我想使用ImageView类在GridView布局中布局8x8网格图像,实际上只是40x40px图标。
我尝试过使用ImageView类的 setLayoutParams 和 setScaleType 方法,但无法实现所需的效果。这就是我所拥有的,但我正在尝试只有一个3x3网格的小图标,直到我掌握它为止。
主要活力:
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;
}
}
我的ImageAdapter课程:
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,
这就是我想要的,
答案 0 :(得分:3)
尝试以下
<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gridview"
android:padding="40dp"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:columnWidth="0dp"
android:numColumns="3" // set the number of columns to 3
android:verticalSpacing="20dp"
android:horizontalSpacing="20dp"
android:gravity="center"
/>
http://developer.android.com/guide/topics/ui/layout/gridview.html
http://developer.android.com/reference/android/widget/GridView.html
无法指定行数。如果上述方法不起作用,您可以使用TableLayout而不是gridview。在您的情况下,您有9个图标,因此将列号设置为3应该可行。
对于TableLayout
http://developer.android.com/reference/android/widget/TableLayout.html