android edittext详解

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scrollbars="vertical" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >

        <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:digits="1234-=+."
            android:text="限制输入1234-=+." />

        <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:phoneNumber="true"
            android:text="限制输入电话号码" />

        <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:password="true"
            android:text="限制输入密码" />

        <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:hint="input your content"
            android:textColorHint="#aaff00" />

        <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:enabled="false"
            android:hint="input your content" />

        <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:drawableTop="@drawable/a1"
            android:text="pic top" />

        <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:drawableBottom="@drawable/a2"
            android:text="pic bottom" />

        <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:drawableLeft="@drawable/a3"
            android:text="pic left" />

        <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:drawableRight="@drawable/a4"
            android:text="pic right" />
    </LinearLayout>

</ScrollView>