Android Question ZoomImageView2,how to add new event:CallSubAnyArgs(ParamArray args())

xiaoyao said:

Error description: Too many parameters.
An error occurs in the following line: 257
：257
CallSub3(mCallBack, mEventName & "_ZoomEvent", CurrentScale, CenterX, CenterY)
word: _ref

B4X:

Else if Action = pnl.TOUCH_ACTION_UP Then
        TouchDown = False
 
[B]how to CallSub4,CallSub5?CallSub(any args?:confused:[/B]
 
                 
        If DateTime.Now - ClickStart < ClickThreshold And DisableClickEvent = False Then
            Sleep(1)
            If xui.SubExists(mCallBack, mEventName & "_ZoomEvent", 3) Then
                CallSub3(mCallBack, mEventName & "_ZoomEvent", CurrentScale, CenterX, CenterY)
            End If
     
            If xui.SubExists(mCallBack, mEventName & "_Click", 0) Then
                CallSub(mCallBack, mEventName & "_Click")
            End If
        End If

B4X:

Private Sub ZoomChanged (x As Int, y As Int, ZoomDelta As Float)
    Dim ivx As Float = x - pnlBackground.Left
    Dim ivy As Float = y - pnlBackground.Top
    ZoomDelta = Max(ZoomDelta, mBase.Width / pnlBackground.Width)
    pnlBackground.SetLayoutAnimated(0, x - ivx * ZoomDelta, y - ivy * ZoomDelta, pnlBackground.Width * ZoomDelta, pnlBackground.Height * ZoomDelta)
    SetImageViewLayout
    UpdateScaleAndCenter
 
    If xui.SubExists(mCallBack, mEventName & "_ZoomEvent", 3) Then
        CallSub3(mCallBack, mEventName & "_ZoomEvent", CurrentScale, CenterX, CenterY)
    End If
     
End Sub

Click to expand...

Sagenut said:

If you need to pass many parameters then you should use CallSub2 and put a Map, a List or a Type with all what you need to pass as a unique parameter.

Click to expand...

Sub Sum (ParamArray intNums ())
   For Each x In intNums
      y = y + x
   Next x
   intSum = y
End Sub
call    Sum (1, 3, 5, 7, 8)
result= Sum (1, 3, 5, 7, 8)

public class ClassB {
    public String downurl(String url, int timeout, String CHARSET) {
        System.out.println("URL：" + url);
        System.out.println("Timeout：" + timeout);
        System.out.println("Charset：" + CHARSET);
        return "Download completed";
    }
}

import java.lang.reflect.Method;
 
public class CallMethodUtil {
    public static Object callMethod(Object obj, String methodName, Object... params) throws Exception {
        Class<?> clazz = obj.getClass();
        Class<?>[] paramTypes = new Class[params.length];
        for (int i = 0; i < params.length; i++) {
            paramTypes[i] = params[i].getClass();
        }
        Method method = clazz.getMethod(methodName, paramTypes);
        return method.invoke(obj, params);
    }
}

 ClassB b = new ClassB();
            Object result = CallMethodUtil.callMethod(
                b,
                "downurl",
                "https://www.baidu.com",
                5000,
                "UTF-8"
            );
            System.out.println("Return result：" + result);

Sagenut said:

You do not need to copy the intellisense hint.
When you will write the command

B4X:

ZoonImageView1.SetBitmapEX(

then the hint will come up by itself indicating you which parameters are needed.

Click to expand...

xiaoyao said:

how to load pictures auto zoom to (2.3,showPIC x,y)?
how to cpy function info by tips?

Private Sub ZoomImageView1_ZoomEvent(CurrentScale As Float, CenterX As Float, CenterY As Float)

txt1.Text= CurrentScale & ",xy=" & CenterX & "," & CenterY
End Sub
View attachment 171624

Click to expand...