分享一个圆角自定义的漂亮AlertDialog

 

\res\drawable-hdpi\bg_title_custom_dialog.xml:

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android">    <item><shape>            <gradient android:angle="270" android:endColor="#e1e1e1" android:startColor="#e1e1e1" />            <corners android:topLeftRadius="15dp" android:topRightRadius="15dp" />    </shape></item></selector>

\res\drawable-hdpi\bg_middle_custom_dialog.xml:

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android">    <item><shape>            <gradient android:angle="270" android:endColor="#f5f5f5" android:startColor="#f5f5f5" />    </shape></item></selector>

\res\drawable-hdpi\bg_bottom_custom_dialog.xml:

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android">    <item><shape>            <gradient android:angle="270" android:endColor="#e1e1e1" android:startColor="#e1e1e1" />            <corners android:bottomLeftRadius="15dp" android:bottomRightRadius="15dp" />    </shape></item></selector>

\res\drawable-hdpi\bbuton_info_rounded.xml:

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android">    <item android:state_pressed="true"><shape>            <solid android:color="@color/bbutton_info_pressed" />            <stroke android:width="1dp" android:color="@color/bbutton_info_edge" />            <corners android:radius="@dimen/bbuton_rounded_corner_radius"/>        </shape></item>                <item android:state_enabled="false"><shape>        <solid android:color="@color/bbutton_info_disabled" />            <stroke android:width="1dp" android:color="@color/bbutton_info_disabled_edge" />            <corners android:radius="@dimen/bbuton_rounded_corner_radius"/>        </shape></item>                <item><shape>            <solid android:color="@color/bbutton_info" />            <stroke android:width="1dp" android:color="@color/bbutton_info_edge" />            <corners android:radius="@dimen/bbuton_rounded_corner_radius"/>        </shape></item></selector>

\res\drawable-hdpi\bbuton_danger_rounded.xml:

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android">    <item android:state_pressed="true"><shape>            <solid android:color="@color/bbutton_danger_pressed" />            <stroke android:width="1dp" android:color="@color/bbutton_danger_edge" />            <corners android:radius="@dimen/bbuton_rounded_corner_radius"/>        </shape></item>                <item android:state_enabled="false"><shape>        <solid android:color="@color/bbutton_danger_disabled" />            <stroke android:width="1dp" android:color="@color/bbutton_danger_disabled_edge" />            <corners android:radius="@dimen/bbuton_rounded_corner_radius"/>        </shape></item>            <item><shape>            <solid android:color="@color/bbutton_danger" />            <stroke android:width="1dp" android:color="@color/bbutton_danger_edge" />            <corners android:radius="@dimen/bbuton_rounded_corner_radius"/>        </shape></item>            </selector>

\res\layout\custom_dialog_layout.xml:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:minWidth="280dip"    android:orientation="vertical"    android:background="@null">    <LinearLayout        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:background="@drawable/bg_title_custom_dialog"        android:paddingTop="10dip"        android:paddingBottom="10dip"        android:orientation="horizontal" >        <ImageView             android:layout_width="32dp"            android:layout_height="32dp"            android:layout_gravity="center_vertical"            android:layout_marginLeft="10dip"            android:src="@drawable/ic_expand"            android:contentDescription="@string/line"/>        <TextView            android:id="@+id/title"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_gravity="center_vertical"            android:layout_marginLeft="8dip"            android:textSize="16sp"            />    </LinearLayout>    <LinearLayout        android:id="@+id/content"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:minHeight="100dip"        android:background="@drawable/bg_middle_custom_dialog"        android:orientation="vertical"         android:gravity="center">        <TextView            android:id="@+id/message"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_marginLeft="10dip"             android:textSize="16sp"            android:textColor="#FF000000"/>    </LinearLayout>    <LinearLayout        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:paddingTop="5dip"        android:paddingBottom="5dip"        android:paddingLeft="5dip"        android:paddingRight="5dip"        android:background="@drawable/bg_bottom_custom_dialog"        android:orientation="horizontal" >        <Button            android:id="@+id/positiveButton"            android:layout_width="0dip"            android:layout_height="wrap_content"            android:background="@drawable/bbuton_info_rounded"            android:textColor="@color/bg_white"            android:layout_weight="1"            android:singleLine="true" />        <Button            android:id="@+id/negativeButton"            android:layout_width="0dip"            android:layout_height="wrap_content"            android:background="@drawable/bbuton_danger_rounded"            android:layout_marginLeft="3dip"            android:textColor="@color/bg_white"            android:layout_weight="1"            android:singleLine="true" />    </LinearLayout></LinearLayout>

