android material design之简单控件（八）

来源：互联网发布：js获取焦点input边框编辑：程序博客网时间：2024/05/22 10:46

我的项目源码托管地址：点击打开我的项目源码地址

这算是md风格这一段时间的最后一篇博客吧，以后也可能会更新，看几个图

先来看edittext的activity

package com.fanyafeng.materialdesign.activity;import android.os.Bundle;import android.support.design.widget.FloatingActionButton;import android.support.design.widget.Snackbar;import android.support.design.widget.TextInputLayout;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.Toolbar;import android.text.Editable;import android.text.TextWatcher;import android.view.View;import android.widget.EditText;import com.fanyafeng.materialdesign.BaseActivity;import com.fanyafeng.materialdesign.R;public class EditTextFloatingLabelActivity extends BaseActivity {    private TextInputLayout layoutEtEmail;    private EditText etEmail;    private TextInputLayout layoutEtPwd;    private EditText etPwd;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_edit_text_floating_label);        title = "测试floatinglabel";        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);        fab.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)                        .setAction("Action", null).show();            }        });        initView();        initData();    }    private void initView() {        layoutEtEmail = (TextInputLayout) findViewById(R.id.layoutEtEmail);        etEmail = (EditText) findViewById(R.id.etEmail);        layoutEtPwd = (TextInputLayout) findViewById(R.id.layoutEtPwd);        etPwd = (EditText) findViewById(R.id.etPwd);    }    private void initData() {        etEmail.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) {                String text = etEmail.getText().toString().trim();                if (!text.equals("") && text != null) {                    layoutEtEmail.setErrorEnabled(false);                    layoutEtEmail.setError(null);                } else {                    layoutEtEmail.setErrorEnabled(true);                    layoutEtEmail.setError("格式错误");                }            }            @Override            public void afterTextChanged(Editable s) {            }        });//        layoutEtPwd.setErrorEnabled(true);//        layoutEtPwd.setError("密码为数字");    }}

两个xml

<?xml version="1.0" encoding="utf-8"?><android.support.design.widget.CoordinatorLayout 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:fitsSystemWindows="true"    tools:context="com.fanyafeng.materialdesign.activity.EditTextFloatingLabelActivity">    <android.support.design.widget.AppBarLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:theme="@style/AppTheme.AppBarOverlay">        <android.support.v7.widget.Toolbar            android:id="@+id/toolbar"            android:layout_width="match_parent"            android:layout_height="?attr/actionBarSize"            android:background="?attr/colorPrimary"            app:popupTheme="@style/AppTheme.PopupOverlay" />    </android.support.design.widget.AppBarLayout>    <include layout="@layout/content_edit_text_floating_label" />    <android.support.design.widget.FloatingActionButton        android:id="@+id/fab"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="bottom|end"        android:layout_margin="@dimen/fab_margin"        android:src="@android:drawable/ic_dialog_email" /></android.support.design.widget.CoordinatorLayout>

<?xml version="1.0" encoding="utf-8"?><android.support.v4.widget.NestedScrollView 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:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    app:layout_behavior="@string/appbar_scrolling_view_behavior"    tools:context="com.fanyafeng.materialdesign.activity.EditTextFloatingLabelActivity"    tools:showIn="@layout/activity_edit_text_floating_label">    <LinearLayout        android:layout_width="match_parent"        android:layout_height="match_parent"        android:orientation="vertical">        <android.support.design.widget.TextInputLayout            android:id="@+id/layoutEtEmail"            app:theme="@style/AppTheme"            android:layout_width="match_parent"            android:layout_height="wrap_content">            <EditText                android:id="@+id/etEmail"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:hint="请输入邮箱"                android:inputType="textEmailAddress" />        </android.support.design.widget.TextInputLayout>        <android.support.design.widget.TextInputLayout            android:id="@+id/layoutEtPwd"            android:layout_width="match_parent"            android:layout_height="wrap_content">            <EditText                android:id="@+id/etPwd"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:hint="请输入密码"                android:inputType="numberPassword" />        </android.support.design.widget.TextInputLayout>    </LinearLayout></android.support.v4.widget.NestedScrollView>

另个的xml，其他的代码就不贴了

<?xml version="1.0" encoding="utf-8"?><android.support.v4.widget.NestedScrollView 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:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    app:layout_behavior="@string/appbar_scrolling_view_behavior"    tools:context="com.fanyafeng.materialdesign.activity.V7WidgetActivity"    tools:showIn="@layout/activity_v7_widget">    <LinearLayout        android:layout_width="match_parent"        android:layout_height="match_parent"        android:orientation="vertical">        <android.support.design.widget.TextInputEditText            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:hint="请输入账号" />        <android.support.design.widget.TextInputEditText            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:hint="请输入密码" />        <android.support.design.widget.VisibilityAwareImageButton            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:src="@drawable/background" />        <android.support.v7.widget.AppCompatSpinner            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:entries="@array/spinnername" />        <android.support.v7.widget.SearchView            android:layout_width="match_parent"            android:layout_height="56dp" />    </LinearLayout></android.support.v4.widget.NestedScrollView>

写给自己：

进步处便思退步，庶免触藩之祸；

著手时先图放手，才脱骑虎之危。

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