Android 如何将布局视图与活动连接
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How to connect a layout view with an activity
提问by Andy Jacobs
In my main view, I have:
在我的主要观点中，我有：
public class PlayersActivity extends Activity {
ViewFlipper flipper;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.playercontainer);
flipper = (ViewFlipper) findViewById(R.id.flipper);
}
}
with this view:
有了这个观点：
<ViewFlipper xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/flipper"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<include android:id="@+id/first" layout="@layout/first" />
<include android:id="@+id/second" layout="@layout/playerdetailsview" />
</ViewFlipper>
It displays the first view correctly but I want it to be connected to a java class so I created an FirstActivity class where I can control all my components in the first view but how do I attach the first.xml layout with the FirstActivity java class ?
它正确显示第一个视图，但我希望它连接到一个 java 类，所以我创建了一个 FirstActivity 类，我可以在其中控制第一个视图中的所有组件，但是如何将 first.xml 布局与 FirstActivity java 类附加？
回答by RickNotFred
Say your new xml file is foo.xml:
假设您的新 xml 文件是foo.xml：
- Put
foo.xmlfile in yourres/layoutdirectory. - In your new class use
setContentView(R.layout.foo); - Specify your new class in your manifest file.
- 将
foo.xml文件放在您的res/layout目录中。 - 在你的新课程中使用
setContentView(R.layout.foo); - 在清单文件中指定新类。
See also the topic on declaring layout.
另请参阅有关声明布局的主题。
回答by Mohammad Faisal
1) Create an xml file (say foo.xml).
2) Put foo.xmlin res/layoutdirectory.
3) Edit foo.xmland put some android layout code and save it. e.g.,
1）创建一个xml文件（比如foo.xml）。
2）将foo.xml在res/layout目录中。
3）编辑foo.xml并放置一些android布局代码并保存。例如，
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ViewFlipper android:id="@+id/viewFlipper1"
android:layout_width="match_parent"
android:layout_height="wrap_content"></ViewFlipper>
</LinearLayout>
4) In your new activity class put
4）在你的新活动课上放
setContentView(R.layout.foo);
For creating an activity see this answer
要创建活动，请参阅此答案
I guess the problem with your xml file is that you had not specified any layout for the activity.
我猜您的 xml 文件的问题在于您没有为活动指定任何布局。
回答by CaptainStony
Not so hard to link 2 layouts just do :
链接 2 个布局并不难，只需执行以下操作：
@Override
public void onClick(View args0) {
setContentView(R.layout.aardelayout);
}
回答by user2046604
Change the name from FirstActivity to firstactivity. Layout is not accept the caps, I was faced the same problem.
将名称从 FirstActivity 更改为 firstactivity。布局不接受大写，我遇到了同样的问题。
