仿ios自定义Dialog

1.自定义的CustomDialog.java

package com.example.iosalertview;

import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.Gravity;
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;

public class CustomDialog extends Dialog {

    public CustomDialog(Context context) {
        super(context);
    }

    public CustomDialog(Context context, int theme) {
        super(context, theme);
    }

    public static class Builder {
        private Context context; // 上下文对象
        private String title; // 对话框标题
        private String message; // 对话框内容
        private String confirm_btnText; // 按钮名称“确定”
        private String cancel_btnText; // 按钮名称“取消”
        private String neutral_btnText; // 按钮名称“隐藏”
        private View contentView; // 对话框中间加载的其他布局界面
        /* 按钮坚挺事件 */
        private DialogInterface.OnClickListener confirm_btnClickListener;
        private DialogInterface.OnClickListener cancel_btnClickListener;
        private DialogInterface.OnClickListener neutral_btnClickListener;

        public Builder(Context context) {
            this.context = context;
        }

        /* 设置对话框信息 */
        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;
        }

        /**
         * 设置对话框界面
         * 
         * @param v
         *            View
         * @return
         */
        public Builder setContentView(View v) {
            this.contentView = v;
            return this;
        }

        /**
         * Set the positive button resource and it's listener
         * 
         * @param confirm_btnText
         * @return
         */
        public Builder setPositiveButton(int confirm_btnText,
                DialogInterface.OnClickListener listener) {
            this.confirm_btnText = (String) context.getText(confirm_btnText);
            this.confirm_btnClickListener = listener;
            return this;
        }

        /**
         * Set the positive button and it's listener
         * 
         * @param confirm_btnText
         * @return
         */
        public Builder setPositiveButton(String confirm_btnText,
                DialogInterface.OnClickListener listener) {
            this.confirm_btnText = confirm_btnText;
            this.confirm_btnClickListener = listener;
            return this;
        }

        /**
         * Set the negative button resource and it's listener
         * 
         * @param confirm_btnText
         * @return
         */
        public Builder setNegativeButton(int cancel_btnText,
                DialogInterface.OnClickListener listener) {
            this.cancel_btnText = (String) context.getText(cancel_btnText);
            this.cancel_btnClickListener = listener;
            return this;
        }

        /**
         * Set the negative button and it's listener
         * 
         * @param confirm_btnText
         * @return
         */
        public Builder setNegativeButton(String cancel_btnText,
                DialogInterface.OnClickListener listener) {
            this.cancel_btnText = cancel_btnText;
            this.cancel_btnClickListener = listener;
            return this;
        }

        /**
         * Set the netural button resource and it's listener
         * 
         * @param confirm_btnText
         * @return
         */
        public Builder setNeutralButton(int neutral_btnText,
                DialogInterface.OnClickListener listener) {
            this.neutral_btnText = (String) context.getText(neutral_btnText);
            this.neutral_btnClickListener = listener;
            return this;
        }

        /**
         * Set the netural button and it's listener
         * 
         * @param confirm_btnText
         * @return
         */
        public Builder setNeutralButton(String neutral_btnText,
                DialogInterface.OnClickListener listener) {
            this.neutral_btnText = neutral_btnText;
            this.neutral_btnClickListener = listener;
            return this;
        }

        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.mystyle);
            View layout = inflater.inflate(R.layout.customdialog, null);
            dialog.addContentView(layout, new LayoutParams(
                    LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
            // set the dialog title
            ((TextView) layout.findViewById(R.id.title)).setText(title);
            ((TextView) layout.findViewById(R.id.title)).getPaint()
                    .setFakeBoldText(true);

            if (title == null || title.trim().length() == 0) {
                ((TextView) layout.findViewById(R.id.message))
                        .setGravity(Gravity.CENTER);
            }

            if (neutral_btnText != null && confirm_btnText != null
                    && cancel_btnText != null) {
                ((Button) layout.findViewById(R.id.confirm_btn))
                        .setText(confirm_btnText);
                if (neutral_btnClickListener != null) {
                    ((Button) layout.findViewById(R.id.neutral_btn))
                            .setOnClickListener(new View.OnClickListener() {
                                public void onClick(View v) {
                                    neutral_btnClickListener.onClick(dialog,
                                            DialogInterface.BUTTON_NEUTRAL);
                                }
                            });
                } else {
                    ((Button) layout.findViewById(R.id.neutral_btn))
                            .setOnClickListener(new View.OnClickListener() {

