I'm working on a little personal todo list app and so far everything has been working quite well. There is one little quirk I'd like to figure out. Whenever I go to add a new item, I have a Dialog with an EditText view showing inside. When I select the EditText view, the keyboard comes up to enter text, as it should. In most applications, the default seems to be that the shift key is held for the first letter... although it does not do this for my view. There has to be a simple way to fix, but I've searched the reference repeatedly and cannot find it. I'm thinking there has to be an xml attribute for the reference loaded by the Adapter, but I can't find out what it is.


当前回答

如果你想在每个单词的首字母大写,然后使用android:inputType="textCapWords"

为了更好地理解

 <EditText
    android:id="@+id/edt_description"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:inputType="textCapWords"/>

如果你每个句子都用大写的单词,那就用它。 android:inputType=" textcapsentence "这一行在你的xml。我指的是在你的EditText中。

为了更好地理解

<EditText
    android:id="@+id/edt_description"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:inputType="textCapSentences"/>
    

其他回答

在你的布局XML文件中:

将android: inputType = " textCapSentences " 在您的EditText中,将每个句子的第一个单词的首字母作为大写 或者android:inputType="textCapWords"在你的EditText有第一个字母的每个单词作为资本

试试这个代码,它将大写所有单词的第一个字符。

-为EditText视图设置addTextChangedListener

edt_text.addTextChangedListener(观察者);

-添加文本观察者

TextWatcher watcher = new TextWatcher() {
    int mStart = 0;

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
        mStart = start + count;
    }

    @Override
    public void afterTextChanged(Editable s) {
        String input = s.toString();
        String capitalizedText;
        if (input.length() < 1)
            capitalizedText = input;
        else if (input.length() > 1 && input.contains(" ")) {
            String fstr = input.substring(0, input.lastIndexOf(" ") + 1);
            if (fstr.length() == input.length()) {
                capitalizedText = fstr;
            } else {
                String sstr = input.substring(input.lastIndexOf(" ") + 1);
                sstr = sstr.substring(0, 1).toUpperCase() + sstr.substring(1);
                capitalizedText = fstr + sstr;
            }
        } else
            capitalizedText = input.substring(0, 1).toUpperCase() + input.substring(1);

        if (!capitalizedText.equals(edt_text.getText().toString())) {
            edt_text.addTextChangedListener(new TextWatcher() {
                @Override
                public void beforeTextChanged(CharSequence s, int start, int count, int after) {

                }

                @Override
                public void onTextChanged(CharSequence s, int start, int before, int count) {

                }

                @Override
                public void afterTextChanged(Editable s) {
                    edt_text.setSelection(mStart);
                    edt_text.removeTextChangedListener(this);
                }
            });
            edt_text.setText(capitalizedText);
        }
    }
};

使用此代码仅第一个字母大写的EditText

MainActivity.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <EditText
        android:id="@+id/et"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:tag="true">
    </EditText>

</RelativeLayout>

MainActivity.java

EditText et = findViewById(R.id.et);
        et.addTextChangedListener(new TextWatcher() {
            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
            }

            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2)
            {
                if (et.getText().toString().length() == 1 && et.getTag().toString().equals("true"))
                {
                    et.setTag("false");
                    et.setText(et.getText().toString().toUpperCase());
                    et.setSelection(et.getText().toString().length());
                }
                if(et.getText().toString().length() == 0)
                {
                    et.setTag("true");
                }
            }

            public void afterTextChanged(Editable editable) {

            }
        });

对于EditText中的资本化,您可以选择以下两种输入类型:

android:inputType=“textCapSentences” android:inputType=“textCapWords”

textCapSentences 这将使每个句子中第一个单词的第一个字母成为大写字母。

textCapWords 这将使每个单词的第一个字母作为大写字母。

如果你想要两个属性都使用|符号

android:inputType="textCapSentences|textCapWords"

如果你想在每个单词的首字母大写,然后使用android:inputType="textCapWords"

为了更好地理解

 <EditText
    android:id="@+id/edt_description"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:inputType="textCapWords"/>

如果你每个句子都用大写的单词,那就用它。 android:inputType=" textcapsentence "这一行在你的xml。我指的是在你的EditText中。

为了更好地理解

<EditText
    android:id="@+id/edt_description"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:inputType="textCapSentences"/>