如何保存微调器，以节省/共享preferences [英] How to save spinner to saved/shared preferences
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问题描述
我能保存字符串在我保存preferences但有困难救了我的微调。
公共类饮食延伸活动{ 私人共享preferences共享preferences;
微调spnCalorieRange;
下面是我的onCreate：
共享preferences = preferenceManager.getDefaultShared preferences（本）;字符串strAge = Integer.toString（年龄）;
串strHeight = Integer.toString（高度）;
字符串strWeight = Integer.toString（重量）;名称= loadSaved preference（名称）;
strAge = loadSaved preference（strAge）;
strHeight = loadSaved preference（strHeight）;
strWeight = loadSaved preference（strWeight）;etName.setText（名）;
etAge.setText（strAge）;
etHeight.setText（strHeight）;
etWeight.setText（strWeight）;
这是我的微调在我的onCreate：
=微调（微调）findViewById（R.id.spnCalorieRange）;
适配器= ArrayAdapter.createFromResource（这一点，R.array.Calorie_Range，android.R.layout.simple_spinner_dropdown_item）;
adapter.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
spinner.setAdapter（适配器）; spinner.setOnItemSelectedListener（新AdapterView.OnItemSelectedListener（）{ @覆盖
公共无效onItemSelected（适配器视图＆LT;＆GT;母公司，观景，
INT位置，长的id）{
长项= parent.getItemIdAtPosition（位置）;
。字符串POS = spinner.getSelectedItem（）的toString（）;
//shared$p$pferences.edit().putInt(\"$p$pF_SPINNER位置）.commit（）;
如果（项目== 0）{
deficitPercentage = 0.05;
}
否则如果（项目== 1）
{
deficitPercentage = 0.1;
}
否则如果（项目== 2）
{
deficitPercentage = 0.15;
}
否则，如果（项目== 3）
{
deficitPercentage = 0.2;
}
否则，如果（项目== 4）
{
deficitPercentage = 0.25;
}
其他
{
deficitPercentage = 0.3;
}
//editor.putString(\"pos，POS机）;
//editor.commit（）;
} @覆盖
公共无效onNothingSelected（适配器视图＆LT;＆GT;母公司）{
// TODO自动生成方法存根 } }）;
这是一个按钮，在这里我节省了串并背着我的onclick微调
年龄=（int）的Double.parseDouble（etAge.getText（）的toString（））;
高度=（int）的Double.parseDouble（etHeight.getText（）的toString（））;
重量=（int）的Double.parseDouble（etWeight.getText（）的toString（））;
//保存preferences
字符串strAge = Integer.toString（年龄）;
串strHeight = Integer.toString（高度）;
字符串strWeight = Integer.toString（重量）; 。名称= etName.getText（）的toString（）;
节省preference（名，名）; 。strAge = etAge.getText（）的toString（）;
节省preference（strAge，strAge）; 。strHeight = etHeight.getText（）的toString（）;
节省preference（strHeight，strHeight）; 。strWeight = etWeight.getText（）的toString（）;
节省preference（strWeight，strWeight）;:
解决方案
在你的 onItemSelected 地点：
INT spinnerPosition = spinner.getSelectedItemPosition（）;
saveSpinnerPosition（spinnerPosition）;
Save方法
公共无效saveSpinnerPosition（INT位置）{
共享preferences = preferenceManager.getDefaultShared preferences（本）;
共享preferences.Editor编辑=共享preferences.edit（）;
prefEditor.putInt（spnCalorieRange位置）;
prefEditor.apply（）;
}
Load方法
公共无效loadSpinnerPosition {
共享preferences = preferenceManager.getDefaultShared preferences（本）;
INT位置=共享preferences .getIntspnCalorieRange， - 1）;
如果（spinnerValue -1个） //设置Spinner的值
spinner.setSelection（位置）;
}
要放纺纱回到位置，叫 loadSpinnerPosition 在的onCreate
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编辑：
因为我注意到<一href=\"http://stackoverflow.com/questions/35601149/how-to-save-radio-button-status-to-saved-shared-$p$pferences\">this帖子也是你的问题，U还可以做一切的一次
在你的活动顶
INT spinnerPosition;
在你的 onItemSelected 地点：
spinnerPosition = spinner.getSelectedItemPosition（）;
Save方法
公共无效saveMethod（）{
共享preferences = preferenceManager.getDefaultShared preferences（本）;
共享preferences.Editor编辑=共享preferences.edit（）;
editor.putBoolean（性别，radioSexButton.isChecked（））;
editor.putBoolean（男，rdoMale.isChecked（））;
prefEditor.putInt（spnCalorieRange，spinnerPosition）;
prefEditor.apply（）;
}
Load方法
公共无效loadMethod（）{
共享preferences = preferenceManager.getDefaultShared preferences（本）;
INT位置=共享preferences .getIntspnCalorieRange， - 1）;
radioSexButton.setChecked（共享preferences.getBoolean（性别，FALSE））;
rdoMale.setChecked（共享preferences.getBoolean（男，FALSE））; 如果（spinnerValue -1个） //设置Spinner的值
spinner.setSelection（位置）;
}
然后拨打 saveMethod（）当u要保存所有的状态，并调用 loadMethod（）当u想要加载所有的状态
应该可以帮助你出来
I am able to save Strings in my saved preferences but having difficulty saving my spinner.
