我有一个带有2个标签的标签式布局。每个选项卡都可以以双精度的形式收集一些数据,例如52.363。当在任何一个选项卡中按下按钮时,它们会打开一个新活动,显示在上一个选项卡中输入的数字。但是,当我按下提交按钮时,不会显示值。关于为什么的任何想法?
片段标签代码(两个标签现在都是相同的,但也省略了不言自明的部分):
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view;
view = inflater.inflate(R.layout.advfrag_layout, container, false);
return view;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
inSnow = (EditText) getView().findViewById(R.id.inchesSnow);
calc = (Button) getView().findViewById(R.id.button);
results = (TextView) getView().findViewById(R.id.resultView);
calc.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try{
inchSnow = Double.parseDouble(inSnow.getText().toString());
}catch (NumberFormatException ex){
results.setText("Field Blank!");
}
Intent intent = new Intent(getActivity().getBaseContext(), ResultPost.class);
intent.putExtra("inchSnow", inchSnow);
getActivity().startActivity(intent);
}
});
}
将数据发送到的活动,ResultPost.Class(同样,只是必不可少的部分):
public class ResultPost extends ActionBarActivity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_result_post);
AdvancedFragment advancedFragment= new AdvancedFragment();
Intent intent = getIntent();
double inchesn = intent.getDoubleExtra("inchSnow", 0);
}
}
ResultPost.Class继续更改textview以显示此数据,但textview的值保持为“0”,这是默认值,即使我给它一个不同的值,如6。
答案 0 :(得分:0)
试试这样:
public class ResultPost extends ActionBarActivity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_result_post);
AdvancedFragment advancedFragment= new AdvancedFragment();
Intent intent = getIntent();
double inchesn = intent.getDoubleExtra("inchSnow",0.0);
}
}