android UI简单美化
Selector(选择器)
activity_main.xml
<!-- background指定控件背景使用那种选择器 --> <EditText android:id="@+id/ed2" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@drawable/etext_seleector" />
etxt_selector.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android" > <!-- 当焦点该控件存在焦点时触发 其中con_watermarkvideo_porogressbar_played是图片名字--> <item android:state_focused="true" android:drawable="@drawable/con_watermarkvideo_porogressbar_played"></item> <item android:drawable="@drawable/con_watermarkvideo_porogressbar_notplay"></item> </selector>
给每个ActoinBar设置点击之后的样子:
actionBar=getActionBar(); //设置导航模式 actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); //添加导航项 并且为每一个导航设置选择器 Tab tab=actionBar.newTab().setIcon(R.drawable.tab1_selector).setTabListener(MainActivity.this); //添加导航项 actionBar.addTab(tab); tab=actionBar.newTab().setIcon(R.drawable.tab2_selector).setTabListener(MainActivity.this); actionBar.addTab(tab);
shape(图形)
Selector只能设置选中状态和非选中状态时候的样式(类似于if else),而shape的内容就比较丰富了,先看一下效果图。
Activity_main.xml
<EditText android:id="@+id/etxt" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/etxt_shape" />etxt_shape.xml
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" > <!-- 角的弧度 --> <corners android:radius="5dp" ></corners> <!-- 边框线 --> <stroke android:width="2px" android:color="#0000ff"></stroke> <!-- 同于控件的padding --> <padding android:left="10dp" android:top="10dp"></padding> <!-- 填充 --> <solid android:color="#00ff00"></solid> <!-- 大小 --> <size android:width="200dp" android:height="20dp"/> <!-- 渐变色 --> <gradient android:startColor="#ff0000" android:centerColor="#00ff00" android:endColor="#0000ff"></gradient> </shape>
android:shape="line"
同样设置EditText的选择器,
<EditText android:id="@+id/etxt1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/etxt_selector"/>
<selector xmlns:android="http://schemas.android.com/apk/res/android" > <item android:state_focused="true" android:drawable="@drawable/shape_f"></item> <item android:drawable="@drawable/shape_nf"></item> </selector>
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" > <!-- 角的弧度 --> <corners android:radius="5dp"></corners> <!-- 边框 --> <stroke android:width="2px" android:color="#0000ff"></stroke> <!-- 框框的大小 --> <size android:width="200dp" android:height="40dp"></size> <padding android:left="5dp" android:top="5dp" android:right="5dp" android:bottom="5dp"></padding> </shape>
DrawerLayout布局的使用:
QQ右侧滑动会有一个新页面占据大部分屏幕,这个就是DrawerLayout(抽屉)布局,效果图:
直接上代码:
MainActivity.java
package com.example.drawlayout; import android.app.ActionBar; import android.app.ActionBar.Tab; import android.app.ActionBar.TabListener; import android.app.Activity; import android.app.FragmentTransaction; import android.os.Bundle; import android.support.v4.widget.DrawerLayout; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; public class MainActivity extends Activity implements TabListener{ ImageView img; DrawerLayout dl; LinearLayout left; ListView listview; ActionBar actionBar; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); actionBar=getActionBar(); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); Tab tab = actionBar.newTab().setText("导航1").setTabListener(this); actionBar.addTab(tab); tab = actionBar.newTab().setText("导航2").setTabListener(this); actionBar.addTab(tab); dl = (DrawerLayout) findViewById(R.id.dl); left=(LinearLayout) findViewById(R.id.left); listview = (ListView) findViewById(R.id.listview); listview.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,new String[]{"选项1","选项2","选项3"})); listview.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { dl.closeDrawer(left); } }); } @Override public void onTabSelected(Tab tab, FragmentTransaction ft) { // TODO Auto-generated method stub } @Override public void onTabUnselected(Tab tab, FragmentTransaction ft) { // TODO Auto-generated method stub } @Override public void onTabReselected(Tab tab, FragmentTransaction ft) { // TODO Auto-generated method stub } }activivy_main.xml
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/dl" android:layout_width="match_parent" android:layout_height="match_parent" > <LinearLayout android:id="@+id/context" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <ImageView android:id="@+id/img" android:layout_width="match_parent" android:layout_height="match_parent" android:src="@drawable/ic_launcher" /> </LinearLayout> <LinearLayout android:id="@+id/left" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:layout_gravity="left" android:background="#0000FF"> <ListView android:id="@+id/listview" android:layout_width="wrap_content" android:layout_height="wrap_content" > </ListView> </LinearLayout> </android.support.v4.widget.DrawerLayout>
action
