android+js调用相册

WebView webView = findViewById(R.id.webview);
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);

public class WebAppInterface {
    Context mContext;

    /** Instantiate the interface and set the context */
    WebAppInterface(Context c) {
        mContext = c;
    }

    /** Show a toast from the web page */
    @JavascriptInterface
    public void openGallery() {
        Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        ((Activity) mContext).startActivityForResult(intent, REQUEST_CODE_GALLERY);
    }
}

webView.addJavascriptInterface(new WebAppInterface(this), "Android");

function openGallery() {
    Android.openGallery();
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REQUEST_CODE_GALLERY && resultCode == RESULT_OK && data != null) {
        Uri selectedImage = data.getData();
        // 处理选中的图片，例如显示在ImageView中或上传到服务器
    }
}