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我正在嘗試與微調工作。我還有其他意見。所有其他視圖都顯示並且工作正常，除了微調。執行後，微調器根本不可見。然而，它在設計模式下顯示，但不是在執行時顯示。微調不會顯示在運行應用程序
我的XML是如下：
<?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"
android:background="@drawable/background"
tools:context="com.example.kc.sample.HomePage">
<ScrollView
android:id="@+id/scrollView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center">
<android.support.design.widget.TextInputLayout
style="@style/fontStyle"
android:id="@+id/input_layout_registerName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="30dp">
<EditText
android:layout_width="match_parent"
android:layout_height="40dp"
android:inputType="textCapSentences"
android:textSize="15dp"
android:paddingStart="@dimen/activity_horizontal_margin"
android:textColor="#274A72"
android:id="@+id/editRegisterName"
android:hint="@string/Name"
android:singleLine="true"
android:background="@drawable/edit_text_border"
android:lines="1"
android:maxLength="64"/>
</android.support.design.widget.TextInputLayout>
<android.support.design.widget.TextInputLayout
style="@style/fontStyle"
android:id="@+id/input_layout_registerDOB"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:layout_width="match_parent"
android:layout_height="40dp"
android:inputType="textCapSentences"
android:textSize="15dp"
android:paddingStart="@dimen/activity_horizontal_margin"
android:focusableInTouchMode="false"
android:textColor="#274A72"
android:id="@+id/editRegisterDOB"
android:hint="@string/DOB"
android:singleLine="true"
android:background="@drawable/edit_text_border"
android:lines="1"
android:maxLength="64"/>
</android.support.design.widget.TextInputLayout>
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:stretchColumns="*"
android:shrinkColumns="*">
<TableRow>
<android.support.design.widget.TextInputLayout
style="@style/fontStyle"
android:id="@+id/input_layout_GenderMale"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1">
<RadioButton
android:layout_width="match_parent"
android:layout_height="40dp"
android:textSize="15dp"
android:paddingStart="@dimen/activity_horizontal_margin"
android:textColor="#274A72"
android:id="@+id/radioGenderMale"
android:text="@string/Male"
android:background="@drawable/edit_text_border"
android:onClick="checkMaleMethod"
/>
</android.support.design.widget.TextInputLayout>
<android.support.design.widget.TextInputLayout
style="@style/fontStyle"
android:id="@+id/input_layout_GenderFemale"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1">
<RadioButton
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_marginRight="10dp"
android:textSize="15dp"
android:paddingStart="@dimen/activity_horizontal_margin"
android:textColor="#274A72"
android:id="@+id/radioGenderFemale"
android:text="@string/Female"
android:background="@drawable/edit_text_border"
android:onClick="checkFemaleMethod"
/>
</android.support.design.widget.TextInputLayout>
</TableRow>
</TableLayout>
<android.support.design.widget.TextInputLayout
style="@style/fontStyle"
android:id="@+id/input_layout_registerEmail"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:layout_width="match_parent"
android:layout_height="40dp"
android:inputType="textCapSentences"
android:textSize="15dp"
android:paddingStart="@dimen/activity_horizontal_margin"
android:textColor="#274A72"
android:id="@+id/editRegisterEmail"
android:hint="@string/email"
android:singleLine="true"
android:background="@drawable/edit_text_border"
android:lines="1"
android:maxLength="64"/>
</android.support.design.widget.TextInputLayout>
<android.support.design.widget.TextInputLayout
style="@style/fontStyle"
android:id="@+id/input_layout_registerMobile"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:layout_width="match_parent"
android:inputType="number"
android:layout_height="40dp"
android:id="@+id/editRegisterPhone"
android:textSize="15dp"
android:paddingStart="@dimen/activity_horizontal_margin"
android:textColor="#274A72"
android:hint="@string/Phone"
android:singleLine="true"
android:background="@drawable/edit_text_border"
android:lines="1"
android:maxLength="10"/>
</android.support.design.widget.TextInputLayout>
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:stretchColumns="*"
android:shrinkColumns="*">
<TableRow>
<android.support.design.widget.TextInputLayout
style="@style/fontStyle"
android:id="@+id/input_layout_statusSingle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1">
<RadioButton
android:layout_width="match_parent"
android:layout_height="40dp"
android:textSize="15dp"
android:paddingStart="@dimen/activity_horizontal_margin"
android:textColor="#274A72"
android:id="@+id/radioStatusSingle"
android:text="@string/Single"
android:background="@drawable/edit_text_border"
android:onClick="checkStatusSingleMethod"
/>
</android.support.design.widget.TextInputLayout>
<android.support.design.widget.TextInputLayout
style="@style/fontStyle"
android:id="@+id/input_layout_statusMarried"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1">
<RadioButton
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_marginRight="10dp"
android:textSize="15dp"
android:paddingStart="@dimen/activity_horizontal_margin"
android:textColor="#274A72"
android:id="@+id/radioStatusMarried"
android:text="@string/Married"
android:background="@drawable/edit_text_border"
android:onClick="checkStatusMarriedMethod"
/>
</android.support.design.widget.TextInputLayout>
</TableRow>
</TableLayout>
<Spinner
android:id="@+id/spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:prompt="@string/spinner_title"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/txtErrorMessage"
android:textAlignment="center"
android:textSize="15dp"
android:textColor="#ff0000"/>
</LinearLayout>
</ScrollView>
</LinearLayout>
我相應的Java代碼如下：
public class HomePage extends AppCompatActivity implements View.OnClickListener, OnItemSelectedListener {
private EditText editName, editDateofBirth, editMail, editMobileNumber, editDate;
private RadioButton radioMale, radioFemale, radioStatusSingle, radioStatusMarried;
private Button btnPrevious, btnNext;
Dialog result;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home_page);
//Few other view declaration here
Spinner spinner = (Spinner) findViewById(R.id.spinner);
spinner.setOnItemSelectedListener(this);
List<String> list = new ArrayList<>();
list.add("One");
list.add("Two");
list.add("Three");
list.add("Four");
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, list); dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(dataAdapter);
}
@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
String item = adapterView.getItemAtPosition(i).toString();
Toast.makeText(adapterView.getContext(), "Selected: " + item, Toast.LENGTH_LONG).show();
}
@Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
如果寫成一個單獨的個人項目同樣微調代碼工作正常，如預期，但包括上述代碼片段中的相同內容在執行時不會顯示微調器。任何人都可以指導我如何使它工作？在此先感謝