Discussion :

[frAydjwe]

Bonjour,

Je souhaite surcharger la classe TextView. Pour cela j'ai créé une classe EditDateView :

Code :

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package com.googlecode.android.widgets.DateSlider;
 
import android.content.Context;
 
import android.widget.TextView;
 
public class EditDateView extends TextView {
 
 
	public EditDateView(Context context) {
		super(context);
		// TODO Auto-generated constructor stub
	}
 
	public void changerTexte(){
 
		this.setText("ca a change de texte");
	}
 
 
 
}

Pour tester cette classe j'ai une activité de test :

Code :

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/*
 * Copyright (C) 2011 Daniel Berndt - Codeus Ltd  -  DateSlider
 *
 * This is a small demo application which demonstrates the use of the
 * dateSelector
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
package com.googlecode.android.widgets.DateSlider;
 
import java.util.Calendar;
 
import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
 
 
import com.googlecode.android.widgets.DateSlider.labeler.TimeLabeler;
 
/**
 * Small Demo activity which demonstrates the use of the DateSlideSelector
 *
 * @author Daniel Berndt - Codeus Ltd
 *
 */
public class Demo extends Activity {
 
 
    private EditDateView edv;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        // load and initialise the Activity
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
 
 
        edv = (EditDateView) this.findViewById(R.id.edv);
        // set up a listener for when the button is pressed
        edv.setOnClickListener(new OnClickListener() {
            public void onClick(View arg0) {
                // call the internal showDialog method using the predefined ID
                edv.changerTexte();
            }
        });
}

et mon layout " main " :

Code :

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<?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"
    >
 
<com.googlecode.android.widgets.DateSlider.EditDateView android:layout_height="wrap_content" android:layout_width="fill_parent" android:text="cestcluila" android:id="@+id/edv" />
 
</LinearLayout>

Maintenant voici mon erreur logcat :

Code :

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09-05 09:48:56.708: ERROR/AndroidRuntime(920): Uncaught handler: thread main exiting due to uncaught exception
09-05 09:48:56.977: ERROR/AndroidRuntime(920): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.googlecode.android.widgets.DateSlider/com.googlecode.android.widgets.DateSlider.Demo}: java.lang.ClassNotFoundException: com.googlecode.android.widgets.DateSlider.Demo in loader dalvik.system.PathClassLoader@43735ce8
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2194)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2284)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at android.app.ActivityThread.access$1800(ActivityThread.java:112)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at android.os.Handler.dispatchMessage(Handler.java:99)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at android.os.Looper.loop(Looper.java:123)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at android.app.ActivityThread.main(ActivityThread.java:3948)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at java.lang.reflect.Method.invokeNative(Native Method)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at java.lang.reflect.Method.invoke(Method.java:521)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at dalvik.system.NativeStart.main(Native Method)
09-05 09:48:56.977: ERROR/AndroidRuntime(920): Caused by: java.lang.ClassNotFoundException: com.googlecode.android.widgets.DateSlider.Demo in loader dalvik.system.PathClassLoader@43735ce8
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at android.app.Instrumentation.newActivity(Instrumentation.java:1097)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2186)
09-05 09:48:56.977: ERROR/AndroidRuntime(920):     ... 11 more

Mon paquetage où j'ai ma classe s'apelle bien com.googlecode.android.widgets.DateSlider.

Voilà, avez-vous des explications à mon problème ? Je vous remercie