Android Dialog自定义

2011-9-17 16:56:03 上传

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import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MyDialogActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button button = (Button) findViewById(R.id.button1);
        button.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
               
                //初始化一个自定义的Dialog
                Dialog dialog = new MyDialog(MyDialogActivity.this,
                        R.style.MyDialog);

                dialog.show();
            }
        });

    }
}

主布局文件main.xml

 

<?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">
    <Button
        android:text="显示自定义Dialog"
        android:id="@+id/button1"
        android:layout_height="wrap_content"
        android:layout_width="fill_parent"/>
</LinearLayout>

新建一个自定义的Dialog类，取名MyDialog，继承自Dialog

 

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;

public class MyDialog extends Dialog {

    Context context;
    public MyDialog(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
        this.context = context;
    }
    public MyDialog(Context context, int theme){
        super(context, theme);
        this.context = context;
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.dialog);
    }

}

相应的布局文件dialog.xml

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:gravity="center_vertical|center_horizontal"
    android:background="@drawable/dialog_bg">
    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:paddingLeft="30dip"
        android:paddingTop="10dip">
        <ImageView
            android:id="@+id/dialog_title_image"
            android:layout_alignParentLeft="true"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/dialog_title_image"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dip"
            android:layout_centerInParent="true"
            android:text="Title"
            android:layout_toRightOf="@id/dialog_title_image"
            android:textColor="#000000"
            android:textSize="30sp"/>
        
    </RelativeLayout>
    <TextView
            android:layout_width="fill_parent"
            android:layout_height="1dip"
            android:background="@drawable/lins"
            android:layout_marginTop="5dip"/>
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="This is a custom dialog"
        android:textColor="#000000"
        android:layout_marginTop="10dip"
        android:layout_marginLeft="30dip"/>
    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:paddingTop="10dip"
        android:gravity="bottom|center_horizontal"
        android:paddingBottom="10dip">
        <Button
            android:id="@+id/dialog_button_cancel"
            android:layout_alignParentLeft="true"
            android:layout_width="100dip"
            android:layout_height="wrap_content"
            android:text="确定"/>
        <Button
            android:id="@+id/dialog_button_ok"
            android:layout_width="100dip"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@id/dialog_button_cancel"
            android:layout_marginLeft="35dip"
            android:text="取消"/>
    </RelativeLayout>
</LinearLayout>

最主要的，是自定义的Style，我们自定义一个式样，用来改变默认的Dialog样式

在values文件夹下新建一个styles.xml文件，如下。。。

 

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="MyDialog" parent="@android:Theme.Dialog">
        <item name="android:windowFrame">@null</item>
        <item name="android:windowNoTitle">true</item> 
        <item name="android:windowBackground">@drawable/dialog_bg</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowContentOverlay">@null</item>
    </style>
</resources>

这样应该就OK了

<IGNORE_JS_OP>

2011-9-17 16:59:23 上传

下载附件 (28.39 KB)

 

<IGNORE_JS_OP>

2011-9-17 16:59:29 上传

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另外一种方便的方法是：

 

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MyDialogActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button button = (Button) findViewById(R.id.button1);
        button.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

//                Dialog dialog = new MyDialog(MyDialogActivity.this,
//                        R.style.MyDialog);

                //此处直接new一个Dialog对象出来，在实例化的时候传入主题

                Dialog dialog = new Dialog(MyDialogActivity.this, R.style.MyDialog);

                //设置它的ContentView

                dialog.setContentView(R.layout.dialog);

                dialog.show();
            }
        });

    }
}