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单击另一个片段中的按钮后,在片段中添加新的文本视图

[英]Add new textview in fragment after click on button in another fragment

我有两个片段。 在我点击第一个按钮后,它会移动到带有一些 SharedPreferences 的第二个片段。 每次单击该按钮时,我都想在第二个片段中使用来自 SharedPreferences 的文本在另一个下添加新的文本视图。

这是我想添加文本视图的第二个片段的代码

    public class HomeFragment extends Fragment{


    public HomeFragment() {
        // Required empty public constructor
    }

    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.fragment_home, container, false);

        SharedPreferences sharedPreferences = this.getActivity().getSharedPreferences("MyData", Context.MODE_PRIVATE);
        String Income =sharedPreferences.getString("Income","N/A");

        LinearLayout m_ll = (LinearLayout) view.findViewById(R.id.home);

        m_ll.addView(createNewTextView(Income));
        return m_ll;
    }

    private TextView createNewTextView(String text) {
        final LinearLayoutCompat.LayoutParams lparams = new LinearLayoutCompat.LayoutParams(LinearLayoutCompat.LayoutParams.WRAP_CONTENT, LinearLayoutCompat.LayoutParams.WRAP_CONTENT);
        final TextView textView = new TextView(getActivity());
        textView.setLayoutParams(lparams);
        textView.setText("New text: " + text);
        return textView;
    }
}

它添加带有正确文本的文本视图,但是下次当我按下按钮时,它只会更改文本视图的文本(或在另一个文本视图上创建一个文本视图?)

XML

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:id="@+id/home"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.xxxx.HomeFragment">

<!-- TODO: Update blank fragment layout -->
</LinearLayout>

我设法让它与 TinyDB 一起工作,它可以将字符串数组列表存储为 SharedPreferences。

这就是我在带有按钮的片段中所拥有的

TinyDB tinydb=new TinyDB(getActivity().getApplicationContext());

    incometemp = edttxt.getText().toString();
    mylist= tinydb.getListString("income");
    mylist.add(incometemp );
    tinydb.putListString("income", mylist);

第二个片段

TinyDB tinydb;
    ArrayList<String> mylist = new ArrayList<>();

    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.fragment_home, container, false);
        tinydb = new TinyDB(getActivity().getApplicationContext());
        mylist = tinydb.getListString("income");
        LinearLayout m_ll = (LinearLayout) view.findViewById(R.id.home);

        for (int i=0;i<mylist.size();i++) {
            m_ll.addView(createNewTextView(mylist.get(i)));
        }


        return m_ll;
    }

    private TextView createNewTextView(String text) {
        final LinearLayoutCompat.LayoutParams lparams = new LinearLayoutCompat.LayoutParams(LinearLayoutCompat.LayoutParams.WRAP_CONTENT, LinearLayoutCompat.LayoutParams.WRAP_CONTENT);
        final TextView textView = new TextView(getActivity());
        textView.setLayoutParams(lparams);
        textView.setText("New text: " + text);
        return textView;
    }
}

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