如何在android中创建叠加教程消息？

Question

  

现在，大多数新应用程序第一次带有帮助信息

Answer 1

使用此代码段

    public void helpOverlay(){

    final Dialog dialog = new Dialog(this);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
    dialog.setContentView(R.layout.coach_mark);
    dialog.setCanceledOnTouchOutside(true);
    View masterView = dialog.findViewById(R.id.coach_mark_master_view);
    masterView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            dialog.dismiss();
        }
    });
    dialog.show();
}

或here is a github project