android-button点击事件的4种方式

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1、Android按钮单击事件的四种常用写法总结控件响应事件的写法xml文件代码如下：(前三总)   四种方法分述如下：1.匿名内部类：publicclassTestButtonActivityextendsActivity{   Buttonbtn1,btn2;  Toasttst;   @Override  protectedvoidonCreate(BundlesavedInstanceState){    super.onCreate(savedInstanceState);

3、    setContentView(R.layout.activity_test_button);     btn1=(Button)findViewById(R.id.button1);    btn2=(Button)findViewById(R.id.button2);     btn1.setOnClickListener(newOnClickListener(){       @Override      publicvoidonClick(Viewv){        //TODOAuto-generat

4、edmethodstub        Toasttst=Toast.makeText(TestButtonActivity.this,"111111111",Toast.LENGTH_SHORT);        tst.show();       }    });     btn2.setOnClickListener(newOnClickListener(){       @Override      publicvoidonClick(Viewv){        //TODOAuto-generatedmet

5、hodstub        Toasttst=Toast.makeText(TestButtonActivity.this,"222222222",Toast.LENGTH_SHORT);        tst.show();      }    });  }}1.自定义单击事件监听类：publicclassTestButtonActivityextendsActivity{   Buttonbtn1,btn2;  Toasttst;   classMyClickListenerimplementsOnClickLi

6、stener{     @Override    publicvoidonClick(Viewv){      //TODOAuto-generatedmethodstub      switch(v.getId()){      caseR.id.button1:        tst=Toast.makeText(TestButtonActivity.this,"111111111",Toast.LENGTH_SHORT);        tst.show();        break;      caseR.i

7、d.button2:        tst=Toast.makeText(TestButtonActivity.this,"222222222",Toast.LENGTH_SHORT);        tst.show();        break;      default:        break;      }    }  }   @Override  protectedvoidonCreate(BundlesavedInstanceState){    super.onCreate(savedInstanc

8、eState);    setContentView(R.layout.activity_test_button);     btn1=(Button)findViewById(R.id.button1);    btn2=(Button)findViewById(R.id.button2);     btn1.setOnClic