我正在编写一个Android应用程序。需要传递int值。我有一个listview,它有contextmenu.I必须启动Intent.Action_Call。当我开始我的意图。我的申请将转到后台。当意图完成我的应用程序开始调查。我的问题是;我没有得到用户点击的位置。我尝试插入putExtra但在onActivityResult中无法接受我的用户点击的位置值和值变为零。如何我能得到吗?
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
selectedPosition = info.position;
//in here , this value is true.
Toast.makeText(AnaMenu.this, String.valueOf(selectedPosition), Toast.LENGTH_LONG).show();
switch (item.getItemId()) {
case MENU_Ara:
Intent i = getIntent();
final ArrayList<String> secilmis = i.getStringArrayListExtra("listem");
Intent ara = new Intent(Intent.ACTION_CALL);
ara.setData(Uri.parse("tel:" + secilmis.get(info.position).toString()));
ara.putExtra("selected", selectedPosition);
startActivityForResult(ara, AnketDegerlendirmesi);
return true;
}
return super.onContextItemSelected(item);
}
protected void onActivityResult(final int requestCode, int resultCode, final Intent data) {
if (requestCode == AnketDegerlendirmesi){
Toast.makeText(AnaMenu.this,String.valueOf(selectedPosition),Toast.LENGTH_LONG).show();
final AlertDialog.Builder mBuilder = new AlertDialog.Builder(AnaMenu.this);
mBuilder.setTitle("Deger");
mBuilder.setIcon(R.drawable.ic_build_black_24dp);
mBuilder.setMultiChoiceItems(afteractivitydialogitems, dialogcheckeditems, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int position, boolean isChecked) {
if (isChecked){
mUserselecteditems.add(Integer.valueOf(dialogdegerleri[position]));
}
if (!isChecked) {
if (mUserselecteditems.contains(Integer.valueOf(dialogdegerleri[position]))){
mUserselecteditems.remove(Integer.valueOf(dialogdegerleri[position]));
}
}
}
});
mBuilder.setCancelable(false);
mBuilder.setPositiveButton("Tamamdır.", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String items = "";
toplamaislemi = 0;
for (int item : mUserselecteditems) {
items += "-" + item + "\n";
toplamaislemi = toplamaislemi + item;
//When i want to get this value.Value is always zero(0)
String returnString = data.getStringExtra("selected");
kullanıcısayıdegerlistesi.remove(String.valueOf(returnString));
kullanıcısayıdegerlistesi.add(Integer.valueOf(returnString),String.valueOf(toplamaislemi));
oyunTextView.notifyDataSetChanged();
}
} ) .show();
}
super.onActivityResult(requestCode, resultCode, data);
}
答案 0 :(得分:2)
听起来你似乎能够称之为:
Intent i = new Intent(...);
i.putExtra("some_key", someValue);
startActivityForResult(i, requestCode);
然后,当您收到结果时:
protected void onActivityResult(... Intent data) {
data.getExtra("some_key"); // should be `someValue` from above
}
不幸的是,这不是它的工作原理。 Intent data
的{{1}}参数与您用于启动该活动的onActivityResult()
不同。您启动的活动可以完全控制Intent
意图是否为非空,以及其中的内容。
通常对于公共API,有关于data
意图中可能包含的内容的文档。
答案 1 :(得分:0)
首先,将它放在onContextItemSelected
上SharedPreferences settings = getSharedPreferences("PREFS_NAME", MODE_PRIVATE);
SharedPreferences.Editor editor = settings.edit();
editor.clear();
editor.putInt("kelime", selectedPosition);
editor.commit();
在鳕鱼上方定居后,设置onActivityResult
SharedPreferences settings = getSharedPreferences("PREFS_NAME", MODE_PRIVATE);
int selec = settings.getInt("kelime",selectedPosition);
最后,将适配器设置为void:
kullanıcısayıdegerlistesi.remove(selec);
kullanıcısayıdegerlistesi.add(selec ,String.valueOf(sonuc));