我有两个关于实施这个的问题。
第一个问题，将 TabActivity 与 PreferenceActivity 一起使用，当我单击首选项以创建首选项对话框时发生错误。
08-10 21:55:35.919: E/AndroidRuntime(1415): android.view.WindowManager$BadTokenException: 无法添加窗口 -- 令牌 android.app.LocalActivityManager$LocalActivityRecord@405296f0 无效；您的活动正在运行吗？
我找到了一个解决方案，我应该在我的代码中使用“getParent()”而不是“getApplicationContext()”或“this”，但我不知道在哪里/如何做？我不知道如何用我的 PreferenceActivity 做类似“setContext(getParent())”的事情。
我有一个与此完全相同的问题：TabActivity with ActivityGroup and PreferenceActivity child
这是我的代码：
public class MoreUserProfile extends PreferenceActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.layout.more_userprofile);
}
在我看来，我认为我应该在对话类中实现一些东西，在 onCreateDialogView() 因为android在进行对话时调用这个方法。我尽力了，但我无法解决我的问题
public class MoreUserProfileDateOfBirthDialog extends DialogPreference {
LinearLayout layout;
SharedPreferences.Editor editor;
public MoreUserProfileDateOfBirthDialog(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
setDialogLayoutResource(R.layout.more_userprofile_dialog_dateofbirth);
}
@Override
protected View onCreateDialogView() {
// TODO Auto-generated method stub
// I think I should implement some code here.
//Activity parent = new Activity();
//LayoutInflater inflater = (LayoutInflater) parent.getLayoutInflater();
//layout = (LinearLayout) inflater.inflate(R.layout.more_userprofile_dialog_dateofbirth, null);
}
protected void onBindDialogView(View view) {
layout = (LinearLayout) view.findViewById(R.id.more_userprofile_dialog_dateofbirth_linearlayout);
SharedPreferences pref = getSharedPreferences();
int day = pref.getInt("dayOfBirthday", 1);
int month = pref.getInt("monthOfBirthday", 1);
int year = pref.getInt("yearOfBirthday", 2000);
DatePicker dp = (DatePicker) view.findViewById(R.id.more_userprofile_dialog_choosedateofbirth_datePicker);
dp.init(year, month-1, day, onDateChangedListener);
layout.removeAllViews();
layout.addView(dp);
super.onBindDialogView(view);
}
DatePicker.OnDateChangedListener onDateChangedListener = new OnDateChangedListener() {
public void onDateChanged(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
// TODO Auto-generated method stub
editor = getEditor();
editor.putInt("dayOfBirthday", view.getDayOfMonth());
editor.putInt("monthOfBirthday", view.getMonth()+1);
editor.putInt("yearOfBirthday", view.getYear());
}
};
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
super.onClick(dialog, which);
if(which==DialogInterface.BUTTON_NEGATIVE){
dialog.dismiss();
}
if(which==DialogInterface.BUTTON_POSITIVE){
editor.commit();
}
}
}
第二个问题，和上面类似，但是这次是关于 TabActivity 和 ListView Adapter（用于自定义 Listview）。在每个自定义列表视图项目上都有 2 个按钮，“编辑”和“删除”。当我单击其中一个按钮时，会出现对话框。但是在我将 TabActivity 应用到我的应用程序后，按下这些按钮时出现错误。错误代码与上面类似：
08-10 22:13:56.643: E/AndroidRuntime(1427): android.view.WindowManager$BadTokenException: 无法添加窗口 -- 令牌 android.app.LocalActivityManager$LocalActivityRecord@40526c50 无效；您的活动正在运行吗？
这是我的代码：
public class ActivityListviewAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private Context context;
private ArrayList<Activities> listData = new ArrayList<Activities>();
public ActivityListviewAdapter(Context context,ArrayList<Activities> listData,) {
// TODO Auto-generated constructor stub
super();
this.context = context;
this.mInflater = LayoutInflater.from(context);
this.listData = listData;
}
public int getCount() {
// TODO Auto-generated method stub
return listData.size(); //ส่งขนาดของ List ที่เก็บข้อมุลอยู่
}
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
public View getView(final int position, View convertView, ViewGroup parent) {
final ActivityRowList activitylist;
if(convertView == null){
convertView = mInflater.inflate(R.layout.more_customizedactivity_customlistview, null);
activitylist = new ActivityRowList();
activitylist.ActivityName = (TextView) convertView.findViewById(R.id.TextView_More_Customizedactivity_Customlistview_ActivityName);
