Android-自定义圆角Dialog遇到的问题

一、自定义Dialg样式
layout.xml

   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="278dp"
    android:layout_height="107dp"
    android:background="@android:color/transparent"
    >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:background="@drawable/shape_buzaiguanzhu_background">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="107dp"

            android:orientation="vertical">

            <TextView
                android:id="@+id/title"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_weight="3"
                android:gravity="center"
                android:text="确定不再关注此人？"
                android:textSize="12sp"
                android:textColor="#000"/>
            <View
                android:layout_width="match_parent"
                android:layout_height="2px"
                android:background="#cdced2"
                />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_weight="2"
                android:orientation="horizontal">
                <TextView
                    android:id="@+id/cancel"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:text="取消"
                    android:textColor="#0076ff"
                    android:gravity="center"/>
                <View
                    android:layout_width="2px"
                    android:layout_height="match_parent"
                    android:background="#cdced2"
                    />
                <TextView
                    android:id="@+id/sure"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:text="确定"
                    android:textColor="#0076ff"
                    android:gravity="center"/>
            </LinearLayout>
        </LinearLayout>
    </LinearLayout>

</LinearLayout> 

shape：

<shape android:shape="rectangle" xmlns:android="http://schemas.android.com/apk/res/android">

    <solid android:color="#E6FFFFFF" ></solid>
    <corners android:radius="8dp" />
</shape>

二、自定义Dialog：

  public class NoMoreFoucsDialog extends Dialog {

    private Context context;

    private ClickListenerInterface clickListenerInterface;

    public interface ClickListenerInterface {
        public void doConfirm();
        public void doCancel();
    }

    public NoMoreFoucsDialog(Context context) {
        super(context);
        this.context = context;

    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        init();
    }

    public void init() {
        LayoutInflater inflater = LayoutInflater.from(context);
        View view = inflater.inflate(R.layout.layout_buzaiguanzhu, null);
        setContentView(view);

        TextView tvTitle = (TextView) view.findViewById(R.id.title);
        TextView tvConfirm = (TextView) view.findViewById(R.id.sure);
        TextView tvCancel = (TextView) view.findViewById(R.id.cancel);


        tvConfirm.setOnClickListener(new clickListener());
        tvCancel.setOnClickListener(new clickListener());

        Window window = getWindow();

        WindowManager.LayoutParams params = window.getAttributes();

        params.gravity = Gravity.CENTER;

        window.setAttributes(params);


    }

    public void setClicklistener(ClickListenerInterface clickListenerInterface) {
         this.clickListenerInterface = clickListenerInterface;
     }

    private class clickListener implements View.OnClickListener {
       @Override
       public void onClick(View v) {
             // TODO Auto-generated method stub
             int id = v.getId();
             switch (id) {
             case R.id.sure:
                 clickListenerInterface.doConfirm();
                 break;
             case R.id.cancel:
                 clickListenerInterface.doCancel();
                 break;
             }
         }
     }

}  

三、遇到的问题：
这样的dialog没有圆角效果。

四、问题解决：
1、定义一个dialog的style：

       <style name="MyDialogStyle" parent="@android:style/Theme.Dialog" >
        <item name="android:windowFrame">@null</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:background">@android:color/transparent</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:backgroundDimEnabled">true</item>
        <item name="android:backgroundDimAmount">0.6</item>
    </style>

2、在构造方法上去调用父类的带有style的构造方法：

    public NoMoreFoucsDialog(Context context,int style) {
        super(context,style);
        this.context = context;
    }

五、最终效果：