[英]Android: Toggle Button On: Show Fragment Off: Hide Fragment
我想切換按鈕以顯示我的片段,當它被單擊時以及再次單擊它以移除我的片段或將其隱藏時。 基本上〜打開:顯示關閉:隱藏
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
Shower_fragment shower_fragment = new Shower_fragment();
android.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.linear_shower, shower_fragment, "Shower");
if(isChecked){
fragmentTransaction.show(shower_fragment);
fragmentTransaction.commit();
}else{
fragmentTransaction.hide(shower_fragment);
fragmentTransaction.commit();
}
}
我認為您忘記了調用getFragmentManager();
Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
{
Shower_fragment shower_fragment = new Shower_fragment();
FragmentManager fm = getFragmentManager();
if(null == fm){return;}
if(isChecked)
{
fm.beginTransaction();
.add(R.id.linear_shower, shower_fragment, "Shower");
.show()
.commit();
}else
{
fm.beginTransaction();
.add(R.id.linear_shower, shower_fragment, "Shower");
.hide()
.commit();
}
}
它可以這樣工作。 :D〜注意Else子句中的新片段對象。
ToggleButton toggleButton = (ToggleButton) findViewById(R.id.toggleButton);
toggleButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
Shower_fragment shower_fragment = new Shower_fragment();
android.app.FragmentManager fragmentManager = getFragmentManager();
if( null == fragmentManager){
Toast.makeText(getApplication(), "Null Fragment Manager", Toast.LENGTH_LONG).show();
return;}
if(isChecked){
Toast.makeText(getApplication(),"If Clicked", LENGTH_SHORT).show();
fragmentManager.beginTransaction()
.add(R.id.linear_shower, shower_fragment, "Shower")
.show(shower_fragment)
.commit();
}else{
Toast.makeText(getApplication(), "Else Clicked", LENGTH_SHORT).show();
Shower_fragment shower_fragmentElse = (Shower_fragment) fragmentManager.findFragmentByTag("Shower");
fragmentManager.beginTransaction()
.hide(shower_fragmentElse)
.commit();
}
}
});
順便說一句,放置Override方法的位置應該不成問題。
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