这篇写的代码很简洁，易懂，转载以作学习

转载自http://www.androidpeople.com/android-custom-dialog-example/

源码下载：download the full source code from here

Files Used :-

CustomDialogExample.java ( extends Activity – Main Activity Class )CustomizeDialog.java ( extends Dialog – dialog box actions )main.xml ( custom dialog design in xml file )

The output looks similar to

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/LinearLayout01"
android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"
android:background="@drawable/bg_android" android:orientation="vertical"
android:gravity="center" android:layout_width="200dip">
<TextView android:id="@+id/TextView01" android:layout_height="wrap_content"
android:textColor="#fff" android:textStyle="bold"
android:layout_width="wrap_content" android:text=" AndroidPeople.com "></TextView>
<TextView android:id="@+id/TextView02" android:layout_height="wrap_content"
android:textColor="#fff" android:layout_width="wrap_content"
android:layout_margin="7dip" android:text="Custom Dialog Example By AndroidPeople.com"
android:gravity="center"></TextView>
<Button android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="OK" android:id="@+id/OkButton"></Button>
</LinearLayout>
 

CustomDialogExample.java
This is Main Activity Class, used to display a custom dialog.

package org.androidpeople.dialog;

import android.app.Activity;
import android.os.Bundle;

public class CustomDialogExample extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/** Display Custom Dialog */
CustomizeDialog customizeDialog = new CustomizeDialog(this);
customizeDialog.show();
}
}
 

CustomizeDialog
This class should be extends with Dialog. Dialog views action will be done here.

package org.androidpeople.dialog;

import android.app.Dialog;
import android.content.Context;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;

/** Class Must extends with Dialog */
/** Implement onClickListener to dismiss dialog when OK Button is pressed */
public class CustomizeDialog extends Dialog implements OnClickListener {
Button okButton;

public CustomizeDialog(Context context) {
super(context);
/** 'Window.FEATURE_NO_TITLE' - Used to hide the title */
requestWindowFeature(Window.FEATURE_NO_TITLE);
/** Design the dialog in main.xml file */
setContentView(R.layout.main);
okButton = (Button) findViewById(R.id.OkButton);
okButton.setOnClickListener(this);
}

@Override
public void onClick(View v) {
/** When OK Button is clicked, dismiss the dialog */
if (v == okButton)
dismiss();
}

}
 

You can download the full source code from here