根据Spinner检查空的EditText

时间：2015-07-06 14:57:34

标签： android android-edittext spinner

我有一个从0到10的Spinner。例如，当我们选择5时，我们得到第5个EditText。我想在验证按钮后检查第5个EditText是否为空。

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:maxLength="2"
        android:inputType="number"
        android:id="@+id/editAgeEnfants1"
        android:layout_below="@+id/ageEnfants"
        android:layout_alignParentRight="true"
        android:layout_alignParentLeft="true"
        android:background="#EBEBEB"
        android:padding="5dp"
        android:layout_marginBottom="5dp"
        android:hint="Premier enfant"/>

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:maxLength="2"
        android:inputType="number"
        android:id="@+id/editAgeEnfants2"
        android:layout_below="@+id/editAgeEnfants1"
        android:layout_alignParentRight="true"
        android:layout_alignParentLeft="true"
        android:background="#EBEBEB"
        android:padding="5dp"
        android:layout_marginBottom="5dp"
        android:hint="Deuxième enfant"/>

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:maxLength="2"
        android:inputType="number"
        android:id="@+id/editAgeEnfants3"
        android:layout_below="@+id/editAgeEnfants2"
        android:layout_alignParentRight="true"
        android:layout_alignParentLeft="true"
        android:background="#EBEBEB"
        android:padding="5dp"
        android:layout_marginBottom="5dp"
        android:hint="Troisième enfant"/>

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:maxLength="2"
        android:inputType="number"
        android:id="@+id/editAgeEnfants4"
        android:layout_below="@+id/editAgeEnfants3"
        android:layout_alignParentRight="true"
        android:layout_alignParentLeft="true"
        android:background="#EBEBEB"
        android:padding="5dp"
        android:layout_marginBottom="5dp"
        android:hint="Quatrième enfant"/>

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:maxLength="2"
        android:inputType="number"
        android:id="@+id/editAgeEnfants5"
        android:layout_below="@+id/editAgeEnfants4"
        android:layout_alignParentRight="true"
        android:layout_alignParentLeft="true"
        android:background="#EBEBEB"
        android:padding="5dp"
        android:layout_marginBottom="5dp"
        android:hint="Cinquième enfant"/>

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:maxLength="2"
        android:inputType="number"
        android:id="@+id/editAgeEnfants6"
        android:layout_below="@+id/editAgeEnfants5"
        android:layout_alignParentRight="true"
        android:layout_alignParentLeft="true"
        android:background="#EBEBEB"
        android:padding="5dp"
        android:layout_marginBottom="5dp"
        android:hint="Sixième enfant"/>

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:maxLength="2"
        android:inputType="number"
        android:id="@+id/editAgeEnfants7"
        android:layout_below="@+id/editAgeEnfants6"
        android:layout_alignParentRight="true"
        android:layout_alignParentLeft="true"
        android:background="#EBEBEB"
        android:padding="5dp"
        android:layout_marginBottom="5dp"
        android:hint="Septième enfant"/>

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:maxLength="2"
        android:inputType="number"
        android:id="@+id/editAgeEnfants8"
        android:layout_below="@+id/editAgeEnfants7"
        android:layout_alignParentRight="true"
        android:layout_alignParentLeft="true"
        android:background="#EBEBEB"
        android:padding="5dp"
        android:layout_marginBottom="5dp"
        android:hint="Huitième enfant"/>

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:maxLength="2"
        android:inputType="number"
        android:id="@+id/editAgeEnfants9"
        android:layout_below="@+id/editAgeEnfants8"
        android:layout_alignParentRight="true"
        android:layout_alignParentLeft="true"
        android:background="#EBEBEB"
        android:padding="5dp"
        android:layout_marginBottom="5dp"
        android:hint="Neuvième enfant"/>

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:maxLength="2"
        android:inputType="number"
        android:id="@+id/editAgeEnfants10"
        android:layout_below="@+id/editAgeEnfants9"
        android:layout_alignParentRight="true"
        android:layout_alignParentLeft="true"
        android:background="#EBEBEB"
        android:padding="5dp"
        android:layout_marginBottom="5dp"
        android:hint="Dixième enfant"/>

