Android 从 xml 加载 imageView
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load an imageView from xml
提问by Antilope
I want to use a command like this:
我想使用这样的命令：
ImageView image = (ImageView) findViewById(R.id.x2);
where should I put in the file main.xmlthe following piece of code?
我应该将main.xml以下代码放在文件中的什么位置？
<ImageView
android:id="@+id/x2"
android:src="@drawable/book"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
回答by SolArabehety
Dheeresh Singh is ok. main.xml:
Dheeresh Singh 还行。主文件：
<?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" >
<ImageView
android:id="@+id/x2"
android:src="@drawable/book"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
If you want to position the image in a different place, you can modify different attributes
如果想把图片定位在不同的地方，可以修改不同的属性
<ImageView
android:id="@+id/x2"
android:src="@drawable/book"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="42dp" <!--for example -->
android:layout_marginLeft="25dp"
android:layout_marginRight="25dp"
android:layout_marginTop="25dp"/>
For more information about this, look at the android tutorials
有关这方面的更多信息，请查看 android 教程
http://developer.android.com/reference/android/widget/ImageView.html(for ImageView attributes) http://developer.android.com/resources/tutorials/views/index.html(for view info)
http://developer.android.com/reference/android/widget/ImageView.html（用于 ImageView 属性） http://developer.android.com/resources/tutorials/views/index.html（用于查看信息）
Excuse me for my english. Good Luck!
请原谅我的英语。祝你好运！
回答by Dheeresh Singh
Set in your layout xml of the activity which you set in setContentView(r.layout.<id>)
在您设置的活动的布局 xml 中设置 setContentView(r.layout.<id>)
please refer tutorial to set setContentView
请参考教程设置 setContentView
回答by Andrey Ermakov
As described in XML Layoutsdeveloper guide you should create your main.xmlunder /res/layout/ and put ImageViewinside one of available layoutslike that:
如XML 布局开发人员指南中所述，您应该main.xml在 /res/layout/ 下创建您的布局，并将其ImageView放入以下可用布局之一：
<?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" >
<ImageView
android:id="@+id/x2"
android:src="@drawable/book"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
