Service中创建圆角Dialog-优快云博客

本文介绍了如何在Service中创建Dialog，并详细讲述了如何将布局转换为具有20px圆角的背景，包括在布局文件中添加自定义背景以及创建白色且带圆角的背景设置方法。

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Service中创建Dialog

    public void createWindow(){
        Dialog dialog = new Dialog(getApplicationContext());
        Window window = dialog.getWindow();
        //service中添加window使用该类型，
        //并需要声明权限：
        //<uses-permission android:name="android.permission.TYPE_APPLICATION_OVERLAY"/>
        //<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
        window.setType(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY);
        window.setGravity(Gravity.LEFT|Gravity.TOP);
        //设置Dialog背景
        window.setBackgroundDrawableResource(R.color.white);

        WindowManager.LayoutParams layoutParams = window.getAttributes();
        layoutParams.x = 0;
        layoutParams.y = 500;
        //layoutParams.width = 450;
        //layoutParams.height = 300;
        window.setAttributes(layoutParams);

        //去除title
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        window.setContentView(R.layout.activity_main);
        dialog.show();
    }

将布局变为圆角

1.在布局中添加自己的background

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:background="@drawable/layout_border"
    >

    <TextView
        android:text="这是一个TextView"
        android:layout_width="450px"
        android:layout_height="300px"/>


</LinearLayout>

2.创建background

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
   <solid android:color="@android:color/white" />
    <corners android:radius="20px" />

</shape>

设置Background 为白色，圆角为20px