[移动开发]通用Dialog

记录一个Dialog的创建，方便获取

创建

	//创建
    Dialog dialog = new Dialog(this, R.style.Translucent_NoTitle);
    //设置自定义布局
    View rootView = LayoutInflater.from(this).inflate(R.layout.activity_login, null, false);
    dialog.setContentView(rootView);
    //点击外部消失
	dialog.setCanceledOnTouchOutside(true);
    // 设置宽高及位置
    Window window = dialog.getWindow();
    WindowManager.LayoutParams wlp = window.getAttributes();
    wlp.gravity = Gravity.CENTER;
    float density = getResources().getDisplayMetrics().density;
    int width = (int) (150*density);
    int height = (int) (100*density);
    wlp.width = width;
    wlp.height = height;
    window.setAttributes(wlp);
	//弹出
    dialog.show();

样式

    <style name="Translucent_NoTitle" parent="android:style/Theme.Dialog">
        <!--去除标题-->
        <item name="android:windowNoTitle">true</item>
        <!--设置dialog的背景,它会被自定义的布局背景覆盖-->
        <item name="android:background">@android:color/transparent</item>
        <!--window的背景，设置之后可去除dialog的黑边-->
        <item name="android:windowBackground">@android:color/transparent</item>
        <!--设置之后可去除dialog的灰色半透明背景！！！！！-->
        <item name="android:backgroundDimAmount">0</item>
    </style>