如何添加Edittexts或布局块在我的活动需求？ [英] How can I add Edittexts or Layout-blocks on demand in my Activity?

问题描述

这是一个有点棘手解释，这可能是为什么我还没有发现在网络上的任何解决方案的原因至今...

我有一个包含两个变量的类 - 一个String和字符串的LinkedList的：

 字符串名称;
LinkedList的＆LT;串GT; StringList的;
 

通常StringList的弦乐1-4之间成立。现在，我想创建这说明对象的内容从这个类，显示的EditText字段动态，取决于值的LinkedList的量的活动。

我想象它看起来像这样当有列表中的4个值：

 标题：LT;名称＆gt;
=============
值：或其可StringList的[0]≥
值：或其可StringList的[1]≥
值：或其可StringList的[2]≥
值：或其可StringList的[3]≥
 

...和像这样，如果只有一个值：

 标题：LT;名称＆gt;
=============
值：或其可StringList的[0]≥
 

如何定义我的布局XML的文件才能够做到这一点？在我layoutfile，在我的code难道我宣布我的TextView，EditText上，结合只有一次再版，直到它匹配stringlist.length（）？我能以某种方式做到这一点的重复也为整个布局块？

解决方案

  //尝试这种方式，希望这将帮助你解决你的问题。
 

my.xml
    
    

 ＆LT;的EditText
        机器人：ID =@ + ID / edtTitle
        机器人：layout_height =WRAP_CONTENT
        机器人：layout_width =match_parent
        机器人：提示=标题/＆GT;    ＆LT;的LinearLayout
        机器人：ID =@ + ID / lnrDynamicString
        机器人：layout_height =WRAP_CONTENT
        机器人：layout_width =match_parent
        机器人：layout_marginTop =5DP
        机器人：方向=垂直＆GT;    ＆LT; / LinearLayout中＆GT;＆LT; / LinearLayout中＆GT;
 

MyActivity

 公共类MyActivity延伸活动{    我的我的;
    私人的EditText edtTitle;
    私人的LinearLayout lnrDynamicString;
    @覆盖
    公共无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.my）;        edtTitle =（EditText上）findViewById（R.id.edtTitle）;
        lnrDynamicString =（的LinearLayout）findViewById（R.id.lnrDynamicString）;        我=新我（）;
        my.setTitle（MyTitle）;
        LinkedList的＆LT;串GT; tempString =新的LinkedList＆LT;串GT;（）;
        tempString.add（Child1）;
        tempString.add（CHILD2）;
        tempString.add（Child3）;
        tempString.add（Child4）;
        tempString.add（Child5）;
        my.setStringlist（tempString）;        edtTitle.setText（my.getTitle（））;
        的for（int i = 0; I＆LT; my.getStringlist（）大小（）;我++）{
            的EditText edtChild =新的EditText（本）;
            edtChild.setLayoutParams（新ViewGroup.LayoutParams（ViewGroup.LayoutParams.MATCH_PARENT，ViewGroup.LayoutParams.WRAP_CONTENT））;
            edtChild.setId（ⅰ）;
            edtChild.setText（my.getStringlist（）获得（一））;
            lnrDynamicString.addView（edtChild）;
        }
    }}** **我
公共类我{
    公共字符串的getTitle（）{
        返回称号;
    }    公共无效的setTitle（字符串名称）{
        this.title =称号;
    }    私人字符串称号;    公众的LinkedList＆LT;串GT; getStringlist（）{
        返回StringList的;
    }    公共无效setStringlist（LinkedList的＆LT;串GT;的StringList）{
        this.stringlist = StringList的;
    }    私人的LinkedList＆LT;串GT; StringList的;
}
 

This is a bit tricky to explain, that's probably the reason why I haven't found any solution on the web so far...

I have a class which contains two variables - a String and a LinkedList of Strings:

String name;
LinkedList<String> stringlist;

stringlist normally holds between 1-4 Strings. Now I would like to create an Activity which shows the content of the objects from this class and shows EditText-fields dynamically, depending on the amount of values in the LinkedList.

I imagine it to look like this when there are 4 values in the list:

Title: <name>
=============
Value: <stringlist[0]>
Value: <stringlist[1]>
Value: <stringlist[2]>
Value: <stringlist[3]>

... and like this if there is only one value:

Title: <name>
=============
Value: <stringlist[0]>

How do I define my layout xml-file to be able to do this? Do I declare my "TextView-EditText-Combination" only once in my layoutfile and in my code to reprint this until it matches stringlist.length() ? Can I somehow do this repetition also for a whole layout-block?

解决方案

// try this way hope this will help you solve your problem.

my.xml

    <EditText
        android:id="@+id/edtTitle"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:hint="Title"/>

    <LinearLayout
        android:id="@+id/lnrDynamicString"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:layout_marginTop="5dp"
        android:orientation="vertical">

    </LinearLayout>

</LinearLayout>

MyActivity

public class MyActivity extends Activity {

    My my;
    private EditText edtTitle;
    private LinearLayout lnrDynamicString;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.my);

        edtTitle =(EditText) findViewById(R.id.edtTitle);
        lnrDynamicString=(LinearLayout)findViewById(R.id.lnrDynamicString);

        my = new My();
        my.setTitle("MyTitle");
        LinkedList<String> tempString = new LinkedList<String>();
        tempString.add("Child1");
        tempString.add("Child2");
        tempString.add("Child3");
        tempString.add("Child4");
        tempString.add("Child5");
        my.setStringlist(tempString);

        edtTitle.setText(my.getTitle());
        for (int i=0;i<my.getStringlist().size();i++){
            EditText edtChild = new EditText(this);
            edtChild.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
            edtChild.setId(i);
            edtChild.setText(my.getStringlist().get(i));
            lnrDynamicString.addView(edtChild);
        }


    }

}

**My**
public class My {
    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    private String title;

    public LinkedList<String> getStringlist() {
        return stringlist;
    }

    public void setStringlist(LinkedList<String> stringlist) {
        this.stringlist = stringlist;
    }

    private LinkedList<String> stringlist;
}

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