按钮点击事件和在活动中使用Toast

  protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
       // requestWindowFeature(Window.FEATURE_NO_TITLE);
       setContentView(R.layout.activity_main);
        Button button1 = (Button)findViewById(R.id.button_1);
        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                    Toast.makeText(MainActivity.this,"点击按钮1",Toast.LENGTH_SHORT).show();
                }

        });
    }

1、我使用的是Android Studio来做这个项目的，首先打开Studio,点击File->new->new Project创建项目。

2、如图

3、打开界面你会看到MainActivity.java自己写的代码都在这里，activity_main.xml是用来写布局的。好！那我们手动创建一个按钮点击事件和Toast活动吧~~

    

                                                                   

                                                                        

                                                                                                                                                                                                                                                                     

 打印出来这个样，就说明你成功了！