Android 控件之GridView图片表格控件

Android 控件之GridView图片表格控件

1.首先创建工程，在主布局文件中添加一个GridView控件。

2.找足够的图片放在资源文件下。

3.在主Activity中进行相应的操作。代码如下：

package com.example.android_gridview;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends Activity {
private GridView gridView;
private ImageAdapter adapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
gridView = (GridView) this.findViewById(R.id.gridview);
adapter = new ImageAdapter();
gridView.setAdapter(adapter);
gridView.setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
Toast.makeText(MainActivity.this, "你选择了" + position, 0).show();

}
});
}

public class ImageAdapter extends BaseAdapter {
private int[] images = { R.drawable.logo1, R.drawable.logo2,
R.drawable.logo3, R.drawable.logo4, R.drawable.logo5,
R.drawable.logo6, R.drawable.logo7, R.drawable.logo8 };

@Override
public int getCount() {
// TODO Auto-generated method stub
return images.length;
}

@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return images[position];
}

@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
// 手工创建View对象
// 加载xml文件
ImageView imageView = null;
if (convertView == null) {
imageView = new ImageView(MainActivity.this);
} else {
imageView = (ImageView) convertView;
}

imageView.setLayoutParams(new GridView.LayoutParams(85, 85));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(0, 0, 0, 0);

imageView.setImageResource(images[position]);
return imageView;
}

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}

检查无误之后即可运行。