动态添加一个TextView

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如何一个TextView动态地添加到这个？注释掉code不起作用。

公共类myTextSwitcher延伸活动{     TextView的私人会将myText;     公共myTextSwitcher（字符串字符串）{         // =会将myText新的TextView（本）;         //myText.setText("My文本）;     } }

解决方案

您正在创建一个文本视图，并设置它的价值，但你不指定地点和方式应显示。你会将myText对象需要有某种这将使其可见的容器。

您正在试图做的是动态配置的图什么。看到这里href="www.dreamin$c$c/forums/topic/130521-android-part-iii-dynamic-layouts/" rel="nofollow">很好的入门文章一。从文章：

//这是在哪里以及如何在视图中使用 TextView的电视=新的TextView（本）; tv.setText（FTW动态布局！）; ll.addView（电视）; //这部分是那里的容器获得有线在一起 滚动型SV =新的滚动型（本）; 的LinearLayout LL =新的LinearLayout（本）; ll.setOrientation（LinearLayout.VERTICAL）; sv.addView（Ⅱ）;

How can I dynamically add a TextView to this? The commented out code doesn't work.

public class myTextSwitcher extends Activity { private TextView myText; public myTextSwitcher(String string){ //myText = new TextView(this); //myText.setText("My Text"); } }

解决方案

You're creating a text view and setting its value but you're not specifying where and how it should be displayed. Your myText object needs to have a container of some sort which will make it visible.

What you're trying to do is dynamically layout a view. See here for a good starter article. From the article:

// This is where and how the view is used TextView tv = new TextView(this); tv.setText("Dynamic layouts ftw!"); ll.addView(tv); // this part is where the containers get "wired" together ScrollView sv = new ScrollView(this); LinearLayout ll = new LinearLayout(this); ll.setOrientation(LinearLayout.VERTICAL); sv.addView(ll);