自定義一個如下listview時

package com.example.test;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.text.Layout;
import android.util.AttributeSet;
import android.widget.ListView;

public class SpinListView extends ListView{

	public SpinListView(Context context) {
		super(context);
		// TODO Auto-generated constructor stub
	}


	
	@Override
	protected void onDraw(Canvas canvas) {
		// TODO Auto-generated method stub
		super.onDraw(canvas);
		Paint paint = new Paint();
		 final android.view.ViewGroup.LayoutParams layout = getLayoutParams();
		 
		final int left = getListPaddingLeft();
        final int top = getListPaddingTop();
		paint.setColor(android.graphics.Color.BLACK);
		canvas.drawLine(left + layout.width, top, left + layout.width + 4, top + 4, paint);
		canvas.drawLine(left + layout.width + 4, top + 4, left + layout.width, top + 8 , paint);
		
	}
}
 

出現如下錯誤:

D/dalvikvm( 9962): Debugger has detached; object registry had 1 entries

D/AndroidRuntime( 9972): Shutting down VM

W/dalvikvm( 9972): threadid=1: thread exiting with uncaught exception (group=0x41124930)

E/AndroidRuntime( 9972): FATAL EXCEPTION: main

E/AndroidRuntime( 9972): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.test/com.example.test.MainActivity}: android.view.InflateException: Binary XML file line #11: Error inflating class com.example.test.SpinListView

E/AndroidRuntime( 9972): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)

E/AndroidRuntime( 9972): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)

E/AndroidRuntime( 9972): 	at android.app.ActivityThread.access$600(ActivityThread.java:141)

E/AndroidRuntime( 9972): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)

E/AndroidRuntime( 9972): 	at android.os.Handler.dispatchMessage(Handler.java:99)

E/AndroidRuntime( 9972): 	at android.os.Looper.loop(Looper.java:137)

E/AndroidRuntime( 9972): 	at android.app.ActivityThread.main(ActivityThread.java:5041)

E/AndroidRuntime( 9972): 	at java.lang.reflect.Method.invokeNative(Native Method)

E/AndroidRuntime( 9972): 	at java.lang.reflect.Method.invoke(Method.java:511)

E/AndroidRuntime( 9972): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)

E/AndroidRuntime( 9972): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)

E/AndroidRuntime( 9972): 	at dalvik.system.NativeStart.main(Native Method)

E/AndroidRuntime( 9972): Caused by: android.view.InflateException: Binary XML file line #11: Error inflating class com.example.test.SpinListView

E/AndroidRuntime( 9972): 	at android.view.LayoutInflater.createView(LayoutInflater.java:596)

E/AndroidRuntime( 9972): 	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)

E/AndroidRuntime( 9972): 	at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)

E/AndroidRuntime( 9972): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:489)

E/AndroidRuntime( 9972): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:396)

E/AndroidRuntime( 9972): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:352)

E/AndroidRuntime( 9972): 	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:270)

E/AndroidRuntime( 9972): 	at android.app.Activity.setContentView(Activity.java:1881)

E/AndroidRuntime( 9972): 	at com.example.test.MainActivity.onCreate(MainActivity.java:12)

E/AndroidRuntime( 9972): 	at android.app.Activity.performCreate(Activity.java:5104)

E/AndroidRuntime( 9972): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)

E/AndroidRuntime( 9972): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)

E/AndroidRuntime( 9972): 	... 11 more

E/AndroidRuntime( 9972): Caused by: java.lang.NoSuchMethodException: <init> [class android.content.Context, interface android.util.AttributeSet]

E/AndroidRuntime( 9972): 	at java.lang.Class.getConstructorOrMethod(Class.java:460)

E/AndroidRuntime( 9972): 	at java.lang.Class.getConstructor(Class.java:431)

E/AndroidRuntime( 9972): 	at android.view.LayoutInflater.createView(LayoutInflater.java:561)

E/AndroidRuntime( 9972): 	... 22 more

W/ActivityManager(  359):   Force finishing activity com.example.test/.MainActivity

I/Process ( 9972): Sending signal. PID: 9972 SIG: 9

I/ActivityManager(  359): Process com.example.test (pid 9972) has died.

W/InputMethodManagerService(  359): Window already focused, ignoring focus gain of: 
 
[email protected] attribute=null, token = [email protected]

	public SpinListView(Context context, AttributeSet attrs) {
		super(context, attrs);
		// TODO Auto-generated constructor stub
	}