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我有4个按钮,我想在GridView中显示。我希望他们尽可能地填满屏幕,但我从来没有做到。我已经尝试过所有类型的ScaleType,它不会起作用。现在我有FIT_CENTER中的缩放类型,但我得到了意想不到的结果。下面的代码我到目前为止:按钮调整大小问题Android
Main.java
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Display screenSize = getWindowManager().getDefaultDisplay();
int screenWidth = screenSize.getWidth();
int screenHeight = screenSize.getHeight();
int iconWidth = screenWidth/4;
int iconHeight= screenHeight/2;
GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(new ImageAdapter(this, iconWidth, iconHeight));
}
ImageAdapter.java
public View getView(final int position, View convertView, ViewGroup parent) {
ImageView imageView;
if (convertView == null) {
imageView = new ImageView(m_Context);
imageView.setLayoutParams(new GridView.LayoutParams(m_width, m_height));
imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
imageView.setPadding(8, 8, 8, 8);
} else {
imageView = (ImageView) convertView;
}
imageView.setImageResource(mThumbIds[position]);
return imageView;
}
GridViewLayout.xml
<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gridview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:columnWidth="90dp"
android:stretchMode="columnWidth"
android:gravity="center"
android:numColumns="2"
android:background="#FFFFFF"/>
代码的结果是这样的:
这是我想它是什么样子:
注意最后截屏硬编码这显然不是我的愿望。我希望这可以在没有硬编码的情况下适用于每种屏幕尺寸。
可能是这可以帮助你...但这已经完成了线性布局http://stackoverflow.com/questions/2581481/assign-width-to-half-available-screen-width-claclaratively – DeRagan 2011-02-01 11:30:24