使用TextInputLayout分分钟构造一个酷炫登录框架

转载请注明出处：http://blog.csdn.net/liu1252247624/article/details/51580271

Google在2015的IO大会上，给我们带来了更加详细的Material Design设计规范，同时，也给我们带来了全新的Android Design Support Library，Android
Design Support Library的兼容性更广，直接可以向下兼容到Android 2.2

下面我们用TextInputLayout构造一个酷炫的登录框架

先上效果图：



要使用Design Support Library现在gradle中加入

compile 'com.android.support:design:23.4.0'

登录页面的布局：

<?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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.lg.logindemo.MainActivity">

<TextView
android:layout_width="match_parent"
android:layout_height="200dp"
android:gravity="center"
android:text="Welcome"
android:textColor="@color/colorPrimary"
android:textSize="30dp" />

<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp">

<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Username"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:singleLine="true" />
</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp">

<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Password"
android:inputType="textPassword"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:singleLine="true" />
</android.support.design.widget.TextInputLayout>

<android.support.v7.widget.AppCompatButton
android:id="@+id/login"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:background="@color/colorPrimary"
android:onClick="onLogin"
android:text="LOGIN"
android:textColor="@android:color/white"
android:textSize="20sp"
android:textStyle="bold" />

<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center"
android:onClick="register"
android:text="No account yet?Create one"
android:textSize="16sp"
android:textStyle="bold" />
</LinearLayout>

TextInputLayout

继承于

LinearLayout也是一个布局，要配合它的子控件来显示出想要的效果，这里谷歌把它专门设计用来包裹
EditText
(或者[code]EditText

的子类)，然后当用户进行输入动作的时候我们设置的

android:hint

提示就会以动画的形式运动到左上角[/code]

public class MainActivity extends AppCompatActivity {
private Button button;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setTitle("Login");
button=(Button)findViewById(R.id.login);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this,"Login Successful",Toast.LENGTH_SHORT).show();
}
});
}

/*注册*/
public void register(View view){
startActivity(new Intent(this,RegisterAcitvity.class));
}
}

很简单，只是为了画个框架，可以根据需求自己完善

下面是注册页面的布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.lg.logindemo.RegisterAcitvity">

<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:counterEnabled="true"
app:counterMaxLength="6"
app:counterOverflowTextAppearance="@style/ErrorStyle"
android:layout_marginTop="10dp"
>

<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Username"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:singleLine="true" />
</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:counterEnabled="true"
app:counterMaxLength="12"
app:counterOverflowTextAppearance="@style/ErrorStyle"
android:layout_marginTop="10dp">

<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Password"
android:inputType="textPassword"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:singleLine="true" />
</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp">

<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Email"
android:inputType="textEmailAddress"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:singleLine="true" />
</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"

a711
android:layout_marginTop="10dp">

<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Phone"
android:inputType="phone"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:singleLine="true" />
</android.support.design.widget.TextInputLayout>

<RadioGroup
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:orientation="horizontal">

<android.support.v7.widget.AppCompatRadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Male"
android:textSize="16sp" />

<android.support.v7.widget.AppCompatRadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Female"
android:textSize="16sp" />
</RadioGroup>

<android.support.v7.widget.AppCompatButton
android:id="@+id/register"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:background="@color/colorPrimary"
android:text="CREATE ACCOUNT"
android:textColor="@android:color/white"
android:textSize="20sp" />
</LinearLayout>

android:singleLine="true"属性

设置单行显示
[/code]

设置

app:counterEnabled="true" 打开Edittext右下角字数统计，app:counterMaxLength="6"设置它的长度

但要谨记，使用这个功能的时候必须加上 app:counterOverflowTextAppearance属性，不然程序很报错

自定义ErrorStyle样式:

<style name="ErrorStyle">
<item name="android:textColor">@color/colorAccent</item>
</style>

当然，如果想要修改Edittext框的选中颜色可以修改AppTheme中的colorAccent属性

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorPrimary</item>
</style>

源码地址：http://download.csdn.net/detail/liu1252247624/9540405