android studio按鈕監(jiān)聽的5種方法實(shí)例詳解
1.匿名內(nèi)部類

public class MainActivity extends AppCompatActivity implements View.OnClickListener {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);Button btn1 = findViewById(R.id.btn1);//匿名內(nèi)部類btn1.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Toast.makeText(getApplicationContext(), “你點(diǎn)擊了按鈕1”, Toast.LENGTH_LONG).show();}});}
2.內(nèi)部類
public class MainActivity extends AppCompatActivity {@Overrideprotected 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{@Overridepublic void onClick(View v){Toast.makeText(getApplicationContext(),“你點(diǎn)擊了按鈕2”,Toast.LENGTH_LONG).show();}}
3外部類**
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 activitybtn4.setOnClickListener(this);}public void onClick(View v) {Toast.makeText(getApplicationContext(), “你點(diǎn)擊了按鈕4”, Toast.LENGTH_SHORT).show();}}
5直接綁定到標(biāo)簽
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(), “你點(diǎn)擊了按鈕5”, Toast.LENGTH_SHORT).show();}}
總結(jié)
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