android 对话框 重复,如何在Android上重复使用AlertDialog for Yes / No？
我正在嘗試找到重用顯示自定義標題的Dialog的方法,然后將Yes / No click發送到已啟動Dialog的功能.
我有兩個按鈕,保存和解除,并且都調用是/否對話,一個顯示“你想保存”,另一個顯示“關閉更改？”.
我認為我的程序非常“臟”但我想它可以工作,但我的問題是“查看視圖”變量,我不知道如何將它從Activity傳遞給Dialog,所以我可以用它來回憶啟動Dialog的功能.
提前致謝,
HerniHdez
我活動的.java(片段)
public void open_HH_Fragment_YesNo(View view,String aux_title,String aux_function)
{
Bundle bundle=new Bundle();
bundle.putString("setMessage",aux_title);
bundle.putString("callingFunction",aux_function);
DialogFragment newFragment = new HH_Fragment_YesNo();
newFragment.setArguments(bundle);
newFragment.show(getSupportFragmentManager(),"HH_Fragment_YesNo");
}
public void SaveChanges(View view,String aux_YesNo)
{
if (aux_YesNo == "")
{
Toast.makeText(this,"Save changes?",Toast.LENGTH_SHORT).show();
open_HH_Fragment_YesNo(view,"SaveChanges");
}
else if (aux_YesNo == "Yes")
{
Toast.makeText(this,"Saving changes",Toast.LENGTH_SHORT).show();
}
else if (aux_YesNo == "No")
{
Toast.makeText(this,"Save Cancelled",Toast.LENGTH_SHORT).show();
}
}
public void DismissChanges(View view,"Dismiss changes?","DismissChanges");
}
else if (aux_YesNo == "Yes")
{
Toast.makeText(this,"Dismiss OK",Toast.LENGTH_SHORT).show();
Close(view);
}
else if (aux_YesNo == "No")
{
Toast.makeText(this,"Dismiss Cancelled",Toast.LENGTH_SHORT).show();
}
}
// The dialog fragment receives a reference to this Activity through the
// Fragment.onAttach() callback,which it uses to call the following methods
// defined by the HH_Fragment_YesNo.YesNoDialogListener interface
@Override
public void onDialogPositiveClick(DialogFragment dialog,View view,String aux_function)
{
// User touched the dialog's positive button
Toast.makeText(this,"User clicked on Yes",Toast.LENGTH_SHORT).show();
if (aux_function == "SaveChanges")
{
SaveChanges(view,"Yes");
}
else if (aux_function == "DismissChanges")
{
DismissChanges(view,"Yes");
}
}
@Override
public void onDialogNegativeClick(DialogFragment dialog,String aux_function)
{
Toast.makeText(this,"User clicked on NO","No");
}
else if (aux_function == "DismissChanges")
{
DismissChanges(view,"No");
}
}
我的對話的.java(完整)
public class HH_Fragment_YesNo extends DialogFragment
{
@Override
public Dialog onCreateDialog(Bundle savedInstanceState)
{
// Use the Builder class for convenient dialog construction
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
String setMessage = getArguments().getString("setMessage");
final String callingFunction = getArguments().getString("callingFuntion");
builder
.setMessage(setMessage) // R.string.dialog_fire_missiles
.setPositiveButton("Sí",new DialogInterface.OnClickListener() // R.string.fire
{
public void onClick(DialogInterface dialog,int id)
{
// Exit without saving
mListener.onDialogPositiveClick(HH_Fragment_YesNo.this,view,callingFunction);
}
})
.setNegativeButton("No",new DialogInterface.OnClickListener() // R.string.cancel
{
public void onClick(DialogInterface dialog,int id)
{
// User cancelled the dialog
mListener.onDialogNegativeClick(HH_Fragment_YesNo.this,callingFunction);
}
});
// Create the AlertDialog object and return it
return builder.create();
}
/* The activity that creates an instance of this dialog fragment must
* implement this interface in order to receive event callbacks.
* Each method passes the DialogFragment in case the host needs to query it. */
public interface YesNoDialogListener
{
public void onDialogPositiveClick(DialogFragment dialog,String aux_Function);
public void onDialogNegativeClick(DialogFragment dialog,String aux_Function);
}
// Use this instance of the interface to deliver action events
YesNoDialogListener mListener;
// Override the Fragment.onAttach() method to instantiate the NoticeDialogListener
@Override
public void onAttach(Activity activity)
{
super.onAttach(activity);
// Verify that the host activity implements the callback interface
try
{
// Instantiate the NoticeDialogListener so we can send events to the host
mListener = (YesNoDialogListener) activity;
}
catch (ClassCastException e)
{
// The activity doesn't implement the interface,throw exception
throw new ClassCastException(activity.toString() + " must implement NoticeDialogListener");
}
}
}
總結
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