication(ActivityThread.java:6140) 
        at 安卓.app.ActivityThread.access$1200(ActivityThread.java:235) 
        at 安卓.app.ActivityThread$H.handleMessage(ActivityThread.java:1768) 
        at 安卓.os.Handler.dispatchMessage(Handler.java:106) 
        at 安卓.os.Looper.loop(Looper.java:214) 
        at 安卓.app.ActivityThread.main(ActivityThread.java:6986) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.安卓.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
        at com.安卓.internal.os.ZygoteInit.main(ZygoteInit.java:1445)

以下是我调用意图打开相机并尝试保存拍摄的图像的地方：

    private void dispatchTakePictureIntent() {
        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        // Ensure that there's a camera activity to handle the intent
        if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
            // Create the File where the photo should go
            File photoFile = null;
            try {
                photoFile = createImageFile();
            } catch (IOException ex) {
                // Error occurred while creating the File

            }
            // Continue only if the File was successfully created
            if (photoFile != null) {
                Uri photoURI = FileProvider.getUriForFile(this,
                        "com.example.安卓.fileprovider",
                        photoFile);
                takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
                startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
            }
        }
    }

    //Saving the full size image


    private File createImageFile() throws IOException {
        // Create an image file name
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        String imageFileName = "JPEG_" + timeStamp + "_";
        File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
        File image = File.createTempFile(
                imageFileName,  /* prefix */
                ".jpg",         /* suffix */
                storageDir      /* directory */
        );

        // Save a file: path for use with ACTION_VIEW intents
        currentPhotoPath = image.getAbsolutePath();
        return image;
    }



    //Add image to gallery

    private void galleryAddPic() {
        Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
        File f = new File(currentPhotoPath);
        Uri contentUri = Uri.fromFile(f);
        mediaScanIntent.setData(contentUri);
        this.sendBroadcast(mediaScanIntent);
    }

Android清单：

<manifest xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
    xmlns:tools="http://schemas.安卓.com/tools"
    package="com.example.studyshots">

    <application
        安卓:allowBackup="true"
        安卓:icon="@mipmap/ic_launcher"
        安卓:label="@string/app_name"
        安卓:roundIcon="@mipmap/ic_launcher_round"
        安卓:supportsRtl="true"
        安卓:theme="@style/AppTheme"
        tools:ignore="GoogleAppIndexingWarning">
        <activity 安卓:name=".photo_view_activity" />
        <activity 安卓:name=".AlbumView" />
        <activity 安卓:name=".SettingsActivity" />
        <activity 安卓:name=".MainActivity">
            <intent-filter>
                <action 安卓:name="安卓.intent.action.MAIN" />

                <category 安卓:name="安卓.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>


        <meta-data
            安卓:name="安卓.support.FILE_PROVIDER_PATHS"
            安卓:resource="@xml/file_paths" />
        <provider
            安卓:name="安卓x.core.content.FileProvider"
            安卓:authorities="com.example.安卓.fileprovider"
            安卓:exported="false"
            安卓:grantUriPermissions="true" />


    </application>
    <uses-feature
        安卓:name="安卓.hardware.camera"
        安卓:required="true" />
    <uses-permission 安卓:name="安卓.permission.READ_EXTERNAL_STORAGE" />>
    <uses-permission 安卓:name="安卓.permission.CAMERA" />

    <uses-permission 安卓:name="安卓.permission.WRITE_EXTERNAL_STORAGE" />

</manifest>

最后是我的文件路径。xml:

<?xml version="1.0" encoding="utf-8"?>
<MainActivity xmlns:安卓="http://schemas.安卓.com/apk/res/安卓">

<paths>
    <external-files-path name="my_images" />
</paths>

</MainActivity>

提前谢谢你的帮助

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将照片保存到gallery Android Studio（java）时出错

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