Android保存和恢复TextView文本ViewPager fragment

Question

在我的 ViewPager 中，我有一些 fragment ，在 TextView 的页面文本之间切换后，我动态更改了一些 TextView 文本，并且我无法从 instance

保存和恢复它们

这是我的代码，不工作

private       String                       value1;
private       String                       value2;
private       String                       value3;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //@formatter:off
        context            = getActivity().getBaseContext();
        activity           = getActivity();
    //@formatter:on
}
@Override
public void onViewStateRestored(@Nullable Bundle inState) {
    super.onViewStateRestored(inState);
    if (inState != null) {
        inState.getString("value1", value1);
        inState.getString("value2", value2);
        inState.getString("value3", value3);

        sahmiyeh_value_1.setText(value1);
        sahmiyeh_value_2.setText(value2);
        sahmiyeh_value_3.setText(value3);
    }
}

@Override
public void onSaveInstanceState(@Nullable Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putString("value1", sahmiyeh_value_1.getText().toString());
    outState.putString("value2", sahmiyeh_value_2.getText().toString());
    outState.putString("value3", sahmiyeh_value_3.getText().toString());
}

Answer 1

你可以试试freezesText

<TextView 
 ... 
 android:freezesText="true" />

来自文档:

If set, the text view will include its current complete text inside of its frozen icicle in addition to meta-data such as the current cursor position. By default this is disabled; it can be useful when the contents of a text view is not stored in a persistent place such as a content provider