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我有一个问题,我使用bundle将数据从片段发送到dialogfragment,但是当我单击片段布局中的按钮时会出现问题,它成功获取数据从片段,但在我的dialogfragment它得到空值,当我调试我发现我的对话框片段运行两次,以便为什么我得到空值。任何建议来解决这个问题,对不起我的英语,希望能理解我的问题。当从片段传递到对话框片段时,Android获取值null
这是我的onclick将数据传递给我的对话片段
Button[i].setBackgroundColor(0xFF00FF00);
Button[i].setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
TextView test = (TextView)getView().findViewById(R.id.testproductname);
test.setText(pName);
String testproductname = test.getText().toString();
Bundle args = new Bundle();
args.putString("key", testproductname);
FragmentDialog newFragment = new FragmentDialog();
newFragment.setArguments(args);
newFragment.show(getActivity().getSupportFragmentManager(), "TAG");
showTheDialog();
}
});
}
protected void showTheDialog() {
FragmentManager fm = getActivity().getSupportFragmentManager();
FragmentDialog overlay = new FragmentDialog();
overlay.show(fm, "FragmentDialog");
}
FragmentDialog
public class FragmentDialog extends DialogFragment {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Dialog dialog = super.onCreateDialog(savedInstanceState);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
//dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.YELLOW));
dialog.getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
return dialog;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle
savedInstanceState) {
View view = inflater.inflate(R.layout.prompt_quantity, container);
// tab slider
sectionsPagerAdapter = new SectionsPagerAdapter(getChildFragmentManager());
// Set up the ViewPager with the sections adapter.
viewPager = (ViewPager) view.findViewById(R.id.modifierpager);
viewPager.setAdapter(sectionsPagerAdapter);
Bundle mArgs = getArguments();
pName = mArgs.getString("key","asdasd");
final TextView tpn = (TextView)getView().findViewById(R.id.gtestproductname);
tpn.setText(pName);
}
'showTheDialog()'是什么?它似乎你已经在它之前调用'newFragment.show' ... – marmor
谢谢,我更新我的问题,showThDialog()是用来提示我的对话框片段 –
,如果你从'showTheDialog()'调用对话框片段它将再次显示空值,并且您正在调用以显示上一行'newFragment.show(getActivity()。getSupportFragmentManager(),“TAG”); //在这里你打电话来显示片段' 和'showTheDialog(); //你是否再次在这里显示片段? – Sony