当我点击Android时崩溃

当按下按钮会打开电子邮件时，尝试制作一个按钮。很抱歉，我只是一个新手。任何帮助都会很棒，谢谢 当我点击fragment时崩溃，不确定出了什么问题，再次感谢您的帮助

这里是代码：

 public class Fragment_7 extends Fragment{
private Button button;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_7,
            container, false);

    final Context context = getActivity();

    Button button = (Button) getView().findViewById(R.id.button);

            button.setOnClickListener(new OnClickListener() {

                public void onClick(View arg0) {
                    // TODO Auto-generated method stub
                    sendEmail(context, new String[]{"info@bottlecapp.com"}, "Sending Email", "App Development", "");
                }
            });
            return view;
            }

 public static void sendEmail(Context context, String[] recipientList,
        String title, String subject, String body) {
    Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);

    emailIntent.setType("plain/text");

    emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, recipientList);

    emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, subject);

    emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, body);

    context.startActivity(Intent.createChooser(emailIntent, title));

     }
 }





 06-15 18:28:56.719: E/AndroidRuntime(553): FATAL EXCEPTION: main
 06-15 18:28:56.719: E/AndroidRuntime(553): java.lang.NullPointerException
 06-15 18:28:56.719: E/AndroidRuntime(553):     at      com.bottlecapp.bottlecapp.Fragment_7.onCreateView(Fragment_7.java:24)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at android.support.v4.app.Fragment.performCreateView(Fragment.java:1460)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:911)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:429)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at android.os.Handler.handleCallback(Handler.java:605)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at android.os.Handler.dispatchMessage(Handler.java:92)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at android.os.Looper.loop(Looper.java:137)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at android.app.ActivityThread.main(ActivityThread.java:4424)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at java.lang.reflect.Method.invokeNative(Native Method)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at java.lang.reflect.Method.invoke(Method.java:511)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
 06-15 18:28:56.719: E/AndroidRuntime(553):     at dalvik.system.NativeStart.main(Native Method)

---

更改

final Context=Fragment_7.this

使用
final Context=getActivity（）
由于getView返回在onCreateView中膨胀的内容，因此在onCreateView中调用它将返回null。该方法还必须返回视图对象。更改为：

public View onCreateView(LayoutInflater inflater, ViewGroup container,
    Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_7,
        container, false);

final Context context = getActivity();

Button button = (Button) view.findViewById(R.id.button);

        button.setOnClickListener(new OnClickListener() {

            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                sendEmail(context, new String[]{",com"}, "Sending Email", "", "");
            }
        });
    return view;

}

谢谢，这已经奏效了，但是现在在CreateView（LayoutInflater inflater、ViewGroup container、Bundle savedInstanceState）的公共视图上出现了错误。该方法必须返回一个视图对象。因此，您可以返回您膨胀的视图。虽然现在我没有错误，但每次单击碎片时它都会崩溃谢谢，这很有效，但现在在CreateView的公共视图上出现错误（LayoutFlater充气器、ViewGroup容器、Bundle savedInstanceState）此方法必须返回类型为View的结果-覆盖android.support.v4.app.Fragment.onCreateView您错过了返回语句非常感谢！工作真棒：D我会尽快接受你的答案，虽然现在我没有错误，但每次我点击碎片它都会崩溃