我有大约6到7个图像显示在图像查看时,当我点击一个按钮。我创建了以下代码。没有错误显示,但当我点击按钮没有行动。请帮我图像不显示图像查看
这里是我的代码
package com.ditmi.courseInfoApp;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
public class ChangeImage extends Activity {
private ImageView Image;
private Button iButton;
private int currentImage = 0;
int[] images = { R.drawable.dzongkha, R.drawable.mouse, R.drawable.itom, R.drawable.icon, R.drawable.lap, R.drawable.office };
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.course_detail);
Image = (ImageView)findViewById(R.id.imageView);
iButton = (Button)findViewById(R.id.btnChangeImage);
//Just set one Click listener for the image
iButton.setOnClickListener(iButtonChangeImageListener);
}
View.OnClickListener iButtonChangeImageListener = new OnClickListener() {
public void onClick(View v) {
//Increase Counter to move to next Image
currentImage++;
currentImage = currentImage`enter code here` % images.length;
Image.setImageResource(images[currentImage]);
}
};
}
那是什么您会收到错误更改订单?或者你收到任何错误?我已经测试了你的代码,并且它工作正常(当所有图像加载时数组越界) – 2014-09-19 09:50:12
java.lang.NullPointerException。这是我得到的错误。 – 2014-09-20 04:37:57