I have one html file with applet class and one java file in same directory. While I am calling java method from javascript using applet I got an error like:
applet method is not a function
How to call java method from javascript?
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2 Answers
If your applet name is "myApp".
Then you have this method inside it for example,
public void hi() {
Graphics g = getGraphics();
g.drawString("wads up", 10, 10);}
You can call
<INPUT type="button" value="call method"
onClick = "document.appName.hi()">
Update
if you wish to accept parameters in your app, you need to specify this in your applet codes:
String para = this.getParameter("fromPage");
and you can have
<PARAM name="fromPage" value="Param Sent to Applet!">
from within the applet tags to pass it to the applet
1 Comment
Andrew Thompson
Graphics g = getGraphics(); That's not the correct way to do custom rendering in AWT or Swing.I have a technique to call javascript from java or java from javascript. Do this on web:
<a href="file:///android_asset/YourFile.html?q=true"></a>
And do this on java:
webview1.loadUrl("file:///android_asset/YourFile.html");
new Timer().scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
if (webview1.getUrl().contains("?q=true")) {
webview1.loadUrl("file:///android_asset/YourFile.html");
// YOUR CODE HERE
}
}
});
}
}, 20, 20);
How it works? Web can change the URL easily. (i use "?q=true") and java can get the webview's URL. every 20ms, java get the url and check if the url contains "?q=true" then run the code. you can also call a javascript function using java by reversing the code!