\res\layout\activity_main.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" >    <TextView        android:id="@+id/textView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/hello_world" />    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/textView1"        android:layout_below="@+id/textView1"        android:layout_marginLeft="22dp"        android:layout_marginTop="18dp"        android:text="Button" /></RelativeLayout>

CustomDialog.java:

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package com.example.test;

  

import android.app.Dialog;

import android.content.Context;

import android.content.DialogInterface;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup.LayoutParams;

import android.widget.Button;

import android.widget.LinearLayout;

import android.widget.TextView;

  

/**

 *

 * Create custom Dialog windows for your application

 * Custom dialogs rely on custom layouts wich allow you to

 * create and use your own look & feel.

 *

 * Under GPL v3 : http://www.gnu.org/licenses/gpl-3.0.html

 *

 * <a href="http://my.oschina.net/arthor" target="_blank" rel="nofollow">@author</a> antoine vianey

 *

 */

public class CustomDialog extends Dialog {

  

    public CustomDialog(Context context, int theme) {

        super(context, theme);

    }

  

    public CustomDialog(Context context) {

        super(context);

    }

  

    /**

     * Helper class for creating a custom dialog

     */

    public static class Builder {

  

        private Context context;

        private String title;

        private String message;

        private String positiveButtonText;

        private String negativeButtonText;

        private View contentView;

  

        private DialogInterface.OnClickListener positiveButtonClickListener, negativeButtonClickListener;

  

        public Builder(Context context) {

            this.context = context;

        }

  

        /**

         * Set the Dialog message from String

         * @param title

         * @return

         */

        public Builder setMessage(String message) {

            this.message = message;

            return this;

        }

  

        /**

         * Set the Dialog message from resource

         * @param title

         * @return

         */

        public Builder setMessage(int message) {

            this.message = (String) context.getText(message);

            return this;

        }

  

        /**

         * Set the Dialog title from resource

         * @param title

         * @return

         */

        public Builder setTitle(int title) {

            this.title = (String) context.getText(title);

            return this;

        }

  

        /**

         * Set the Dialog title from String

         * @param title

         * @return

         */

        public Builder setTitle(String title) {

            this.title = title;

            return this;

        }

  

        /**

         * Set a custom content view for the Dialog.

         * If a message is set, the contentView is not

         * added to the Dialog...

         * @param v

         * @return

         */

        public Builder setContentView(View v) {

            this.contentView = v;

            return this;

        }

  

        /**

         * Set the positive button resource and it's listener

         * @param positiveButtonText

         * @param listener

         * @return

         */

        public Builder setPositiveButton(int positiveButtonText, DialogInterface.OnClickListener listener) {

            this.positiveButtonText = (String) context.getText(positiveButtonText);

            this.positiveButtonClickListener = listener;

            return this;

        }

  

        /**

         * Set the positive button text and it's listener

         * @param positiveButtonText

         * @param listener

         * @return

         */

        public Builder setPositiveButton(String positiveButtonText, DialogInterface.OnClickListener listener) {

            this.positiveButtonText = positiveButtonText;

            this.positiveButtonClickListener = listener;

            return this;

        }

  

