Define a dialog-style activity form yourself, and switch to the dialog method

First define a style

Add in Style

    <style name= "Mydialog" parent= "@android: Theme.dialog" >        <item name= "Android:windowframe" > @null < /item>        <item name= "Android:windownotitle" >true</item>        <item name= "Android: Windowisfloating ">true</item>        <item name=" Android:windowcontentoverlay "> @null </item>    </style>

Then add an activity to the androidmainfest and add a note when adding

Android:theme= "@style/mydialog"

Then you can directly define the activity's layout file.

Here is a way to switch dialog

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          //Initialize a dialog of your own definition
Dialog Dialog = new Mydialog (mydialogactivity.this,
R.style.mydialog);

Dialog.show ();

Define a dialog-style activity form yourself, and switch to the dialog method