我已切换操作栏并且工作正常但我希望默认情况下通过设置XML android:checked="true"
以及代码
Switch switchButton=new Switch(getActivity());
switchButton.setEnabled(true);
当应用程序启动时,默认情况下始终未选中。这是我的开关代码
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
menu.clear();
inflater.inflate(R.menu.switch_menu,menu);
MenuItem switchItem=menu.findItem(R.id.toggle_loc);
Switch switchButton=new Switch(getActivity());
switchButton.setEnabled(true);
MenuItemCompat.setActionView(switchItem,switchButton);
switchButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked){
Log.d(TAG,"Switch Button Is Checked");
}
else {
Log.d(TAG,"Switch Button Is UnChecked");
}
}
});
R.menu.switch_menu
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item android:id="@+id/toggle_loc"
android:title=""
android:visible="true"
app:actionLayout="@layout/switch_button"
app:showAsAction="ifRoom">
</item>
</menu>
布局/ switch_button&#34;
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content" android:layout_height="wrap_content">
<Switch
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/Switch_Location"
android:enabled="true"
android:checked="true"
/>
</RelativeLayout>
默认情况下,请帮助我检查此开关。
答案 0 :(得分:1)
使用
switchButton.setChecked(true);
你也这样做错了:
Switch switchButton=new Switch(getActivity());
而你应该做
Switch switchButton = (Switch) switchItem.getActionView().findViewById(R.id.Switch_Location);
所以看起来应该是这样的:
Switch switchButton = (Switch) switchItem.getActionView().findViewById(R.id.Switch_Location);
switchButton.setChecked(true);