[英]Does this situation cause Memory Leak?
我正在写一个android项目,我写了这些代码,我想知道我的代码是否会引起一些内存泄漏。
正如您将看到的那样,我在FoldActivity中设置了“ OnItemSelectedListener”,然后在FoldFragment中实现了“ ItemSelectedListener”,因此该片段始终监视侦听器,我担心当替换一个片段时,该片段可以被gc检索吗?
我认为该片段始终具有来自foldActivity的引用,这导致gc即使将其替换为其他片段也无法检索它。
public class FolderActivity extends Activity {
// ...
Spinner spinner;
protected void onCreate(Bundle savedInstanceState) {
// ...
final View spinnerView = inflater.inflater(R.layout.category_spinner, null);
spinner = spinnerView.findViewById(R.id.categorySpinner);
// ...
}
protected void onPostCreate(Bundle savedInstanceState) {
// ...
if (getFragmentManager.findFragmentById(R.id.fragment) == null) {
Fragment folderFragment = new folderFragment();
if (getIntent().hasExtra(EXTRA_DIR)) {
Bundle args = new Bundle();
args.putString(FolderFragment.EXTRA_DIR, getIntent().getStringExtra(EXTRA_DIR));
folderFragment.setArguments(args);
}
}
showFragment(folderFragment);
}
public void showFragment(Fragment fragment) {
spinner.setOnItemSelectedListener((folderFragment)fragment);
getFragmentManager()
.beginTransaction()
.addToBackStack(null)
.replace(R.id.fragment, fragment)
.commit();
}
}
public class FoldFragment extends Fragment implements AdapterView.OnItemSelectedListener {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
Log.d(LOG_TAG, "item selected");
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
Log.d(LOG_TAG, "nothing selected");
}
}
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