onclick()在xml的加入教學

這個程式是onclick的筆記
android:onClick="onClick"

public void onClick(View view){
     Toast.makeText(AndroidOnClickActivity.this,
       "Button Clicked", Toast.LENGTH_LONG).show();
    }

xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     > <TextView      android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="@string/hello"     /> <Button      android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="Click Me"     android:onClick="onClick"     /> </LinearLayout>

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package com.AndroidOnClick;   import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Toast;   public class AndroidOnClickActivity extends Activity {     /** Called when the activity is first created. */     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);     }           public void onClick(View view){      Toast.makeText(AndroidOnClickActivity.this,        "Button Clicked", Toast.LENGTH_LONG).show();     } }