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我有活動，有兩個片段。 FragmentSurahDetail和FragmentTafsir。當事件「OnOpenTafsir」時添加FragmentTafsir。如果添加FragmentTafsir並更改方向，則FragmentTafsir將從屏幕消失。任何想法如何解決它？片段從屏幕上消失
這裏是我的代碼：
public class ActivitySurahDetail extends AppCompatActivity implements FragmentSurahDetail.SurahListener {
Toolbar toolbar;
final String LOG_TAG = "ASD Tag";
private static final String TAFSIR_FRAGMENT_TAG = "tafsir_fragment";
private static final String SURAH_DETAIL_TAG = "surah_fragment";
int surah_id;
FragmentTafsir fragmentTafsir;
private boolean favoriteMode;
FragmentTransaction fragmentTransaction;
FragmentSurahDetail fragmentSurahDetail;
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
super.onBackPressed();
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.surah_detail_activity);
Bundle extras = getIntent().getExtras();
surah_id = extras.getInt("item_id");
favoriteMode = extras.getBoolean("favoriteMode", false);
fragmentSurahDetail = new FragmentSurahDetail();
Bundle args = new Bundle();
args.putBoolean("favoriteMode", true);
args.putInt("item_id", surah_id);
fragmentSurahDetail.setArguments(args);
getSupportFragmentManager().beginTransaction().replace(R.id.surah_detail_container, fragmentSurahDetail, SURAH_DETAIL_TAG).commit();
// Show the Up button in the action bar.
toolbar = (Toolbar) findViewById(R.id.tool_bar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
@Override
public void onOpenTafsir(int surah, int ayah) {
fragmentTafsir = new FragmentTafsir();
fragmentTransaction = getSupportFragmentManager().beginTransaction();
Bundle extras = new Bundle();
extras.putInt("surah", surah);
extras.putInt("ayah", ayah);
fragmentTafsir.setArguments(extras);
fragmentTransaction.addToBackStack(TAFSIR_FRAGMENT_TAG);
fragmentTransaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
fragmentTransaction.replace(R.id.surah_detail_container, fragmentTafsir, TAFSIR_FRAGMENT_TAG).commit();
}
}