이미지 키보드 지원

var editText: EditText = object : EditText(this) {
    override fun onCreateInputConnection(outAttrs: EditorInfo): InputConnection {
        var ic = super.onCreateInputConnection(outAttrs)
        EditorInfoCompat.setContentMimeTypes(outAttrs, arrayOf("image/png"))
        val mimeTypes = ViewCompat.getOnReceiveContentMimeTypes(this)
        if (mimeTypes != null) {
            EditorInfoCompat.setContentMimeTypes(outAttrs, mimeTypes)
            ic = InputConnectionCompat.createWrapper(this, ic, outAttrs)
        }
        return ic
    }
}

EditText editText = new EditText(this) {
    @Override
    public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
        InputConnection ic = super.onCreateInputConnection(outAttrs);
        EditorInfoCompat.setContentMimeTypes(outAttrs, new String[]{"image/png"});
        String[] mimeTypes = ViewCompat.getOnReceiveContentMimeTypes(this);
        if (mimeTypes != null) {
            EditorInfoCompat.setContentMimeTypes(outAttrs, mimeTypes);
            ic = InputConnectionCompat.createWrapper(this, ic, outAttrs);
        }
        return ic;
    }
};

override fun onStartInputView(editorInfo: EditorInfo, restarting: Boolean) {
    val mimeTypes: Array<String> = EditorInfoCompat.getContentMimeTypes(editorInfo)

    val gifSupported: Boolean = mimeTypes.any {
        ClipDescription.compareMimeTypes(it, "image/gif")
    }

    if (gifSupported) {
        // The target editor supports GIFs. Enable the corresponding content.
    } else {
        // The target editor doesn't support GIFs. Disable the corresponding
        // content.
    }
}

@Override
public void onStartInputView(EditorInfo info, boolean restarting) {
    String[] mimeTypes = EditorInfoCompat.getContentMimeTypes(editorInfo);

    boolean gifSupported = false;
    for (String mimeType : mimeTypes) {
        if (ClipDescription.compareMimeTypes(mimeType, "image/gif")) {
            gifSupported = true;
        }
    }

    if (gifSupported) {
        // The target editor supports GIFs. Enable the corresponding content.
    } else {
        // The target editor doesn't support GIFs. Disable the corresponding
        // content.
    }
}

// Commits a GIF image.

// @param contentUri = Content URI of the GIF image to be sent.
// @param imageDescription = Description of the GIF image to be sent.

fun commitGifImage(contentUri: Uri, imageDescription: String) {
    val inputContentInfo = InputContentInfoCompat(
            contentUri,
            ClipDescription(imageDescription, arrayOf("image/gif")),
            null
    )
    val inputConnection = currentInputConnection
    val editorInfo = currentInputEditorInfo
    var flags = 0
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1) {
        flags = flags or InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION
    }
    InputConnectionCompat.commitContent(inputConnection, editorInfo, inputContentInfo, flags, null)
}

// Commits a GIF image.

// @param contentUri = Content URI of the GIF image to be sent.
// @param imageDescription = Description of the GIF image to be sent.

public static void commitGifImage(Uri contentUri, String imageDescription) {
    InputContentInfoCompat inputContentInfo = new InputContentInfoCompat(
            contentUri,
            new ClipDescription(imageDescription, new String[]{"image/gif"}),
            null
    );
    InputConnection inputConnection = getCurrentInputConnection();
    EditorInfo editorInfo = getCurrentInputEditorInfo();
    Int flags = 0;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1) {
        flags |= InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION;
    }
    InputConnectionCompat.commitContent(
            inputConnection, editorInfo, inputContentInfo, flags, null);
}