Android首选项onclick事件
Android首选项onclick事件
提问于 2011-03-17 03:27:19
在我的preferences.xml中，我有一个偏好元素，如下所示：
<Preference android:title="About" />我想分配onClick事件，所以如果用户会点击它，我将能够做打开新的Intent或浏览器。我试着像使用按钮一样去做，但这似乎不起作用。
回答 2
Stack Overflow用户
回答已采纳
发布于 2011-03-17 03:31:37
您需要为项目设置android:key：
<Preference
android:key="myKey"
android:title="About" />然后，您可以在代码中执行以下操作：
Preference myPref = (Preference) findPreference("myKey");
myPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
public boolean onPreferenceClick(Preference preference) {
// open browser or intent here
return true;
}
});Stack Overflow用户
发布于 2011-03-17 03:31:34
您需要使用onPreferenceTreeClick事件。
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
/** TODO: Refactor and get rid of the if's using subclasses */
if (mGsmUmtsOptions != null &&
mGsmUmtsOptions.preferenceTreeClick(preference) == true) {
return true;
} else if (mCdmaOptions != null &&
mCdmaOptions.preferenceTreeClick(preference) == true) {
if (Boolean.parseBoolean(
SystemProperties.get(TelephonyProperties.PROPERTY_INECM_MODE))) {
mClickedPreference = preference;
// In ECM mode launch ECM app dialog
startActivityForResult(
new Intent(TelephonyIntents.ACTION_SHOW_NOTICE_ECM_BLOCK_OTHERS, null),
REQUEST_CODE_EXIT_ECM);
}
return true;
} else if (preference == mButtonPreferredNetworkMode) {
//displays the value taken from the Settings.System
int settingsNetworkMode = android.provider.Settings.Secure.getInt(mPhone.getContext().
getContentResolver(), android.provider.Settings.Secure.PREFERRED_NETWORK_MODE,
preferredNetworkMode);
mButtonPreferredNetworkMode.setValue(Integer.toString(settingsNetworkMode));
return true;
} else if (preference == mButtonDataRoam) {
if (DBG) log("onPreferenceTreeClick: preference == mButtonDataRoam.");
//normally called on the toggle click
if (mButtonDataRoam.isChecked()) {
// First confirm with a warning dialog about charges
mOkClicked = false;
new AlertDialog.Builder(this).setMessage(
getResources().getString(R.string.roaming_warning))
.setTitle(android.R.string.dialog_alert_title)
.setIconAttribute(android.R.attr.alertDialogIcon)
.setPositiveButton(android.R.string.yes, this)
.setNegativeButton(android.R.string.no, this)
.show()
.setOnDismissListener(this);
} else {
mPhone.setDataRoamingEnabled(false);
}
return true;
} else if (preference == mButtonDataEnabled) {
if (DBG) log("onPreferenceTreeClick: preference == mButtonDataEnabled.");
ConnectivityManager cm =
(ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
cm.setMobileDataEnabled(mButtonDataEnabled.isChecked());
return true;
} else if (preference == mLteDataServicePref) {
String tmpl = android.provider.Settings.Secure.getString(getContentResolver(),
android.provider.Settings.Secure.SETUP_PREPAID_DATA_SERVICE_URL);
if (!TextUtils.isEmpty(tmpl)) {
TelephonyManager tm = (TelephonyManager) getSystemService(
Context.TELEPHONY_SERVICE);
String imsi = tm.getSubscriberId();
if (imsi == null) {
imsi = "";
}
final String url = TextUtils.isEmpty(tmpl) ? null
: TextUtils.expandTemplate(tmpl, imsi).toString();
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
} else {
android.util.Log.e(LOG_TAG, "Missing SETUP_PREPAID_DATA_SERVICE_URL");
}
return true;
} else {
// if the button is anything but the simple toggle preference,
// we'll need to disable all preferences to reject all click
// events until the sub-activity's UI comes up.
preferenceScreen.setEnabled(false);
// Let the intents be launched by the Preference manager
return false;
}
} 页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/5330677
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