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Commit 9a817361 authored by Romain Guy's avatar Romain Guy
Browse files

Add the ability to specify the onClick handler with XML. The new... 

    Add the ability to specify the onClick handler with XML. The new android:onClick attribute defines the name of the method in the Activity to invoke when the button is clicked. The method has to be public and get one View parameter.
parent 15d98b23

api/current.xml

+11 −0
Original line number Diff line number Diff line
@@ -5344,6 +5344,17 @@ 
 visibility="public"

>

</field>

<field name="onClick"

 type="int"

 transient="false"

 volatile="false"

 value="16843375"

 static="true"

 final="true"

 deprecated="not deprecated"

 visibility="public"

>

</field>

<field name="oneshot"

 type="int"

 transient="false"

core/java/android/view/View.java

+32 −0
Original line number Diff line number Diff line
@@ -62,6 +62,8 @@ import com.android.internal.view.menu.MenuBuilder; 
import java.util.ArrayList;

import java.util.Arrays;

import java.lang.ref.SoftReference;

import java.lang.reflect.Method;

import java.lang.reflect.InvocationTargetException;



/**

 * <p>
@@ -1874,6 +1876,36 @@ public class View implements Drawable.Callback, KeyEvent.Callback { 
                case R.styleable.View_minHeight:

                    mMinHeight = a.getDimensionPixelSize(attr, 0);

                    break;

                case R.styleable.View_onClick:

                    final String handlerName = a.getString(attr);

                    if (handlerName != null) {

                        setOnClickListener(new OnClickListener() {

                            private Method mHandler;



                            public void onClick(View v) {

                                if (mHandler == null) {

                                    try {

                                        mHandler = getContext().getClass().getMethod(handlerName,

                                                View.class);

                                    } catch (NoSuchMethodException e) {

                                        throw new IllegalStateException("Could not find a method " +

                                                handlerName + "(View) in the activity", e);

                                    }

                                }



                                try {

                                    mHandler.invoke(getContext(), View.this);

                                } catch (IllegalAccessException e) {

                                    throw new IllegalStateException("Could not execute non "

                                            + "public method of the activity", e);

                                } catch (InvocationTargetException e) {

                                    throw new IllegalStateException("Could not execute "

                                            + "method of the activity", e);

                                }

                            }

                        });

                    }

                    break;

            }

        }

core/res/res/values/attrs.xml

+7 −0
Original line number Diff line number Diff line
@@ -1165,6 +1165,13 @@ 
             enabled for events such as long presses. -->

        <attr name="hapticFeedbackEnabled" format="boolean" />



        <!-- Name of the method in this View's context to invoke when the view is

             clicked. This name must correspond to a public method that takes

             exactly one parameter of type View. For instance, if you specify

             <code>android:onClick="sayHello"</code>, you must declare a

             <code>public void sayHello(View v)</code> method of your context

             (typically, your Activity.)-->

        <attr name="onClick" format="string" />

    </declare-styleable>



    <!-- Attributes that can be used with a {@link android.view.ViewGroup} or any

core/res/res/values/public.xml

+1 −0
Original line number Diff line number Diff line
@@ -1096,6 +1096,7 @@ 
   <public type="attr" name="density" id="0x0101026c" />

   <public type="attr" name="searchSuggestThreshold" id="0x0101026d" />

   <public type="attr" name="includeInGlobalSearch" id="0x0101026e" />

   <public type="attr" name="onClick" id="0x0101026f" />



   <public type="anim" name="anticipate_interpolator" id="0x010a0007" />

   <public type="anim" name="overshoot_interpolator" id="0x010a0008" />