將屬性從xml添加到動態添加的ImageButton

我想動態地將ImageButton s添加到基於目錄中圖像的佈局，但我希望它們都具有與xml文件中指定的格式相同的格式。將屬性從xml添加到動態添加的ImageButton

我已經試過這

XmlPullParser parser = res.getXml(R.layout.imagebuttons); 
    AttributeSet attributes = Xml.asAttributeSet(parser); 
    setLayoutParams(new LayoutParams(context, attributes));

閱讀本XML

<?xml version="1.0" encoding="utf-8"?> 
<ImageButton xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="90" 
    android:layout_height="160" 
    android:scaleType="fitCenter" 
    android:onClick="zoomImageFromThumb" > 
</ImageButton>

，但我得到這個錯誤

E/AndroidRuntime(16602): java.lang.RuntimeException: Unable to start activity ComponentInfo{package/package.MainActivity}: java.lang.RuntimeException: 
Binary XML file line #-1: You must supply a layout_width attribute. 
E/AndroidRuntime(16602):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 
E/AndroidRuntime(16602):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
E/AndroidRuntime(16602):  at android.app.ActivityThread.access$600(ActivityThread.java:130) 
E/AndroidRuntime(16602):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
E/AndroidRuntime(16602):  at android.os.Handler.dispatchMessage(Handler.java:99) 
E/AndroidRuntime(16602):  at android.os.Looper.loop(Looper.java:137) 
E/AndroidRuntime(16602):  at android.app.ActivityThread.main(ActivityThread.java:4745) 
E/AndroidRuntime(16602):  at java.lang.reflect.Method.invokeNative(Native Method) 
E/AndroidRuntime(16602):  at java.lang.reflect.Method.invoke(Method.java:511) 
E/AndroidRuntime(16602):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
E/AndroidRuntime(16602):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
E/AndroidRuntime(16602):  at dalvik.system.NativeStart.main(Native Method) 
E/AndroidRuntime(16602): Caused by: java.lang.RuntimeException: Binary XML file line #-1: You must supply a layout_width attribute. 
E/AndroidRuntime(16602):  at android.content.res.TypedArray.getLayoutDimension(TypedArray.java:491) 
E/AndroidRuntime(16602):  at android.view.ViewGroup$LayoutParams.setBaseAttributes(ViewGroup.java:5458) 
E/AndroidRuntime(16602):  at android.view.ViewGroup$LayoutParams.<init>(ViewGroup.java:5411) 
E/AndroidRuntime(16602):  at package.ImageButtons.<init>(ImageButtons.java:27) 
E/AndroidRuntime(16602):  at package.MainActivity.onCreate(MainActivity.java:49) 
E/AndroidRuntime(16602):  at android.app.Activity.performCreate(Activity.java:5122) 
E/AndroidRuntime(16602):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1089) 
E/AndroidRuntime(16602):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 
E/AndroidRuntime(16602):  ... 11 more

我迷路了，至於如何解決這個問題，有什麼明顯的我失蹤了嗎？

來源

2013-08-27 Cob50nm

你忘了提及「DP」在XML文件中的寬度和高度屬性：

<?xml version="1.0" encoding="utf-8"?> 
<ImageButton xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="90dp" 
    android:layout_height="160dp" 
    android:scaleType="fitCenter" 
    android:onClick="zoomImageFromThumb" > 
</ImageButton>

來源

2013-08-27 14:00:25

加了他們，還是一樣的錯誤 – Cob50nm

這是一件難以置信的簡單，我沒有實際使用的解析器，我推測AttributesSet這樣做。這是我用過的I cannot read the AttributeSet from my XML resources

來源

2013-08-27 15:05:43 Cob50nm

將屬性從xml添加到動態添加的ImageButton

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