Java-Android-使用LinearLayout制作ScrollView

概述我想做一个带有LinearLayout的ScrollView.线性布局包含6个具有背景CYAN,BLUE,CYAN,BLUE等的视图.这是代码：publicclassTouchActivityextendsActivity{TouchedViewTouchView;publicvoidonCreate(Bundleicicle){super.onCreate(icicle);

我想做一个带有linearLayout的ScrollVIEw.线性布局包含6个具有背景CYAN,BLUE,CYAN,BLUE等的视图.这是代码：

public class touchActivity extends Activity{    touchedVIEw touchVIEw;    public voID onCreate(Bundle icicle)     {        super.onCreate(icicle);        touchVIEw = new touchedVIEw(this);        touchVIEw.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT , LayoutParams.WRAP_CONTENT) );        //setContentVIEw(touchVIEw);        setContentVIEw(touchVIEw.VIEwLayout);    }    class touchedVIEw extends ScrollVIEw    {        linearLayout VIEwLayout;        ListElement Elem1;        ListElement Elem2;        ListElement Elem3;        ListElement Elem4;        ListElement Elem5;        ListElement Elem6;        public touchedVIEw(Context context)         {            super(context);            VIEwLayout = new tableLayout(touchActivity.this);            VIEwLayout.setorIEntation(linearLayout.VERTICAL);            Elem1 = new ListElement(touchActivity.this , "CYAN");            Elem1.setLayoutParams(new tableLayout.LayoutParams(LayoutParams.MATCH_PARENT , 100 ) );            Elem2 = new ListElement(touchActivity.this , "BLUE");            Elem2.setLayoutParams(new tableLayout.LayoutParams(LayoutParams.MATCH_PARENT , 100 ) );            Elem3 = new ListElement(touchActivity.this , "CYAN");            Elem3.setLayoutParams(new tableLayout.LayoutParams(LayoutParams.MATCH_PARENT , 100 ) );            Elem4 = new ListElement(touchActivity.this , "BLUE");            Elem4.setLayoutParams(new tableLayout.LayoutParams(LayoutParams.MATCH_PARENT , 100 ) );            Elem5 = new ListElement(touchActivity.this , "CYAN");            Elem5.setLayoutParams(new tableLayout.LayoutParams(LayoutParams.MATCH_PARENT , 100 ) );            Elem6 = new ListElement(touchActivity.this , "BLUE");            Elem6.setLayoutParams(new tableLayout.LayoutParams(LayoutParams.MATCH_PARENT , 100 ) );            VIEwLayout.addVIEw(Elem1);            VIEwLayout.addVIEw(Elem2);            VIEwLayout.addVIEw(Elem3);            VIEwLayout.addVIEw(Elem4);            VIEwLayout.addVIEw(Elem5);            VIEwLayout.addVIEw(Elem6);            setFillVIEwport(false);            setContentVIEw(VIEwLayout);        }    }    class ListElement extends VIEw    {        public ListElement(Context context , String Typename)         {            super(context);            if(Typename.compareto("CYAN") == 0) this.setBackgroundcolor(color.CYAN);            if(Typename.compareto("BLUE") == 0) this.setBackgroundcolor(color.BLUE);            }    }}

结果是6视图太大而无法包含在linearLayout中：

http://img513.imageshack.us/img513/5406/androidbadscrollview2.jpg

但是如果我评论setContentVIEw(touchVIEw.VIEwLayout);我取消注释// setContentVIEw(touchVIEw);我的活动应该使用ScrollVIEw而不是linearLayout填充,但是不幸的是我什么也看不到.

请注意,ScrollVIEw包含由setContentVIEw(VIEwLayout)设置的linearLayout.

解决方法:

查看http://www.vogella.com/articles/Android/article.html#gridlayout_scrollview

除了TextVIEw,您可以声明任何您想要的子级.
重要的是您的滚动视图只具有一个字段(即linearLayout).
此外,您应该始终在xml中尽可能多地编码布局！

<?xml version="1.0" enCoding="utf-8"?><ScrollVIEw xmlns:androID="http://schemas.androID.com/apk/res/androID"    androID:layout_wIDth="fill_parent"    androID:layout_height="fill_parent"    androID:fillVIEwport="true"    androID:orIEntation="vertical" >    <linearLayout        androID:ID="@+ID/linearLayout01"        androID:layout_wIDth="fill_parent"        androID:layout_height="wrap_content"        androID:orIEntation="vertical" >        <TextVIEw            androID:ID="@+ID/TextVIEw01"            androID:layout_wIDth="wrap_content"            androID:layout_height="wrap_content"            androID:text="This is a header">        </TextVIEw>    </linearLayout></ScrollVIEw>

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