在我们的项目中,我们使用的SwitchPreference类似于wifi settings.user可以通过点击切换按钮来切换值,用户可以通过点击标题查看更多选项。
但这不适用于棒棒糖。我可以在棒棒糖中看到一些行为改变。
在kitkat:
当用户点击切换按钮时,会调用 onPreferenceChanged 回调,当用户点击标题时,会调用 onPreferenceClicked 。
在棒棒糖中: 您点击切换按钮或标题 onPreferenceClicked 始终被调用,然后调用 onPreferenceChanged 。 如何在棒棒糖中获得相同的行为?这种行为打破了我们的功能。
答案 0 :(得分:1)
我遇到同样的问题,我发现了这个问题:https://code.google.com/p/android/issues/detail?can=2&start=0&num=100&q=&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars&groupby=&sort=&id=172425
经过一番尝试后,我发现了如何实现适用于我的案例的解决方法:
public class MySwitchPreference extends SwitchPreference {
/**
* Construct a new SwitchPreference with the given style options.
*
* @param context The Context that will style this preference
* @param attrs Style attributes that differ from the default
* @param defStyle Theme attribute defining the default style options
*/
public MySwitchPreference(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
/**
* Construct a new SwitchPreference with the given style options.
*
* @param context The Context that will style this preference
* @param attrs Style attributes that differ from the default
*/
public MySwitchPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
/**
* Construct a new SwitchPreference with default style options.
*
* @param context The Context that will style this preference
*/
public MySwitchPreference(Context context) {
super(context, null);
}
@Override
protected void onBindView(View view) {
ViewGroup viewGroup= (ViewGroup)view;
setSwitchClickable(viewGroup);
super.onBindView(view);
}
private void setSwitchClickable(ViewGroup viewGroup) {
if (null == viewGroup) {
return;
}
int count = viewGroup.getChildCount();
for(int n = 0; n < count; ++n) {
View childView = viewGroup.getChildAt(n);
if(childView instanceof Switch) {
final Switch switchView = (Switch) childView;
switchView.setClickable(true);
return;
} else if (childView instanceof ViewGroup){
ViewGroup childGroup = (ViewGroup)childView;
setSwitchClickable(childGroup);
}
}
}
然后你只需要使用你自己的&#34; MySwitchPreference&#34;直接进入SwitchPreference。
答案 1 :(得分:0)
作为一种解决方法,我创建了自定义SwitchPreference类
public class CustomSwitchPreference extends SwitchPreference {
public CustomSwitchPreference(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public CustomSwitchPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomSwitchPreference(Context context) {
super(context);
}
@Override
protected View onCreateView(ViewGroup parent) {
View view = super.onCreateView(parent);
LinearLayout switchView = (LinearLayout) ((LinearLayout) view).getChildAt(2);
switchView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final boolean newValue = !isChecked();
if (callChangeListener(newValue)) {
setChecked(newValue);
}
}
});
}
看起来很脏但是为我工作。