Ich versuche, Code in Android zu schreiben, um Parameter in einem AttributeSet
aus attrs.xml-Datei festzulegen. Aber ich erhalte den Fehler "Ressource nicht gefunden".Wie erstelle ich ein AttributSet in Android?
Java-Code
MainActivity.java
package com.example.mycompoundbutton;
import org.xmlpull.v1.XmlPullParser;
import android.os.Bundle;
import android.util.AttributeSet;
import android.util.Xml;
import android.app.Activity;
import android.content.res.Resources;
public class MainActivity extends Activity
{
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Resources res = this.getResources();
XmlPullParser parser = res.getXml(R.attr.xyz);
AttributeSet attrs = Xml.asAttributeSet(parser);
MyCompound my = new MyCompound(this,attrs);
my.MyTestFun(300,500);
}
}
MyCompound.java
package com.example.mycompoundbutton;
import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.widget.CompoundButton;
public class MyCompound extends CompoundButton
{
public MyCompound(Context context, AttributeSet attrs)
{
super(context, attrs);
TypedArray a = context.obtainStyledAttributes(attrs,R.styleable.MyCustomView, R.attr.xyz, 0);
a.recycle();
}
public void MyTestFun(int x,int y)
{
// Some Code to Execute
}}
attrs.xml
<resources>
<declare-styleable name="MyCustomView">
<attr name="abc" format="integer"/>
<attr name="pqr" format="integer" />
</declare-styleable>
<attr name="xyz" format="integer"/>
</resources>
Fehler:
05-11 07:29:27.345: E/AndroidRuntime(1919): FATAL EXCEPTION: main
05-11 07:29:27.345: E/AndroidRuntime(1919): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mycompoundbutton/com.example.mycompoundbutton.MainActivity}: android.content.res.Resources$NotFoundException: Resource ID #0x7f010000
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.app.ActivityThread.access$600(ActivityThread.java:141)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.os.Handler.dispatchMessage(Handler.java:99)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.os.Looper.loop(Looper.java:137)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.app.ActivityThread.main(ActivityThread.java:5103)
05-11 07:29:27.345: E/AndroidRuntime(1919): at java.lang.reflect.Method.invokeNative(Native Method)
05-11 07:29:27.345: E/AndroidRuntime(1919): at java.lang.reflect.Method.invoke(Method.java:525)
05-11 07:29:27.345: E/AndroidRuntime(1919): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
05-11 07:29:27.345: E/AndroidRuntime(1919): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
05-11 07:29:27.345: E/AndroidRuntime(1919): at dalvik.system.NativeStart.main(Native Method)
05-11 07:29:27.345: E/AndroidRuntime(1919): Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f010000
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.content.res.Resources.getValue(Resources.java:1118)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.content.res.Resources.loadXmlResourceParser(Resources.java:2304)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.content.res.Resources.getXml(Resources.java:983)
05-11 07:29:27.345: E/AndroidRuntime(1919): at com.example.mycompoundbutton.MainActivity.onCreate(MainActivity.java:24)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.app.Activity.performCreate(Activity.java:5133)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
05-11 07:29:27.345: E/AndroidRuntime(1919): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
05-11 07:29:27.345: E/AndroidRuntime(1919): ... 11 more
So, hier ist alles oben-Code und Fehlerbeschreibung. Ich möchte MyCompound
Klasse von MainActivity
anrufen. Ich weiß, wie es zu tun, um eine XML
Datei wie
<com.example.mycompoundbutton.MyCompound
... attributes here ...
>
</com.example.mycompoundbutton.MyCompound>
Diese obige Struktur wird mir helfen, ein statisches benutzerdefiniertes Layout zu entwerfen, aber es wird mir nicht ein dynamisches Layout zu entwerfen helfen. Wie kann ich die MyCompound
Klasse von MainActivity
mit einem AttributeSet
anrufen?
'com.example.mycompoundbutton.MainActivity.onCreate (MainActivity.java:24)' Was ist Zeile 24 von 'MainActivity.java'? –