public class Diet extends Activity {
private SharedPreferences sharedPreferences;
Spinner spnCalorieRange;
Here is my onCreate:
sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
String strAge = Integer.toString(age);
String strHeight = Integer.toString(height);
String strWeight = Integer.toString(weight);
name = loadSavedPreference("name");
strAge = loadSavedPreference("strAge");
strHeight = loadSavedPreference("strHeight");
strWeight = loadSavedPreference("strWeight");
etName.setText(name);
etAge.setText(strAge);
etHeight.setText(strHeight);
etWeight.setText(strWeight);
This is my Spinner in my onCreate:
spinner = (Spinner)findViewById(R.id.spnCalorieRange);
adapter = ArrayAdapter.createFromResource(this, R.array.Calorie_Range, android.R.layout.simple_spinner_dropdown_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
long item = parent.getItemIdAtPosition(position);
String pos =spinner.getSelectedItem().toString();
//sharedPreferences.edit().putInt("PREF_SPINNER", position).commit();
if (item == 0){
deficitPercentage = .05;
}
else if (item ==1)
{
deficitPercentage = .1;
}
else if (item ==2)
{
deficitPercentage = .15;
}
else if (item ==3)
{
deficitPercentage = .2;
}
else if (item ==4)
{
deficitPercentage = .25;
}
else
{
deficitPercentage = .3;
}
//editor.putString("pos", pos);
//editor.commit();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
});
This is in my onCLick behind a button, where I'm saving the strings and spinner
age = (int) Double.parseDouble(etAge.getText().toString());
height = (int) Double.parseDouble(etHeight.getText().toString());
weight = (int) Double.parseDouble(etWeight.getText().toString());
//Save Preferences
String strAge = Integer.toString(age);
String strHeight = Integer.toString(height);
String strWeight = Integer.toString(weight);
name = etName.getText().toString();
savePreference("name",name);
strAge = etAge.getText().toString();
savePreference("strAge",strAge);
strHeight = etHeight.getText().toString();
savePreference("strHeight",strHeight);
strWeight = etWeight.getText().toString();
savePreference("strWeight",strWeight);:
解决方案
In your onItemSelected place:
int spinnerPosition = spinner.getSelectedItemPosition();
saveSpinnerPosition(spinnerPosition);
Save method
public void saveSpinnerPosition(int position){
sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor editor = sharedPreferences.edit();
prefEditor.putInt("spnCalorieRange",position);
prefEditor.apply();
}
Load method
public void loadSpinnerPosition{
sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
int position= sharedPreferences .getInt"spnCalorieRange",-1);
if(spinnerValue > -1)
// set the value of the spinner
spinner.setSelection(position);
}
To put spinners back to position, call loadSpinnerPosition in your onCreate
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Edit:
because I noticed this post is also your question, u can also do everything at once:
At the top of your activity:
int spinnerPosition;
In your onItemSelected place:
spinnerPosition = spinner.getSelectedItemPosition();
Save method
public void saveMethod(){
sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putBoolean("Gender", radioSexButton.isChecked());
editor.putBoolean("Male", rdoMale.isChecked());
prefEditor.putInt("spnCalorieRange",spinnerPosition);
prefEditor.apply();
}
Load method
public void loadMethod(){
sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
int position= sharedPreferences .getInt"spnCalorieRange",-1);
radioSexButton.setChecked(sharedPreferences.getBoolean("Gender", false));
rdoMale.setChecked(sharedPreferences.getBoolean("Male", false));
if(spinnerValue > -1)
// set the value of the spinner
spinner.setSelection(position);
}
Then call saveMethod() when u want to save all your states, and call loadMethod() when u wanna load all your states
Should help u out
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