Android Design Support Library (2)-Use of textinputlayout

Original articles, reproduced please specify http://blog.csdn.net/leejizhou/article/details/50494634

This article describes the use of Textinputlayout in the Android Design support library, assuming that you do not yet know how to use this Design library please refer to http://blog.csdn.net/ Leejizhou/article/details/50479934,textinputlayout makes your edittext feel more material design. The EditText can be conveniently moved to the top of the message and can be easily prompted by error messages.

Don't say much nonsense. See effect:)

Control definition <android. Support. Design. Widgets. TextinputlayoutAndroid:id="@+id/tl_password"Android:layout_width="Match_parent"android:layout_height="Wrap_content"android:layout_margin="8DP"> <edittext android:id="@+id/password"Android:layout_width="Match_parent"android:layout_height="Wrap_content"Android:inputtype="Textemailaddress"Android:hint="Password"></EditText> </android. Support. Design. Widgets. Textinputlayout>

Textinputlayout is a parent container control. Wrapped EditText, there is no special attribute, use very easy, remember it must be used with the edittext.

Regular usage of textinputlayout

tl_password.setHint("Username"//EditText获得焦点后在上面显示的文字tl_password.setErrorEnabled(true//开启错误提醒tl_password.setError("密码不能为空！"//错误提醒的文字tl_password.setErrorEnabled(false//关闭错误提醒

Specific source code for the demo effect gif

Layout

<?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"  Tools:context="com.leejz.textinputlayout.MainActivity">  <android.support.design.widget.textinputlayout  android:id  = "@+id/tl_username"  android:layout_width  =" match_parent " android:layout_height  =" wrap_content " android:layout_margin  =" 8DP ";  <EditText android:id= "@+id/username"android:layout_width="Match_ Parent "android:layout_height="wrap_content "android:hint=" Username " > </EditText> </android.support.design.widget.TextInputLayout> <android.support.design.widget.textinputlayout  android:id  = "@+id/tl_password"  android:layout_width  =" match_parent " android:layout_height  =" wrap_content " android:layout_margin  =" 8DP ";  <EditText android:id= "@+id/password"android:layout_width="Match_ Parent "android:layout_height="wrap_content "android:hint=" Password " > </EditText> </android.support.design.widget.TextInputLayout> <button  android:layout_ Width  = "match_parent"  android:layout_height< /span>= "wrap_content"  android:layout_margin  = "18DP"  android:text  =  "click"  android:id  = "@+id/button" />  <TextViewandroid:layout_width="Wrap_content"android:layout_height= "Wrap_content" android:layout_gravity="center"android:text="blog:http://blog.csdn.net/ Leejizhou " /> </linearlayout>

Activity

ImportAndroid.support.design.widget.TextInputLayout;Importandroid.support.v7.app.AppCompatActivity;ImportAndroid.os.Bundle;ImportAndroid.text.TextUtils;ImportAndroid.view.View;ImportAndroid.widget.EditText; Public  class mainactivity extends appcompatactivity {    PrivateEditText username;PrivateEditText password;    Textinputlayout Tl_username; Textinputlayout Tl_password;@Override    protected void onCreate(Bundle savedinstancestate) {Super. OnCreate (Savedinstancestate);        Setcontentview (R.layout.activity_main);        Tl_username= (textinputlayout) Findviewbyid (r.id.tl_username); Tl_username.sethint ("Username");        Tl_password= (textinputlayout) Findviewbyid (R.id.tl_password); Tl_password.sethint ("Password");//Two ways to get EditText objects       //Username= (EditText) Findviewbyid (r.id.username);       //password= (EditText) Findviewbyid (R.id.password);Username=tl_username.getedittext (); Password=tl_password.getedittext ();//button ClickFindviewbyid (R.id.button). Setonclicklistener (NewView.onclicklistener () {@Override             Public void OnClick(View v) {if(Textutils.isempty (Password.gettext (). toString ())) {tl_password.seterrorenabled (true); Tl_password.seterror ("The password cannot be empty. "); }Else{tl_password.seterrorenabled (false);    }            }        }); }}

Ok, there are questions about the place can be in the comments below, thank you.

Android Design Support Library (2)-Use of textinputlayout