通过使用SharedPreferences在ListView中保存ToggleButton状态
我想通过SharedPreferences在下面的代码中保存我的ToggleButton状态。 请指导我。 非常感谢。
public class MyAdapterList extends BaseAdapter {
private Context context;
private List text;
public MyAdapterList(Context context, List text) {
this.context = context;
this.text = text;
}
@Override
public int getCount() {
return text.size();
}
@Override
public Object getItem(int position) {
return text.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.item_view, null, false);
TextView tv = (TextView) view.findViewById(R.id.textView);
tv.setText(text.get(position));
Typeface tf = Typeface.createFromAsset(context.getAssets(), "fonts/b_titr.ttf");
tv.setTypeface(tf);
tv.setTextColor(Color.parseColor("#003366"));
tv.setTypeface(tv.getTypeface(), Typeface.BOLD);
final ToggleButton toggleButton = (ToggleButton) view.findViewById(R.id.t_button);
final MyDatabaseHelper myDatabaseHelper = new MyDatabaseHelper(context);
toggleButton.setBackgroundResource(R.drawable.favorite_not_selected);
toggleButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (toggleButton.isChecked()) {
myDatabaseHelper.insert(text.get(position));
toggleButton.setBackgroundResource(R.drawable.favorite_selected);
Toast.makeText(context, "Was added to the list of favorites", Toast.LENGTH_SHORT).show();
} else {
myDatabaseHelper.deletedData(text.get(position));
Toast.makeText(context, "Removed from favorites", Toast.LENGTH_SHORT).show();
toggleButton.setBackgroundResource(R.drawable.favorite_not_selected);
}
}
});
return view;
}
}
如果我得到它正确的存储在某些地方与唯一键的数据库中的检查项目（如; - 名称，如果它是唯一的）..获取列表检查通过构造函数和检查getview()如果存在比让它检查，否则使其不受检查..你也可以使用共享偏好..这两种技术都需要一个独特的价值。
您可以使用下面的代码保存切换按钮状态
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
ToggleButton toggle = (ToggleButton) findViewById(R.id.toggle);
toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
prefs.edit().putBoolean("value", isChecked).commit();
}
});
让他们回来使用
Boolean value = prefs.getBoolean("value", false);
static ArrayList<String> toogleValue=new ArrayList<String>();
ToggleButton toggle = (ToggleButton) findViewById(R.id.toggle);
if(toogleValue.contains("id"))
{
toggle.setChecked(true)
}else
{
toggle.setChecked(false);
}
toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked)
{
toogleValue.add("id")
}else
{
if(toogleValue.contains(id))
toogleValue.remove("id")
}
}
});
I hope its help you.
上一篇: Saving ToggleButton state in ListView by using SharedPreferences