activitylist.ActivityDetail = (TextView) convertView.findViewById(R.id.TextView_More_Customizedactivity_Customlistview_ActivityDetail);
activitylist.ActivityType = (ImageView) convertView.findViewById(R.id.ImageView_Activity_ShowallActivity_Customlistview);
activitylist.EditCustomizedButton = (Button) convertView.findViewById(R.id.Button_More_Customizedactivity_Customlistview_Edit);
activitylist.DeleteCustomizedButton =(Button)convertView.findViewById(R.id.Button_More_Customizedactivity_Customlistview_Delete);
convertView.setTag(activitylist);
}else{
activitylist = (ActivityRowList) convertView.getTag();
}
activitylist.ActivityName.setText(listData.get(position).getActivityName());
activitylist.ActivityDetail.setText("MET: "+listData.get(position).getActivityMET().toString());
activitylist.ActivityType.setImageResource(R.drawable.activity_type_customized);
activitylist.EditCustomizedButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
editNewActivityDialog(listData.get(position).getActivityName(), listData.get(position).getActivityMET(),position);
}
});
activitylist.DeleteCustomizedButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
confirmDeleteCustomizedDialog(listData.get(position).getActivityName(),listData.get(position));
}
});
return convertView;
}
private void confirmDeleteCustomizedDialog(final String ActivityNameInput,final Activities listDataposition){
// TODO Auto-generated method stub
AlertDialog alertDialog = new AlertDialog.Builder(mInflater.getContext()).create();
alertDialog.setTitle("Confirm Delete");
alertDialog.setMessage("Do you want to delete:\"" + ActivityNameInput +"\"" );
alertDialog.setIcon(R.drawable.ic_launcher);
alertDialog.setButton(DialogInterface.BUTTON_POSITIVE,"Confirm", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Some codes here
});
alertDialog.setButton(DialogInterface.BUTTON_NEGATIVE,"Cancel",new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
dialog.dismiss();
}
});
alertDialog.show();
}
private void editNewActivityDialog(final String ActivityNameBefore, float ActivityMETBefore,final int ListPosition) {
// TODO Auto-generated method stub
final Dialog dialog = new Dialog(mInflater.getContext());
dialog.setContentView(R.layout.more_customizedactivity_dialog_addnew);
final EditText EditText_Addnewactivity_Dialog_ActivityName=(EditText)dialog.findViewById(R.id.EditText_More_Customizedactivity_Addnewactivity_Dialog_ActivityName);
final EditText EditText_Addnewactivity_Dialog_ActivityMET=(EditText)dialog.findViewById(R.id.EditText_More_Customizedactivity_Addnewactivity_Dialog_ActivityMET);
final Button Button_More_Customizedactivity_Addnewactivity_Dialog_OK=(Button)dialog.findViewById(R.id.Button_More_Customizedactivity_Addnewactivity_Dialog_OK);
final Button Button_More_Customizedactivity_Addnewactivity_Dialog_Cancel=(Button)dialog.findViewById(R.id.Button_More_Customizedactivity_Addnewactivity_Dialog_Cancel);
dialog.setTitle("Edit Activity by User");
EditText_Addnewactivity_Dialog_ActivityName.setText(ActivityNameBefore);
EditText_Addnewactivity_Dialog_ActivityMET.setText(ActivityMETBefore+"");
dialog.show();
Button_More_Customizedactivity_Addnewactivity_Dialog_OK.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
// Some codes here
});
Button_More_Customizedactivity_Addnewactivity_Dialog_Cancel.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
// TODO Auto-generated method stub
dialog.dismiss();
}
});
}
}
根据我的代码：
当我在自定义列表视图上按“编辑”时，代码运行 editNewActivityDialog() 方法并使用以下方法构建 Dialog：
最终对话框 dialog = new Dialog(mInflater.getContext());
（我想我应该把“mInflater.getContext()”改成别的东西，但我不知道。）
当我在自定义列表视图上按“删除”按钮时，代码运行 confirmDeleteCustomizedDialog() 方法并使用以下方法构建 AlertDialog：
AlertDialog alertDialog = new AlertDialog.Builder(mInflater.getContext()).create();
（我想我应该把“mInflater.getContext()”改成别的东西，但我不知道。）
非常感谢提前:)