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我使用下面的代碼更改子網格佈局邊距:Android:如何在線性佈局內設置網格佈局?
GridLayout grid = (GridLayout) findViewById(R.id.grid);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
params.setMargins(15,marginTop,15,marginBottom);
grid.setLayoutParams(params);
我收到錯誤消息
android.widget.GridLayout $的LayoutParams不能轉換爲android.widget .LinearLayout $的LayoutParams
我的XML文件是:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:orientation="vertical"
android:background="#fff5f5f5"
tools:context=".LinearLayout" >
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/grid"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="100dp"
android:layout_marginBottom="100dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_gravity="center"
android:columnCount="8"
android:rowCount="8"
android:orientation="horizontal">
</GridLayout>
</LinearLayout>
我應該改變什麼來擺脫錯誤?
是的。我嘗試過這一行:GridLayout.LayoutParams params = new GridLayout.LayoutParams()。相同的錯誤:( – 2015-02-10 02:41:21