Dialog_ _dialog系统样式讲解 及 透明背景

AlertDialog.Builder builder = new AlertDialog.Builder(DialogActivity.this,AlertDialog.THEME_TRADITIONAL);//传统主题

AlertDialog.Builder builder = new
AlertDialog.Builder(DialogActivity.this,AlertDialog.THEME_HOLO_DARK);//使用深色背景主题

AlertDialog.Builder builder = new
AlertDialog.Builder(DialogActivity.this,AlertDialog.THEME_HOLO_LIGHT);//使用浅色背景 主题

AlertDialog.Builder builder = new
AlertDialog.Builder(DialogActivity.this,AlertDialog.THEME_DEVICE_DEFAULT_DARK);//使用默认设备深色主题

AlertDialog.Builder builder = new
AlertDialog.Builder(DialogActivity.this,AlertDialog.THEME_DEVICE_DEFAULT_LIGHT);//使用默认设备 浅色主题

//自定义布局

View layout =
getActivity().getLayoutInflater().inflate(R.layout.mydialog,null);

AlertDialog.Builder dialog =
new AlertDialog.Builder(DialogActivity.this,AlertDialog.THEME_DEVICE_DEFAULT_DARK);

final AlertDialog dialog = builder.create();

dialog.setView(layout);

//透明

Window window = dialog.getWindow();

WindowManager.LayoutParams lp =
window.getAttributes();

lp.alpha = 0.9f;

window.setAttributes(lp);

。。。

dialog.show();