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我是一名android.app中的新手程序員。我試圖開發一個簡單的親子鑑定血液測試。邏輯是這樣的。我有三個旋轉器和血型A，B，AB和O將被列入微調器。用戶必須從A，B，AB或O中爲孩子，母親和父親選擇血型，然後單擊提交按鈕。按鈕將進行一些匹配併產生一個字符串結果。我試過了我在互聯網上找到的幾種方法。但仍然無法使用按鈕點擊功能。 這是我的代碼.Plz糾正了我的錯誤。謝謝。在android片段視圖中使用微調和按鈕單擊
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:text="TextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/btn_paternity"
android:layout_centerHorizontal="true"
android:gravity="center_horizontal"
android:layout_marginTop="52dp"
android:id="@+id/paternity_ans" />
<TextView
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:id="@+id/textView6"
android:text="Father"
android:textAppearance="@style/TextAppearance.AppCompat.Medium"
android:layout_width="100dp"
android:layout_above="@+id/childblds"
android:layout_centerHorizontal="true" />
<TextView
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:layout_marginTop="53dp"
android:id="@+id/textView5"
android:text="Child "
android:textAppearance="@style/TextAppearance.AppCompat.Medium"
android:layout_width="100dp"
android:layout_marginRight="15dp"
android:layout_marginEnd="15dp"
android:layout_alignParentTop="true"
android:layout_toLeftOf="@+id/btn_paternity"
android:layout_toStartOf="@+id/btn_paternity" />
<Spinner
android:layout_width="100dp"
android:layout_height="wrap_content"
android:spinnerMode="dialog"
android:id="@+id/dadblds"
android:dropDownWidth="match_parent"
android:layout_toLeftOf="@+id/textView4"
android:layout_toStartOf="@+id/textView4"
android:layout_alignBottom="@+id/childblds"
android:layout_alignTop="@+id/childblds" />
<Spinner
android:layout_width="100dp"
android:layout_height="wrap_content"
android:id="@+id/childblds"
android:spinnerMode="dialog"
android:dropDownWidth="match_parent"
android:layout_marginTop="13dp"
android:layout_below="@+id/textView5"
android:layout_alignLeft="@+id/textView5"
android:layout_alignStart="@+id/textView5" />
<Spinner
android:layout_width="100dp"
android:layout_height="wrap_content"
android:id="@+id/momblds"
android:spinnerMode="dialog"
android:entries="@array/paternitybldtype"
android:dropDownWidth="match_parent"
android:layout_alignTop="@+id/dadblds"
android:layout_alignLeft="@+id/textView4"
android:layout_alignStart="@+id/textView4" />
<Button
android:text="Button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/btn_paternity"
android:layout_below="@+id/dadblds"
android:layout_centerHorizontal="true"
android:layout_marginTop="35dp" />
<TextView
android:layout_height="wrap_content"
android:id="@+id/textView4"
android:gravity="center_horizontal"
android:text="Mother"
android:textAppearance="@style/TextAppearance.AppCompat.Medium"
android:layout_width="100dp"
android:layout_marginLeft="9dp"
android:layout_marginStart="9dp"
android:layout_above="@+id/childblds"
android:layout_toRightOf="@+id/textView6"
android:layout_toEndOf="@+id/textView6" />
</RelativeLayout>
</LinearLayout>
片段代碼：
public class Paternitytest extends Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.paternitytestlo, container, false);
final Button setItem = (Button) view.findViewById(R.id.btn_paternity);
final TextView txt1 = (TextView) view.findViewById(R.id.paternity_ans);
setItem.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//Some if else statement will be applied here by using String c, f and m
}
});
return view;
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
Spinner childspinner = (Spinner) view.findViewById(R.id.childblds);
Spinner dadspinner = (Spinner) view.findViewById(R.id.dadblds);
Spinner momspinner = (Spinner) view.findViewById(R.id.momblds);
// Spinner Drop down elements
String[] categories = {"A", "B", "O", "AB",};
// Creating adapter for spinner
ArrayAdapter adapter = new ArrayAdapter(
getActivity().getApplicationContext(), android.R.layout.simple_list_item_1, categories);
// Drop down layout style - list view with radio button
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
childspinner.setAdapter(adapter);
dadspinner.setAdapter(adapter);
momspinner.setAdapter(adapter);
// Spinner click listener
childspinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String c = parent.getItemAtPosition(position).toString();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
dadspinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
String f = parent.getItemAtPosition(position).toString();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
momspinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
String m = parent.getItemAtPosition(position).toString();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
}
}
你說'不能使用按鈕點擊功能'是什麼意思？ –
您是否想通過單擊按鈕從微調器中獲取選定的文本？ – sam
是的。我想從單擊按鈕上的微調器中獲取選定的文本。 我無法調用按鈕click內的字符串值。所以，我想知道使用它的方法。 –