如何在android中两个片段之间的onActivityResult（）方法中访问？答案

【问题标题】：How to access in onActivityResult() method between two fragments in android?如何在android中两个片段之间的onActivityResult（）方法中访问？
【发布时间】：2013-10-28 06:09:48
【问题描述】：

我在两个片段之间制作演示应用程序 FragmentActivity，例如一个是普通扩展片段，第二个是扩展 DialogFragment。

我不会在第一个片段中处理 onActivityResult() 方法，因为第一个片段打开对话框片段确定按下然后访问该方法。

请帮助我感谢您的进步

第一个片段代码，

public class MyListFragment extends Fragment {

    View mView;
    protected static final int REQ_CODE = 1010;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        mView = inflater.inflate(R.layout.list_fragment, container, false);
        return view;
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == Activity.RESULT_OK) {
            if (requestCode == REQ_CODE) {
                // Access here
            }
        }
        super.onActivityResult(requestCode, resultCode, data);
    }
}

【问题讨论】：

标签： android android-fragments android-fragmentactivity android-dialogfragment

【解决方案1】：

我找到了答案MYSELF，

这就是我处理片段和对话片段之间通信的方式，

MyListFragment 代码，

public class MyListFragment extends Fragment {

    View mView;
    protected static final int REQ_CODE = 1010;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        mView = inflater.inflate(R.layout.list_fragment, container, false);

        Button mButton = (Button) mView.findViewById(R.id.button);
        mButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                MyDialogFragment dialog = new MyDialogFragment();
                dialog.setTargetFragment(MyListFragment.this, REQ_CODE);
                dialog.show(getFragmentManager(), "dialog");
            }
        });

        return view;
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == Activity.RESULT_OK) {
            if (requestCode == REQ_CODE) {
                // Access here
                Log.i(TAG, "onActivityResult Access here method");
            }
        }
        super.onActivityResult(requestCode, resultCode, data);
    }
}

DialogFragment代码，

public class MyDialogFragment extends DialogFragment {

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setMessage("My dialog message")
        .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                notifyToTarget(Activity.RESULT_OK);
            }
        })
        .setNegativeButton("Cancel",
                new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                notifyToTarget(Activity.RESULT_CANCELED);
            }
        });
        return builder.create();
    }

    private void notifyToTarget(int code) {
        Fragment targetFragment = getTargetFragment();
        if (targetFragment != null) {
            targetFragment.onActivityResult(getTargetRequestCode(), code, null);
        }
    }
}

此代码希望对我们有所帮助。

【讨论】：