java - 多路开关中开关盒的解决方案

Question

在此代码中

CompoundButton.OnCheckedChangeListener multiListener = new CompoundButton.OnCheckedChangeListener() {

            public void onCheckedChanged(CompoundButton v, boolean isChecked) {
                switch (v.getId()){
                    case R.id.msg:
                        startActivity(new Intent(Mainfunction.this, Get_messages.class));
                        break;
                    case R.id.cnt:
                        Toast.makeText(Mainfunction.this, "Contact In Procces", Toast.LENGTH_SHORT).show();
                        break;
                    case R.id.call:
                        startActivity(new Intent(Mainfunction.this, Get_callLog.class));
                        break;
                    case R.id.loc:
                        Toast.makeText(Mainfunction.this, "Location In Procces", Toast.LENGTH_SHORT).show();
                        break;
                    case R.id.ring:
                        Toast.makeText(Mainfunction.this, "Ringing In Proccess", Toast.LENGTH_SHORT).show();
                        break;
                }
            }
        };

        //on each switch
        ((Switch) findViewById(R.id.msg)).setOnCheckedChangeListener(multiListener);
        ((Switch) findViewById(R.id.cnt)).setOnCheckedChangeListener(multiListener);
        ((Switch) findViewById(R.id.call)).setOnCheckedChangeListener(multiListener);
        ((Switch) findViewById(R.id.loc)).setOnCheckedChangeListener(multiListener);
        ((Switch) findViewById(R.id.ring)).setOnCheckedChangeListener(multiListener);

在开关情况下，我的 Intent Activity Get_messages 和 Get_callLog 将在我打开或关闭时调用，但我只想在打开时调用什么可以我愿意？？

Answer 1

如果您只想在选择该项目时执行某些操作，则可以将整个 switch 语句包装在 if 中:

public void onCheckedChanged(CompoundButton v, boolean isChecked) {
    if (isChecked) {
        switch (v.getId()){
            // cases go here
        }
    }
}