public class CustomDialog {  
        private AlertDialog.Builder builder;  
        private Context context;  
      
        public CustomDialog(Context context) {  
            // TODO Auto-generated constructor stub  
            this.context = context;  
        }  
      
        public void createDialog(String buttontext, String title, String message,  
                final CallBack callBack) {  
            builder = new AlertDialog.Builder(context);  
            builder.setTitle(title);  
            builder.setMessage(message);  
            builder.setPositiveButton(buttontext, new OnClickListener() {  
                @Override  
                public void onClick(DialogInterface arg0, int arg1) {  
                    // TODO Auto-generated method stub  
                    callBack.isConfirm(true);  
                }  
            });  
            builder.create().show();  
        }  
      
        public interface CallBack {  
            public void isConfirm(boolean flag);  
        }  
      
        public void createToasts(String message,LayoutInflater layoutInflater) {  
            // Toast.makeText(context, message, Toast.LENGTH_LONG).show();  
             View view = layoutInflater.inflate(R.layout.toast, null);  
             TextView textView = (TextView)view.findViewById(R.id.text);  
             textView.setText(message);  
               
             Toast toast = new Toast(context);  
             toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);  
             toast.setDuration(Toast.LENGTH_LONG);  
             toast.setView(view);  
             toast.show();  
        }  
    }  

    public class MainActivity extends Activity {  
      
        private Button button;  
        private Button button2;  
      
        @Override  
        protected void onCreate(Bundle savedInstanceState) {  
            super.onCreate(savedInstanceState);  
            setContentView(R.layout.activity_main);  
            button = (Button) this.findViewById(R.id.button1);  
            button2 = (Button) this.findViewById(R.id.button2);  
            button.setOnClickListener(new View.OnClickListener() {  
                @Override  
                public void onClick(View arg0) {  
                    // TODO Auto-generated method stub  
                    CustomDialog dialog = new CustomDialog(MainActivity.this);  
                    dialog.createDialog("确定", "提示", "您确定要删除吗？", new CallBack() {  
                        @Override  
                        public void isConfirm(boolean flag) {  
                            // TODO Auto-generated method stub  
                            System.out.println("----->>" + flag);  
                            if (flag) {  
                                //dosomething.....判断执行业务逻辑  
                            }  
                        }  
                    });  
                }  
            });  
            button2.setOnClickListener(new View.OnClickListener() {  
                @Override  
                public void onClick(View arg0) {  
                    // TODO Auto-generated method stub  
                     CustomDialog dialog = new CustomDialog(MainActivity.this);  
                    // LayoutInflater layoutInflater = getLayoutInflater();  
                     dialog.createToasts("网络有有异常!!",getLayoutInflater());  
                       
                }  
            });  
        }  
      
        @Override  
        public boolean onCreateOptionsMenu(Menu menu) {  
            // Inflate the menu; this adds items to the action bar if it is present.  
            getMenuInflater().inflate(R.menu.main, menu);  
            return true;  
        }  
      
    }