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" > <LinearLayout android:id="@+id/content" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <RadioGroup android:id="@+id/fenzu" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <RadioButton android:id="@+id/dao1" style="@style/radio" android:text="导航1" /> <RadioButton style="@style/radio" android:id="@+id/dao2" android:text="导航2" /> <RadioButton android:id="@+id/dao3" style="@style/radio" android:layout_height="wrap_content" android:text="导航3" /> </RadioGroup> <!-- 文本下面的那条线 --> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <TextView android:id="@+id/t1" style="@style/textview" android:background="#00FF00" /> <TextView android:id="@+id/t2" style="@style/textview" android:visibility="invisible" /> <TextView android:id="@+id/t3" style="@style/textview" android:visibility="invisible" /> </LinearLayout> </LinearLayout> <LinearLayout android:id="@+id/left" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="left" android:background="#00FF00" android:orientation="vertical" > <Button android:id="@+id/btn" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="关闭菜单" /> </LinearLayout> </android.support.v4.widget.DrawerLayout>
MainActivity.java
public class MainActivity extends Activity { RadioGroup rg; TextView t1,t2,t3; Button btn ; DrawerLayout dl; LinearLayout left; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); left=(LinearLayout) findViewById(R.id.left); dl=(DrawerLayout) findViewById(R.id.container); rg=(RadioGroup) findViewById(R.id.fenzu); t1=(TextView) findViewById(R.id.t1); t2=(TextView) findViewById(R.id.t2); t3=(TextView) findViewById(R.id.t3); rg.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { switch (checkedId) { case R.id.dao1: t1.setVisibility(View.VISIBLE); t2.setVisibility(View.INVISIBLE); t3.setVisibility(View.INVISIBLE); break; case R.id.dao2: t1.setVisibility(View.INVISIBLE); t2.setVisibility(View.VISIBLE); t3.setVisibility(View.INVISIBLE); break; case R.id.dao3: t1.setVisibility(View.INVISIBLE); t2.setVisibility(View.INVISIBLE); t3.setVisibility(View.VISIBLE); break; default: break; } } }); btn=(Button) findViewById(R.id.btn); btn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { //参数指的是关闭抽屉出去的LinerLayuot dl.closeDrawer(left); } }); } }
旋转 渐变 移动 缩放 特效:
在res里新建anim文件夹(res里文件夹名字不要随意起),新建rotate.xml alpha.xml trans.xml scale.xml
public void onClick(View view) { Animation anim=null; switch (view.getId()) { case R.id.btnAlpha://渐变 //加载动画 anim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.alpha); break; case R.id.btnRot://旋转 //加载动画 anim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.rotate); break; case R.id.btnScale://缩放 anim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.scale); break; case R.id.btnTran://移动 anim=AnimationUtils.loadAnimation(MainActivity.this, R.anim.trans); break; default: break; } //开启动画 imgv.startAnimation(anim); }
<?xml version="1.0" encoding="utf-8"?> <rotate xmlns:android="http://schemas.android.com/apk/res/android" android:fromDegrees="0" android:toDegrees="360" android:pivotX="50%" android:pivotY="50%" android:duration="1000"> <!-- fromDegrees旋转的开始角度 toDegrees旋转结束角度 pivotX、pivotY旋转的中心点的坐标 --> </rotate>alpha.xml
<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true"> <!-- fromAlpha开始的透明度 --> <!-- duration完成该动画所需要的时间 --> <alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="1000" ></alpha> </set>trans.xml
<?xml version="1.0" encoding="utf-8"?> <translate xmlns:android="http://schemas.android.com/apk/res/android" android:fromXDelta="0%" android:toXDelta="100%p" android:fromYDelta="0%" android:toYDelta="100%p" android:duration="1000"> <!-- fromXDelta 开跑时X轴的位置 toXDelta 跑结束时X轴的位置--> </translate>scale.xml
<?xml version="1.0" encoding="utf-8"?> <scale xmlns:android="http://schemas.android.com/apk/res/android" android:pivotX="50%" android:pivotY="50%" android:fromXScale="1" android:toXScale="3" android:fromYScale="1" android:toYScale="3" android:duration="1000"> <!-- pivotX、 pivotY缩放的中心坐标 fromXScale X周缩放开始的倍数 toXScale X轴缩放结束的倍数--> </scale>
MainActivity.java
public class MainActivity extends Activity implements OnClickListener{ private ImageView imgv; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); findViewById(R.id.btnAlpha).setOnClickListener(this); findViewById(R.id.btnRot).setOnClickListener(this); findViewById(R.id.btnScale).setOnClickListener(this); findViewById(R.id.btnTran).setOnClickListener(this); imgv=(ImageView) findViewById(R.id.imgv); } @Override public void onClick(View view) { Animation anim=null; switch (view.getId()) { case R.id.btnAlpha://渐变 //加载动画 anim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.alpha); break; case R.id.btnRot://旋转 //加载动画 anim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.rotate); break; case R.id.btnScale://缩放 anim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.scale); break; case R.id.btnTran://移动 anim=AnimationUtils.loadAnimation(MainActivity.this, R.anim.trans); break; default: break; } //开启动画 imgv.startAnimation(anim); } }