@Override
public boolean onPreferenceChange(Preference preference, Object value) {
if (preference.getKey().equals("lock_pattern_on")) {
SwitchPreference service = (SwitchPreference) preference;
service.setChecked((Boolean) value);
// 由未开启状态转为开启状态
if ((Boolean) value) {
// 默认没有创建成功，手势密码不存在
PreferenceManager.getDefaultSharedPreferences(this.getActivity().getApplicationContext())
.edit()
.putBoolean("lock_pattern_on", false)
.commit();
this.getFragmentManager()
.beginTransaction()
.replace(R.id.settings_container, new CreatePasswordFragment())
.commit();
} else {
// 默认没有取消成功，手势密码依旧存在
PreferenceManager.getDefaultSharedPreferences(this.getActivity().getApplicationContext())
.edit()
.putBoolean("lock_pattern_on", true)
.commit();
// 取消手势密码，要先验证
LockPatternActivity.IntentBuilder.newPatternComparator(
getActivity().getApplicationContext())
.startForResult(this, REQ_ENTER_PATTERN);
}
}
return true;
}
// 正式开启第三方的dialog
public void startCreateDialog() {
LockPatternActivity.IntentBuilder.newPatternCreator(getActivity().getApplicationContext())
.startForResult(this, REQ_CREATE_PATTERN);
}