java - Android:从其他类调用 main 中按钮的 OnClick

Question

假设我的主屏幕有很多按钮。

我想创建一个类，其中所有按钮监听器都在其中，并在每次按下按钮时从我的主方法中调用 onClick。

public class Buttons extends Activity implements OnClickListener {

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

}

public void onClick(View v) {

   Button btn1 = (Button) findViewById(R.id.button1);
   Button btn2 = (Button) findViewById(R.id.button3);


    int viewId = v.getId() ;

    if(viewId == R.id.button1){
           Intent ScrollViewTest = new Intent(this, ScrollViewTest.class);
           startActivity(ScrollViewTest);}
      if(viewId == R.id.button2){
           Intent ScrollViewTest = new Intent(this, CameraTest.class);
           startActivity(CameraTest);}      
    }
    }
}

有没有办法调用 onClick 方法，例如:

Buttons allButtons = new Buttons();
allButtons.onClick(btn1);

还是我的逻辑错误？

................................................

已经检查

calling a method from an onClick listener

How to call onClick(View v) method explicitly in an Android? Is it possible?

Android onClick method

Is there a method to set methods for multiple objects in one go?

Answer 1

public class Buttons extends Activity {

protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);

   Button btn1 = (Button) findViewById(R.id.button1);
   Button btn2 = (Button) findViewById(R.id.button3);  // did you mean R.id.button2?

   // Create the onClickListener for btn1
   btn1.setOnClickListener(new View.OnClickListener() {

       public void onClick(View v) {
           Intent ScrollViewTest = new Intent(this, ScrollViewTest.class);
           startActivity(ScrollViewTest);
       }
   });

   // Create the onClickListener for btn2
   btn2.setOnClickListener(new View.OnClickListener() {

       public void onClick(View v) {
           Intent ScrollViewTest = new Intent(this, CameraTest.class);
           startActivity(CameraTest);
       }
   });
}