用的EditText默认情况下，数字键盘，但允许字母字符 [英] EditText with number keypad by default, but allowing alphabetic characters

问题描述

我有一个EditText框，我想，当它被选定为数字小键盘，因为大多数时间将用户输入数字出现的默认键盘。不过，我想允许用户输入字母字符也是如此，如果他们需要。使用安卓inputType =号限制输入数字仅数字。我有什么选择呢？

I have an EditText box and I want the default keyboard that comes up when it is selected to be the numeric keypad, since most of the time users will be entering numbers. However, I do want to allow users to enter alphabetic characters too, if they need to. Using android:inputType="number" restricts input to numeric digits only. What options do I have?

推荐答案

我会建议一个更强大的解决方案：

I would suggest a more Robust solution:

present与选择输入类型的能力的用户：

Present the user with the ability to choose the input type:

的必需FIXES 的

NEEDED FIXES

- 更好的处理显示/隐藏输入选择按钮的

- 可能删除的建议，当输入类型为信的

下面是活动：

package mobi.sherif.numberstexttextview;

import android.os.Bundle;
import android.app.Activity;
import android.text.InputType;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import android.widget.EditText;

public class MainActivity extends Activity {

    EditText mEdit;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mEdit = (EditText) findViewById(R.id.input);
        mEdit.setOnFocusChangeListener(new OnFocusChangeListener() {

            @Override
            public void onFocusChange(View view, boolean focused) {
                findViewById(R.id.llmenu).setVisibility(focused?View.VISIBLE:View.GONE);
            }
        });
    }

    public void onNumbers(View v) {
        mEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
    }

    public void onLetters(View v) {
        mEdit.setInputType(InputType.TYPE_CLASS_TEXT);
    }

}

下面是活动的XML： activity_main.xml

Here is the activity's xml : activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ScrollView
        android:id="@+id/scrollview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_alignWithParentIfMissing="true"
        android:layout_above="@+id/llmenu" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content" >

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

                <requestFocus />
            </EditText>
        </LinearLayout>
    </ScrollView>

    <LinearLayout
        android:id="@+id/llmenu"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:background="#000000"
        android:padding="0dp" >

        <Button
            android:id="@+id/buttonnumbers"
            android:layout_width="0dp"
            android:onClick="onNumbers"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:text="Numbers" />

        <Button
            android:id="@+id/buttonletters"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:onClick="onLetters"
            android:text="Letters" />
    </LinearLayout>

</RelativeLayout>

这篇关于用的EditText默认情况下，数字键盘，但允许字母字符的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！