创建画面和数据访问层在Android底层动态 [英] Creating screens and underlying data access layer dynamically on Android

问题描述

我想允许用户创建自定义界面动态通过的运行的，即一切都应该在App做在手机上从现有的字段集选择。

I want to allow the user to create "custom screens" dynamically by selecting from a existing set of fields at runtime i.e., everything should be done on App on the phone.

例如 - 现有油田集= {名称，位置，图片，年龄} 。

For example - existing set of fields = {name, location, picture, age}.

用户A要创建域的名称，位置和年龄的一个新的屏幕。

User A wants to create a new screen with fields name, location and age.

和用户B都想拥有，只有名字和照片的屏幕。

and User B wants to have a screen with only name and picture.

这些画面应该是持久的，并应能够保存，查询和在手机上的本地数据库信息进行编辑。

These screens should be persistent and should be able to save, query and edit information in a local database on the phone.

有关如何实现这一点在Android将成为AP preciated任何帮助。

Any help about how to achieve this in Android will be appreciated.

感谢。

推荐答案

您将要在Java中动态创建这些视图（不使用布局）。我会放在一起某种XML模式，然后将其保存无论是在DB或设备上。然后，你可以做的事情，如：

You will want to create these views dynamically in Java (not using layouts). I would put together some sort of XML schema, and then save it either in the DB or on the device. Then you could do things such as:

//pseudo-code
while (xmlDoc isn't empty) {
View v = null;
if (XML says to create a text view) {
    v = new TextView(this);
    ...
}
else if (XML says to create an ImageView) {
    v = new ImageView(this);
    ...
}
add v to the LinearLayout or whatever type of root view will be passed to setContentView().

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