我使用滑动菜单从导航抽屉中获得了这个名为BmiFragment的片段活动,我想从中进入一个新的活动,即BmiCalculator.class来执行某些任务,但我无法这样做。我试图通过实现onclicklistener到片段活动来做到这一点。在XML布局中,通过单击它们只需要四个按钮我想打开一个新活动来执行某项任务。请给我一些帮助。 Click here to view for errors
import android.app.Fragment;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
public class BmiFragment extends Fragment implements OnClickListener {
public BmiFragment() {
}
Button btn, btn1, btn2, btn3;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_bmi, container,
false);
btn = (Button) rootView.findViewById(R.id.button1);
btn.setOnClickListener(this);
btn1 = (Button) rootView.findViewById(R.id.button2);
btn1.setOnClickListener(this);
btn2 = (Button) rootView.findViewById(R.id.button3);
btn2.setOnClickListener(this);
btn3 = (Button) rootView.findViewById(R.id.button4);
btn3.setOnClickListener(this);
return rootView;
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button1:
Intent intent = new Intent(this, BmiCalculator.class);//***ERROR: The constructor Intent(BmiFragment, Class<BmiCalculator>) is undefined***//
startActivity(intent);[enter image description here][1]
break;
case R.id.button2:
break;
case R.id.button3:
break;
case R.id.button4:
break;
default:
break;
}
}
}
答案 0 :(得分:0)
Intent intent = new Intent(this,BmiCalculator.class); // 错误:构造函数Intent(BmiFragment,Class)未定义 // startActivity(intent); [在此处输入图像描述]
而不是这个用途
Intent intent = new Intent(getActivity(), BmiCalculator.class);
startActivity(intent);