我设置了明显的消失：

editAgeEnfants1.setVisibility(View.GONE);
editAgeEnfants2.setVisibility(View.GONE);
editAgeEnfants3.setVisibility(View.GONE);
editAgeEnfants4.setVisibility(View.GONE);
editAgeEnfants5.setVisibility(View.GONE);
editAgeEnfants6.setVisibility(View.GONE);
editAgeEnfants7.setVisibility(View.GONE);
editAgeEnfants8.setVisibility(View.GONE);
editAgeEnfants9.setVisibility(View.GONE);
editAgeEnfants10.setVisibility(View.GONE);

微调器：

    <Spinner
        android:id="@+id/spinnerEnfantsCharge"
        style="@style/spinner_style"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/enfantsCharge"
        android:layout_marginBottom="10dp"
        android:layout_marginTop="10dp"
        android:entries="@array/enfantsCharge"
        android:paddingBottom="10dp"
        android:paddingTop="10dp" />

的strings.xml 

<string-array name="enfantsCharge">
    <item>0</item>
    <item>1</item>
    <item>2</item>
    <item>3</item>
    <item>4</item>
    <item>5</item>
    <item>6</item>
    <item>7</item>
    <item>8</item>
    <item>9</item>
    <item>10</item>
</string-array>

我如何显示EditText：

spinnerEnfantsCharge.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
        if (position == 1) {
            ageEnfants.setVisibility(View.VISIBLE);
            editAgeEnfants1.setVisibility(View.VISIBLE);
            editAgeEnfants2.setVisibility(View.GONE);
            editAgeEnfants2.setText("");
            editAgeEnfants3.setVisibility(View.GONE);
            editAgeEnfants3.setText("");
            editAgeEnfants4.setVisibility(View.GONE);
            editAgeEnfants4.setText("");
            editAgeEnfants5.setVisibility(View.GONE);
            editAgeEnfants5.setText("");
            editAgeEnfants6.setVisibility(View.GONE);
            editAgeEnfants6.setText("");
            editAgeEnfants7.setVisibility(View.GONE);
            editAgeEnfants7.setText("");
            editAgeEnfants8.setVisibility(View.GONE);
            editAgeEnfants8.setText("");
            editAgeEnfants9.setVisibility(View.GONE);
            editAgeEnfants9.setText("");
            editAgeEnfants10.setVisibility(View.GONE);
            editAgeEnfants10.setText("");
        } ... else if (position == 10) {
            ageEnfants.setVisibility(View.VISIBLE);
            editAgeEnfants1.setVisibility(View.VISIBLE);
            editAgeEnfants2.setVisibility(View.VISIBLE);
            editAgeEnfants3.setVisibility(View.VISIBLE);
            editAgeEnfants4.setVisibility(View.VISIBLE);
            editAgeEnfants5.setVisibility(View.VISIBLE);
            editAgeEnfants6.setVisibility(View.VISIBLE);
            editAgeEnfants7.setVisibility(View.VISIBLE);
            editAgeEnfants8.setVisibility(View.VISIBLE);
            editAgeEnfants9.setVisibility(View.VISIBLE);
            editAgeEnfants10.setVisibility(View.VISIBLE);
        } else {
            ageEnfants.setVisibility(View.GONE);
            editAgeEnfants1.setVisibility(View.GONE);
            editAgeEnfants1.setText("");
            editAgeEnfants2.setVisibility(View.GONE);
            editAgeEnfants2.setText("");
            editAgeEnfants3.setVisibility(View.GONE);
            editAgeEnfants3.setText("");
            editAgeEnfants4.setVisibility(View.GONE);
            editAgeEnfants4.setText("");
            editAgeEnfants5.setVisibility(View.GONE);
            editAgeEnfants5.setText("");
            editAgeEnfants6.setVisibility(View.GONE);
            editAgeEnfants6.setText("");
            editAgeEnfants7.setVisibility(View.GONE);
            editAgeEnfants7.setText("");
            editAgeEnfants8.setVisibility(View.GONE);
            editAgeEnfants8.setText("");
            editAgeEnfants9.setVisibility(View.GONE);
            editAgeEnfants9.setText("");
            editAgeEnfants10.setVisibility(View.GONE);
            editAgeEnfants10.setText("");
        }
    }

