按钮侦听器未在首次单击时注册在Android中

Question

由于我是Android的新手,我得到了按钮监听器的问题我使用OnClickListener for busttons但是它在第一次点击后没有执行我点击多次它表现不错但是如何使它成为可能首次点击它自己在这里是我的码:

public class DashbordActivity extends Activity implements OnClickListener{

ImageButton btnLogout, btnSearch, btnOENew, btnAENew,btnSync;
// Session Manager Class
SessionManager session = null;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.dashbord_activity);

    // Session Manager
    session = new SessionManager(getApplicationContext());

    /* Action Bar Color change on create*/
    ColorDrawable colorDrawable = new ColorDrawable(Color.parseColor("#FF7F24"));
    ActionBar actionBar = getActionBar();
    actionBar.setBackgroundDrawable(colorDrawable);

    /* get Resources from Xml  file */
    btnOENew = (ImageButton) findViewById(R.id.btnOENew);
    btnAENew = (ImageButton) findViewById(R.id.btnAENew);
    btnSearch = (ImageButton) findViewById(R.id.btnSearch);     
    btnLogout = (ImageButton) findViewById(R.id.btnLogout);
    btnSync = (ImageButton)findViewById(R.id.btnSync);

    addButtonListener();// on click any button
}
    // on click any button
private void addButtonListener() {
    // Find our button and hook-up the click routine
    btnOENew.setOnClickListener(this);
    btnSearch.setOnClickListener(this);     
    btnAENew.setOnClickListener(this);
    btnLogout.setOnClickListener(this);
    btnSync.setOnClickListener(this);
}

// on click any button
@Override
public void onClick(View v) {
    btnOENew.setOnClickListener(new OnClickListener() {         
        public void onClick(View v) {
            Intent intent = new Intent(getBaseContext(),           OceanSalesActivity.class);
            startActivity(intent);
        }
    });

    btnAENew.setOnClickListener(new OnClickListener() {         
        public void onClick(View v) {
            Intent intent = new Intent(getBaseContext(), AirSalesActivity.class);
            startActivity(intent);
        }
    });

    btnSearch.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(getBaseContext(), SearchActivity.class);
            startActivity(intent);
        }
    });


    btnLogout.setOnClickListener(new OnClickListener() {            
        public void onClick(View v) {               
            onLogout();
        }
    });

    btnSync.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent( getBaseContext() , SyncActivity.class);                                                
            startActivity(intent);
        }
    });
}

Answer 1

为什么你需要匿名的内部课程

 btnOENew.setOnClickListener(this);

你的班级实现了 OnClickListener

所有你需要的是切换案例 onClick

@Override
public void onClick(View v) {

    switch(v.getId())
     {
       case R.id.btnOENew :
           // button btnOENew clicked
       break;
       case R.id.btnAENew :
            // button btnAENew clicked  
       break;
       ... // similar for other buttons
      }
}