我想使用 ImageView 类在 GridView 布局中布局 8x8 图像网格,实际上只是 40x40px 图标。
我尝试过使用 ImageView 类的setLayoutParams和setScaleType方法,但未能达到预期的效果。这就是我所拥有的,但我只尝试了一个 3x3 的小图标网格,直到我掌握了它。
主要活动:
package com.topherwilso.ropasci;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.GridView;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
GridView gv = (GridView) findViewById(R.id.gridview);
gv.setAdapter(new ImageAdapter(getApplicationContext()));
}
@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;
}
}
还有我的 ImageAdapter 类:
package com.topherwilso.ropasci;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
public class ImageAdapter extends BaseAdapter {
int[] images = {
R.drawable.one, R.drawable.two,
R.drawable.three, R.drawable.four,
R.drawable.five, R.drawable.six,
R.drawable.seven, R.drawable.eight,
R.drawable.nine
};
private Context context;
public ImageAdapter(Context applicationContext){
context=applicationContext;
}
@Override
public int getCount() {
//Number of data elements to be displayed
return images.length;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView iv;
if(convertView != null){
iv = (ImageView) convertView;
}
else{
iv = new ImageView(context);
iv.setLayoutParams(new GridView.LayoutParams(120, 120));
iv.setScaleType(ScaleType.CENTER);
iv.setPadding(0, 0, 0, 0);
}
iv.setImageResource(images[position]);
return iv;
}
}
这就是现在的样子
这是我想要的,