Android studio 请检查你是否在你的工作室里安装了java文档。它对我也不起作用。也许，它是在某种特殊的钥匙图中工作的。可以在Preferences>keymap中配置keymap。或者钥匙图已经编辑好了。这个问题是50/50。您正在寻找在整个文档中生成javadoc的单个

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请检查你是否在你的工作室里安装了java文档。它对我也不起作用。也许，它是在某种特殊的钥匙图中工作的。可以在Preferences>keymap中配置keymap。或者钥匙图已经编辑好了。这个问题是50/50。您正在寻找在整个文档中生成javadoc的单个javadoc块。是哪一个？ALTR+ENTER显示您可以生成已声明方法的注释的视图。可能您应该为其添加一个实时模板（Android studio-设置-编辑器-实时模板-添加）。在模板文本字段中添加以下文本。/***$comment$*/这非常有效。安装JavaDoc插件（如上所述），然后按CNTL+SHIFT+ALT+G。不适用于kotlinfor kotlin请参阅以下链接，这是添加文档的最方便的方法。例如，我已指定“'”并输入快捷方式

/**
* @param a
* @param b
*/

public void add(int a, int b) {
    //code here
}

   *** Install JavaDoc Plugin ***



     1.Press shift twice and  Go to Plugins.
     2. search for JavaDocs plugin
     3. Install it. 
     4. Restart Android Studio.
     5. Now, rightclick on Java file/package and goto 
        JavaDocs >> create javadocs for all elements
        It will  generate all default comments.

/**
 * Returns an Image object that can then be painted on the screen. 
 * The url argument must specify an absolute {@link URL}. The name
 * argument is a specifier that is relative to the url argument. 
 * <p>
 * This method always returns immediately, whether or not the 
 * image exists. When this applet attempts to draw the image on
 * the screen, the data will be loaded. The graphics primitives 
 * that draw the image will incrementally paint on the screen. 
 *
 * @param  url  an absolute URL giving the base location of the image
 * @param  name the location of the image, relative to the url argument
 * @return      the image at the specified URL
 * @see         Image
 */
 public Image getImage(URL url, String name) {
        try {
            return getImage(new URL(url, name));
        } catch (MalformedURLException e) {
            return null;
        }
 }

 /**
 *
 * @param action          The action to execute.
 * @param args            The exec() arguments.
 * @param callbackContext The callback context used when calling back into JavaScript.
 * @return
 * @throws JSONException
 */