android studio按钮监听的5种方法实例详解 |
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1.匿名内部类 2.内部类 public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button btn2 = findViewById(R.id.btn2); Btn2CLickListener btn2CLickListener = new Btn2CLickListener(); btn2.setOnClickListener(btn2CLickListener); } class Btn2CLickListener implements View.OnClickListener{ @Override public void onClick(View v){ Toast.makeText(getApplicationContext(),“你点击了按钮2”,Toast.LENGTH_LONG).show(); } }3外部类** MainActivity.java: public class MainActivity extends AppCompatActivity{ protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } Button btn3 = findViewById(R.id.btn3); Btn3ClickListener btn3CLickListener = new Btn3ClickListener(getApplicationContext()); btn3.setOnClickListener(btn3CLickListener); } Btn3ClickListener.java:4自身activity public class MainActivity extends AppCompatActivity implements View.OnClickListener { protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button btn4 = findViewById(R.id.btn4);//main activity btn4.setOnClickListener(this); } public void onClick(View v) { Toast.makeText(getApplicationContext(), “你点击了按钮4”, Toast.LENGTH_SHORT).show(); } }5直接绑定到标签 activity_main.xml: 添加 android:onClick=“myClick”。如下所示: MainActivity.java: public class MainActivity extends AppCompatActivity implements View.OnClickListener { public void myClick(View view) { Toast.makeText(getApplicationContext(), “你点击了按钮5”, Toast.LENGTH_SHORT).show(); } }总结 到此这篇关于android studio按钮监听的5种方法实例详解的文章就介绍到这了,更多相关android studio按钮监听内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家! 您可能感兴趣的文章:Android studio button 按钮 四种绑定事件的方法【实例代码】Android Studio中Run按钮是灰色的快速解决方法 |
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