        /**

         * Set the negative button resource and it's listener

         * @param negativeButtonText

         * @param listener

         * @return

         */

        public Builder setNegativeButton(int negativeButtonText, DialogInterface.OnClickListener listener) {

            this.negativeButtonText = (String) context.getText(negativeButtonText);

            this.negativeButtonClickListener = listener;

            return this;

        }

  

        /**

         * Set the negative button text and it's listener

         * @param negativeButtonText

         * @param listener

         * @return

         */

        public Builder setNegativeButton(String negativeButtonText, DialogInterface.OnClickListener listener) {

            this.negativeButtonText = negativeButtonText;

            this.negativeButtonClickListener = listener;

            return this;

        }

  

        /**

         * Create the custom dialog

         */

        public CustomDialog create() {

            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

            // instantiate the dialog with the custom Theme

            final CustomDialog dialog = new CustomDialog(context, R.style.Dialog);

            dialog.setCanceledOnTouchOutside(false);

            View layout = inflater.inflate(R.layout.custom_dialog_layout, null);

            dialog.addContentView(layout, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));

            // set the dialog title

            ((TextView) layout.findViewById(R.id.title)).setText(title);

            // set the confirm button

            if (positiveButtonText != null) {

                ((Button) layout.findViewById(R.id.positiveButton)).setText(positiveButtonText);

                if (positiveButtonClickListener != null) {

                    ((Button) layout.findViewById(R.id.positiveButton)).setOnClickListener(new View.OnClickListener() {

                                public void onClick(View v) {

                                    positiveButtonClickListener.onClick(Dialog, DialogInterface.BUTTON_POSITIVE);

                                }

                            });

                }

            } else {

                // if no confirm button just set the visibility to GONE

                layout.findViewById(R.id.positiveButton).setVisibility(View.GONE);

            }

             

            // set the cancel button

            if (negativeButtonText != null) {

                ((Button) layout.findViewById(R.id.negativeButton)).setText(negativeButtonText);

                if (negativeButtonClickListener != null) {

                    ((Button) layout.findViewById(R.id.negativeButton)).setOnClickListener(new View.OnClickListener() {

                                public void onClick(View v) {

                                    negativeButtonClickListener.onClick(Dialog, DialogInterface.BUTTON_NEGATIVE);

                                }

                            });

                }

            } else {

                // if no confirm button just set the visibility to GONE

                layout.findViewById(R.id.negativeButton).setVisibility(View.GONE);

            }

             

            // set the content message

            if (message != null) {

                ((TextView) layout.findViewById(R.id.message)).setText(message);

            } else if (contentView != null) {

                // if no message set

                // add the contentView to the dialog body

                ((LinearLayout) layout.findViewById(R.id.content)).removeAllViews();

                ((LinearLayout) layout.findViewById(R.id.content)).addView(contentView, new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

            }

            dialog.setContentView(layout);

            return dialog;

        }

  

    }

  

}

　　MainActivity.java:

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package com.example.test;

 

import android.os.Bundle;

import android.app.Activity;

import android.app.Dialog;

import android.content.DialogInterface;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

 

public class MainActivity extends Activity {

    private CustomDialog dialog;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        findViewById(R.id.button1).setOnClickListener(new OnClickListener(){

 

            @Override

            public void onClick(View arg0) {

                // TODO Auto-generated method stub

                CustomDialog.Builder customBuilder = new

                        CustomDialog.Builder(MainActivity.this);

                    customBuilder.setTitle("标题")

                        .setMessage("提示内容")

                        .setNegativeButton("取消", new DialogInterface.OnClickListener() {

                            public void onClick(DialogInterface dialog, int which) {

                                 

                            }

                        })

                        .setPositiveButton("确定",

                                new DialogInterface.OnClickListener() {

                            public void onClick(DialogInterface dialog, int which) {

                                dialog.dismiss();

                            }

                        });

                    dialog = customBuilder.create();

                    dialog.show();

            }

             

        });

    }

 

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.main, menu);

        return true;

    }

     

}