xml vs java LinearLayout填充

时间:2010-03-14 16:31:16

标签: xml android user-interface android-linearlayout

下面的xml版本正确处理高度和宽度,java不是缺少的java?

XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="fill_parent" android:layout_width="fill_parent"
    android:orientation="horizontal">
    <include android:id="@+id/cell1" layout="@layout/grid_text_view" />
    <include android:id="@+id/cell2" layout="@layout/grid_text_view" />
</LinearLayout>

的java

LinearLayout ll = new LinearLayout(this);
ll.setOrientation(LinearLayout.HORIZONTAL);
ll.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
ll.addView((TextView)this.getLayoutInflater().inflate(R.layout.grid_text_view, null));
ll.addView((TextView)this.getLayoutInflater().inflate(R.layout.grid_text_view, null));
setContentView(ll);

grid_text_view

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_height="fill_parent"
  android:layout_width="0dip"
  android:text="1"
  android:textSize="20sp"
  android:gravity="center"
  android:layout_weight="1" />

我尝试了ll.invalidate(),但它也没有用? :(

http://www.flickr.com/photos/48409507@N06/sets/72157623618407586/

的屏幕截图

1 个答案:

答案 0 :(得分:2)

您将传递null作为inflate()方法的第二个参数。这将防止布局inflater为膨胀的View生成适当的LayoutParams。而不是传递null,传递ll,父LinearLayout。请注意,如果您调用inflate(R.layout.mytextview,ll,true),您甚至不需要调用addView()。最后一个参数true表示“将膨胀的视图附加到父级。”