如何使用getResource.getIdentifier()来获取布局? [英] How to use getResource.getIdentifier() to get Layout?
问题描述
我有一个问题,每个人。
I have a question,everyone.
我想用getResource.getIdentifier()得到的XML我的布局元素(布局/ xxx.xml)。
I want to use getResource.getIdentifier() to get my layout element in XML (layout/xxx.xml).
但我遭遇资源ID#0x7f070003型#0×12是无效...错误消息。
But I am encounter " Resource ID #0x7f070003 type #0x12 is not valid..." error message.
我不kwnow如何修复这个问题。
I don't kwnow how to fixed this problem.
我是用一个方法返回的LinearLayout。
I am use a method return linearlayout.
这是我下面的code:
It's my code below:
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getWeekOfDay(2).setBackgroundColor(Color.RED);
}
private LinearLayout getWeekOfDay(int n)
{
int layoutID = getResources().getIdentifier("layout"+n, "id", getPackageName());
return (LinearLayout) LayoutInflater.from(this).inflate(layoutID, null);
}
....
...
..
}
我的设计有很多的LinearLayout,但名称相似(布局1,布局2,layout3 ...)。
My layout have many linearlayout, but the name is similar(layout1, layout2, layout3...).
我要使用调用方法来获取指定的元素。
I want to use call method get appoint element.
我的布局code是如下:
my layout code is below:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<LinearLayout
android:id="@+id/layout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.37"
android:background="#cccccc" >
<TextView
android:id="@+id/TextView03"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="test1" />
</LinearLayout>
<LinearLayout
android:id="@+id/layout2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.37"
android:background="#cccccc" >
<TextView
android:id="@+id/TextView02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="test2" />
</LinearLayout>
<LinearLayout
android:id="@+id/layout3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.37"
android:background="#cccccc" >
<TextView
android:id="@+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="test3" />
</LinearLayout>
<LinearLayout
android:id="@+id/layout4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.37"
android:background="#cccccc" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="test4" />
</LinearLayout>
但Java code将返回错误。
But the java code will return error .
该错误消息如下:
: FATAL EXCEPTION: main
: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.testdemo/com.example.testdemo.MainActivity}: android.content.res.Resources$NotFoundException: Resource ID #0x7f070003 type #0x12 is not valid
: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2194)
: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2229)
: at android.app.ActivityThread.access$600(ActivityThread.java:139)
: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1261)
: at android.os.Handler.dispatchMessage(Handler.java:99)
: at android.os.Looper.loop(Looper.java:154)
: at android.app.ActivityThread.main(ActivityThread.java:4945)
: at java.lang.reflect.Method.invokeNative(Native Method)
: at java.lang.reflect.Method.invoke(Method.java:511)
: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
: at dalvik.system.NativeStart.main(Native Method)
: Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f070003 type #0x12 is not valid
: at android.content.res.Resources.loadXmlResourceParser(Resources.java:2358)
: at android.content.res.Resources.getLayout(Resources.java:952)
: at android.view.LayoutInflater.inflate(LayoutInflater.java:394)
: at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
: at com.example.testdemo.MainActivity.getWeekOfDay(MainActivity.java:25)
: at com.example.testdemo.MainActivity.onCreate(MainActivity.java:19)
: at android.app.Activity.performCreate(Activity.java:4531)
: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1071)
: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2150)
: ... 11 more
有任何人知道这个问题?如何解决这个问题呢?
Have anyone know this problem? How to resolve this problem?
非常感谢你。 :)
推荐答案
通过这样的:
int layoutID = getResources().getIdentifier("layout"+n, "layout", getPackageName());
你基本上检索可以膨胀的布局文件的ID。它的动态版本
you basically retrieve the id of a layout file that you can inflate. It's the dynamic version of
int layoutID = R.layout.layout1;
您打算做的是检索一个已经膨胀布局的视图。这就是你如何做到这一点:
What you intend to do is retrieve a view from an already inflated layout. That's how you'd do it:
int layoutID = getResources().getIdentifier("layout"+n, "id", getPackageName());
return (LinearLayout)findViewById(layoutID);
这就是动态版
That's the dynamic version of
return (LinearLayout)findViewById(R.id.layout1);
这篇关于如何使用getResource.getIdentifier()来获取布局?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!