    @Override
    public void onNothingSelected(AdapterView<?> parentView) {
        ageEnfants.setVisibility(View.GONE);
        editAgeEnfants1.setVisibility(View.GONE);
        editAgeEnfants1.setText("");
        editAgeEnfants2.setVisibility(View.GONE);
        editAgeEnfants2.setText("");
        editAgeEnfants3.setVisibility(View.GONE);
        editAgeEnfants3.setText("");
        editAgeEnfants4.setVisibility(View.GONE);
        editAgeEnfants4.setText("");
        editAgeEnfants5.setVisibility(View.GONE);
        editAgeEnfants5.setText("");
        editAgeEnfants6.setVisibility(View.GONE);
        editAgeEnfants6.setText("");
        editAgeEnfants7.setVisibility(View.GONE);
        editAgeEnfants7.setText("");
        editAgeEnfants8.setVisibility(View.GONE);
        editAgeEnfants8.setText("");
        editAgeEnfants9.setVisibility(View.GONE);
        editAgeEnfants9.setText("");
        editAgeEnfants10.setVisibility(View.GONE);
        editAgeEnfants10.setText("");
    }
});

在我的验证按钮上，我做了：

 else if ((spinnerEnfantsCharge.getSelectedItemPosition() == 1 && editAgeEnfants1.getText().length() == 0) || (spinnerEnfantsCharge.getSelectedItemPosition() == 1 && editAgeEnfants1.getText().length() == 0)) {
                            ageEnfants.requestFocus();
                            ageEnfants.setError("Veuillez entrer l'âge de vos enfants.");

但是如果检查所有条件，代码会很长，我想知道是否有更简单的方法来检查空的EditText？

解

if ((editAgeEnfants1.getVisibility() == View.VISIBLE && editAgeEnfants1.getText().length() == 0) || (editAgeEnfants2.getVisibility() == View.VISIBLE && editAgeEnfants2.getText().length() == 0) || (editAgeEnfants3.getVisibility() == View.VISIBLE && editAgeEnfants3.getText().length() == 0) || (editAgeEnfants4.getVisibility() == View.VISIBLE && editAgeEnfants4.getText().length() == 0) || (editAgeEnfants5.getVisibility() == View.VISIBLE && editAgeEnfants5.getText().length() == 0) || (editAgeEnfants6.getVisibility() == View.VISIBLE && editAgeEnfants6.getText().length() == 0) || (editAgeEnfants7.getVisibility() == View.VISIBLE && editAgeEnfants7.getText().length() == 0) || (editAgeEnfants8.getVisibility() == View.VISIBLE && editAgeEnfants8.getText().length() == 0) || (editAgeEnfants9.getVisibility() == View.VISIBLE && editAgeEnfants9.getText().length() == 0) || (editAgeEnfants10.getVisibility() == View.VISIBLE && editAgeEnfants10.getText().length() == 0)) {...}

3 个答案:

答案 0 :(得分：0)

您可以使用

进行检查 
editTextName.getText().toString().equals("")

答案 1 :(得分：0)

你可以用以下方式检查：

  

TextUtils.isEmpty（mEditText.getText（）。toString（））

注意：为什么不使用带适配器的EditText列表？

您将拥有一个包含X EditText的ArrayList（根据您的微调器编号）并创建一个＆＃34;验证＆＃34;解析所有arrayList的methode，检查EditText是否为空。

答案 2 :(得分：0)

您可以将其用作

if((mEditText.getText().toString()).equals("")){    

}else{    

}
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