I am trying to get image's Uri in the Gallery built-in app from inside my application.

我正在尝试从我的应用程序内部获取图库内置应用程序中的图像URI。

so, I was using the Intent below, but it selected many more image.

所以，我使用了下面的意图，但它选择了更多的图像。

i want to set limitation. less than 3

我想设置限制。少于3

@Override
public void onClick(View v) {
    Intent intent = new Intent( );
    intent.setType("image/*");
    intent.setAction(Intent.ACTION_GET_CONTENT);
    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
    startActivityForResult(Intent.createChooser(intent, "select images"), PICK_IMAGE_MULTIPLE);
}

how do i fix this.

我该怎么解决这件事。

Do you have any suggestions?

你有什么意见建议？

Unfortunately, as stated by http://developer.android.com/reference/android/content/Intent.html#EXTRA_ALLOW_MULTIPLE, this is not possible.

不幸的是，正如http://developer.android.com/reference/android/content/Intent.html#EXTRA_ALLOW_MULTIPLE，所说的那样，这是不可能的。

This is a boolean extra; the default is false. If true, an implementation is allowed to present the user with a UI where they can pick multiple items that are all returned to the caller.

You'll have to manually check the returned data to see if it's more than 3 items, and if so, show a Toast and let them try again.

你必须手动检查返回的数据，看看它是否超过3个项目，如果是这样，显示一个Toast，让他们再试一次。

As Daniel stated, there is no possibility with Intent.EXTRA_ALLOW_MULTIPLE. An alternative though, is using the MultipleImageSelect library. Not only can you select multiple images, but the extra ability to set a limit on images selected by the user.

正如Daniel所说，使用Inent.EXTRA_ALLOW_MULTIPLE是不可能的。不过，另一种方法是使用MultipleImageSelect库。您不仅可以选择多个图像，还可以对用户选择的图像设置额外的限制。

Check out the repository or a sample.

查看存储库或样本。

STEPS:

Step 1:
Add MultipleImageSelect library, together with jitpack.io to your build.gradle like this:

步骤1：将MultipleImageSelect库和jitpack.io一起添加到您的build.gradle中，如下所示：

repositories {
  maven {
    url "https://jitpack.io"
  }
}

dependencies {
  implementation 'com.github.darsh2:MultipleImageSelect:v0.0.4'
}

Step 2:
In project's AndroidManifest.xml, add the following under application node:

第二步：在项目的androidManifest.xml中，在应用程序节点下添加以下内容：

<activity
  android:name="com.darsh.multipleimageselect.activities.AlbumSelectActivity"
  android:theme="@style/MultipleImageSelectTheme">
  <intent-filter>
     <category android:name="android.intent.category.DEFAULT" />
  </intent-filter>
</activity>

Step 3:
In the activity from where you want to call image selector, create Intent as follows:

步骤3：在您想要调用图像选择器的活动中，按如下方式创建意图：

mSelectImagesBtn.setOnClickListener(view -> {
        Intent intent = new Intent(ListingImages.this, AlbumSelectActivity.class);
        intent.putExtra(Constants.INTENT_EXTRA_LIMIT, 3); //set desired image limit here
        startActivityForResult(intent, Constants.REQUEST_CODE);
    });

Step 4:
and override onActivityResult like this:

步骤4：重写onActivityResult，如下所示：

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == Constants.REQUEST_CODE && resultCode == RESULT_OK && data !=null) {
        ArrayList<Image> images =data.getParcelableArrayListExtra(Constants.INTENT_EXTRA_IMAGES);
        imagePathList.clear();
       StringBuffer stringBuffer = new StringBuffer();
       
       //loop to retrieve the paths of each image and display to TextView
       for (int i = 0; i < images.size(); i++) {
            stringBuffer.append(images.get(i).path + "\n");
       }
        textView.setText(stringBuffer.toString());
    }
}

DONE

干完

Alternatively,

或者，

If you're using an Adapter to inflate images to display, you can instead have this:

如果您使用适配器来放大要显示的图像，则可以使用以下选项：

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == Constants.REQUEST_CODE && resultCode == RESULT_OK && data != null) {
        ArrayList<Image> images = data.getParcelableArrayListExtra(Constants.INTENT_EXTRA_IMAGES);
        imagePathList.clear();
        for (int i = 0; i < images.size(); i++) {
            imagePathList.add(images.get(i).path);
        }
        imageAdapter.notifyDataSetChanged();
    }
}

Within ImageAdapter, display images to populate recyclerView, like follows:

在ImageAdapter中，显示图像以填充recumerView，如下所示：

@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
    String path = imagePathList.get(position);
    Picasso.with(mContext)
            .load(new File(path))
            .placeholder(R.drawable.ic_house_placeholder)
            .into(holder.image);
}

To have an updated answer for this question, this is an example of how to use Photo Picker which allows you to limit the max selected elements :

为了获得此问题的最新答案，以下是如何使用照片拾取器的示例，它允许您限制最大选定元素：

declare this launcher as a class field in your activity

在您的活动中将此启动器声明为类字段

    //In this example, the app lets the user select up to 5 media files.
private val galleryLauncher = registerForActivityResult(ActivityResultContracts.PickMultipleVisualMedia(5)) { uris ->
        if (!CollectionUtils.isEmpty(uris)) {
            //Do what you wanna do with your uri list
        }else {
            //nothing selected
        }
    }

Include only one of the following calls to launch(), depending on the types of media that you want to let the user choose from.

根据您要让用户从中选择的媒体类型，仅包含以下启动()调用之一。

// Include only one of the following calls to launch(), depending on the types
// of media that you want to let the user choose from.

// Launch the photo picker and let the user choose images and videos.
pickMedia.launch(PickVisualMediaRequest(PickVisualMedia.ImageAndVideo))

// Launch the photo picker and let the user choose only images.
pickMedia.launch(PickVisualMediaRequest(PickVisualMedia.ImageOnly))

// Launch the photo picker and let the user choose only videos.
pickMedia.launch(PickVisualMediaRequest(PickVisualMedia.VideoOnly))

// Launch the photo picker and let the user choose only images/videos of a
// specific MIME type, such as GIFs.
val mimeType = "image/gif"
pickMedia.launch(PickVisualMediaRequest(PickVisualMedia.SingleMimeType(mimeType)))