                                @Override
                                public void onClick(View v) {
                                    dialog.dismiss();
                                }
                            });
                }
            } else {
                // if no confirm button or cancle button or neutral just set the
                // visibility to GONE
                layout.findViewById(R.id.neutral_btn).setVisibility(View.GONE);
                layout.findViewById(R.id.single_line).setVisibility(View.GONE);
            }
            // set the confirm button
            if (confirm_btnText != null) {
                ((Button) layout.findViewById(R.id.confirm_btn))
                        .setText(confirm_btnText);
                if (confirm_btnClickListener != null) {
                    ((Button) layout.findViewById(R.id.confirm_btn))
                            .setOnClickListener(new View.OnClickListener() {
                                public void onClick(View v) {
                                    confirm_btnClickListener.onClick(dialog,
                                            DialogInterface.BUTTON_POSITIVE);
                                }
                            });
                } else {
                    ((Button) layout.findViewById(R.id.confirm_btn))
                            .setOnClickListener(new View.OnClickListener() {

                                @Override
                                public void onClick(View v) {
                                    dialog.dismiss();
                                }
                            });
                }
            } else {
                // if no confirm button just set the visibility to GONE
                layout.findViewById(R.id.confirm_btn).setVisibility(View.GONE);
                layout.findViewById(R.id.second_line).setVisibility(View.GONE);
                layout.findViewById(R.id.cancel_btn).setBackgroundResource(
                        R.drawable.single_btn_select);
            }
            // set the cancel button
            if (cancel_btnText != null) {
                ((Button) layout.findViewById(R.id.cancel_btn))
                        .setText(cancel_btnText);
                if (cancel_btnClickListener != null) {
                    ((Button) layout.findViewById(R.id.cancel_btn))
                            .setOnClickListener(new View.OnClickListener() {
                                public void onClick(View v) {
                                    cancel_btnClickListener.onClick(dialog,
                                            DialogInterface.BUTTON_NEGATIVE);
                                }
                            });
                } else {
                    ((Button) layout.findViewById(R.id.cancel_btn))
                            .setOnClickListener(new View.OnClickListener() {

                                @Override
                                public void onClick(View v) {
                                    dialog.dismiss();
                                }
                            });
                }
            } else {
                // if no cancel button just set the visibility to GONE
                layout.findViewById(R.id.cancel_btn).setVisibility(View.GONE);
                layout.findViewById(R.id.second_line).setVisibility(View.GONE);
                layout.findViewById(R.id.confirm_btn).setBackgroundResource(
                        R.drawable.single_btn_select);
            }
            // 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.message))
                        .removeAllViews();
                ((LinearLayout) layout.findViewById(R.id.message)).addView(
                        contentView, new LayoutParams(
                                LayoutParams.WRAP_CONTENT,
                                LayoutParams.WRAP_CONTENT));
            }
            dialog.setContentView(layout);
            return dialog;
        }

    }
}

2.CustomDialog的样式：

    <style name="mystyle" parent="@android:style/Theme.Dialog">
        <item name="android:windowFrame">@null</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowIsTranslucent">false</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowBackground">@drawable/bg</item>
        <item name="android:backgroundDimEnabled">true</item>
    </style>

3.<item name="android:windowBackground">@drawable/bg</item>  -> bg.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >

    <gradient
        android:angle="90"
        android:endColor="#ffffff"
        android:startColor="#ffffff" />

    <solid android:color="#ffffff" />

    <corners
        android:bottomLeftRadius="15px"
        android:bottomRightRadius="15px"
        android:topLeftRadius="15px"
        android:topRightRadius="15px" />

</shape>

4.在需要的地方调用即可：

    private void backDialog() {
        
        
        CustomDialog.Builder ibuilder = new CustomDialog.Builder(CommentDialogActivity.this);
        ibuilder.setTitle("提示");
        ibuilder.setMessage("是否取消评论?");
        ibuilder.setPositiveButton("确定", new DialogInterface.OnClickListener() {

            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                finish();
                overridePendingTransition(0, R.anim.roll_down);
            }
        });
        ibuilder.setNegativeButton("取消", new DialogInterface.OnClickListener() {

            public void onClick(DialogInterface dialog, int which) {
                dialog.cancel();
            }
        });
        ibuilder.create().show();
    }

效果如图：

问题：

在使用过程中，当Activity设置为取消标题栏时，会出现CustomDialog变形的情况，如图：

真的很莫名其妙，后面逐一排除比对才找出该原因所在，具体原理不知，恳请知道的大牛评论告知，谢谢。

出现如上问题，是因为：

如下设置取消标题栏：

        <activity
            android:name=".CommentDialogActivity"
            android:label="@string/title_activity_comment"
            android:screenOrientation="portrait"
            android:theme="@android:style/Theme.NoTitleBar"
            android:windowSoftInputMode="adjustUnspecified|adjustResize" >
        </activity>

而解决该问题，需要使用另一种方式来设置取消标题栏：

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);//去掉标题栏
        setContentView(R.layout.dialog_sendcomments);
}

小伙伴们有兴趣可以试一下。

再个，附上例子源码：链接：http://pan.baidu.com/s/1kTzh5Tt 密码：4437