@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);//去掉标题栏
setContentView(R.layout.wk_main);
/*这里背景图片设置成功了*/
layout=(LinearLayout) findViewById(R.id.layout1);
resources = getResources();
btnDrawable = resources.getDrawable(R.drawable.app2_0);
layout.setBackgroundDrawable(btnDrawable);
/*到这里 就设置失败*/
btnDrawable = resources.getDrawable(R.drawable.app1_1);
layout.setBackgroundDrawable(btnDrawable);
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:layout_weight="1"
>
有人知道是怎么回事吗