0

这让我发疯了......

我想用按钮构造函数传递一些参数

我确实创建了 myButton 扩展按钮：

package com.canbluetoothinterface.utilities;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import android.view.View.OnClickListener;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class myActivityStartButton extends Button implements OnClickListener {

protected EditText[] Array;
private String Name;
private String BufferName;
private Activity activityinstance;
public String[] sValues;
Class<?> cls;
private Method m;


public myActivityStartButton(String Name, Class<?>clsin, Context context) {
    super(context);
    cls = clsin;
    activityinstance = (Activity) context;
    setId(mygetId());
    this.Name = Name;
    init();

}

private void init(){
    setOnClickListener(this);
}

public myActivityStartButton(String Name, Class<?>clsin, Context context, Method min) {
    super(context);
    this.cls = clsin;
    this.Name = Name;
    this.m = min;
    activityinstance = (Activity) context;
    setId(mygetId());
    setTag(findViewById(mygetId()));

    init();

}

@Override
public void setId(int id) {

    super.setId(id);
}

private int mygetId() {
    int id = 0;
    BufferName = Name; 
    id = activityinstance.getResources().getIdentifier(BufferName, "id", activityinstance.getPackageName());
    return id;
}

@Override
public void onClick(View v) {
    try {
        m.invoke(null, (Object)null);
    } catch (IllegalArgumentException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (InvocationTargetException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    Intent intent = new Intent(activityinstance, cls );
    activityinstance.startActivity(intent);

}


}

在我的活动中，我调用：

Start = new myActivityStartButton("act_testdriveconfiguration_btn_start", DeviceListActivity.class, this, mstartbutton);

但是我的 OnClick 永远不会被调用......我做错了什么？

谢谢

4

1 回答 1

1

1.仔细检查您的 init() 是否被调用。

以下代码适用于我。

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    RelativeLayout layout = (RelativeLayout) findViewById(R.id.main_container);

    SomeButton btn = new SomeButton(this);

    layout.addView(btn);
}


private class SomeButton extends Button implements OnClickListener {

    public SomeButton(Context context) {
        super(context);

        init();
    }

    private void init() {
        setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {

        Log.w("log", "click");
    }

}

笔记：

如果您的按钮是在 xml 中创建的，则需要这些构造函数。

   public setParams(String Name, Class<?>clsin,etc params)
   {
     //saving params
   }

   public SomeButton(Context context) {
        super(context);

        init();
    }

    public SomeButton(Context context, AttributeSet attrs) {
        super(context, attrs);

        init();
    }

    public SomeButton(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);

        init();
    }
于 2013-07-22T09:17:38.783 回答