标签:android style blog http io color ar os 使用
一. 运行效果
如下图所示,滑动屏幕可以切换布局"空间"、"相册"、"关注".同时会有图标颜色变蓝,背景颜色加深的效果.
同时添加了按钮事件,在fragment1中点击按钮显示内容,在fragment3中点击按钮获取第二个布局内容并显示.
二. 项目工程结构
三. Include布局XML文件
首先添加头部布局top_layout.xml,采用相对布局,右边两图标:
- <?xml version="1.0" encoding="utf-8"?>
- <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_width="match_parent"
- android:layout_height="50dp"
- android:paddingLeft="12dp"
- android:paddingRight="12dp"
- android:background="@drawable/image_toolbar_bg" >
- <LinearLayout
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_centerVertical="true"
- android:layout_gravity="center"
- android:orientation="horizontal" >
- <ImageView
- android:layout_width="30dp"
- android:layout_height="30dp"
- android:src="@drawable/icon_suishoupai" />
- <TextView
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_marginLeft="12dp"
- android:text="随手拍"
- android:textSize="15sp"
- android:layout_gravity="center"
- android:textColor="#ffffff" />
- </LinearLayout>
- <LinearLayout
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_centerVertical="true"
- android:layout_gravity="center"
- android:layout_alignParentRight="true"
- android:orientation="horizontal" >
- <ImageView
- android:layout_width="30dp"
- android:layout_height="30dp"
- android:src="@drawable/image_top_watch" />
- <ImageView
- android:layout_width="30dp"
- android:layout_height="30dp"
- android:src="@drawable/image_top_add" />
- </LinearLayout>
- </RelativeLayout>
然后添加底部布局bottom_layout.xml,由3个LinearLayout水平布局组成,其中每个LinearLayout有ImageView和TextView组成:
- <?xml version="1.0" encoding="utf-8"?>
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_width="match_parent"
- android:layout_height="40dp"
- android:background="@drawable/image_toolbar_bg"
- android:orientation="horizontal" >
- <LinearLayout
- android:id="@+id/bottomLayout1"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:gravity="center"
- android:background="@drawable/image_toolbar_bg_sel"
- android:orientation="vertical" >
- <ImageView
- android:id="@+id/image1"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:padding="1dp"
- android:src="@drawable/image_bottom_effect" />
- <TextView
- android:layout_width="wrap_content"
- android:layout_height="15dp"
- android:text="空间"
- android:textColor="#ffffff"
- android:textSize="10dp" />
- </LinearLayout>
- <LinearLayout
- android:id="@+id/bottomLayout2"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:gravity="center"
- android:orientation="vertical" >
- <ImageView
- android:id="@+id/image2"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:padding="1dp"
- android:src="@drawable/image_bottom_frame_no" />
- <TextView
- android:layout_width="wrap_content"
- android:layout_height="15dp"
- android:text="相册"
- android:textColor="#ffffff"
- android:textSize="10dp" />
- </LinearLayout>
- <LinearLayout
- android:id="@+id/bottomLayout3"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:gravity="center"
- android:orientation="vertical" >
- <ImageView
- android:id="@+id/image3"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:padding="1dp"
- android:src="@drawable/image_bottom_person_no" />
- <TextView
- android:layout_width="wrap_content"
- android:layout_height="15dp"
- android:text="关注"
- android:textColor="#ffffff"
- android:textSize="10dp" />
- </LinearLayout>
- </LinearLayout>
最后在activity_main.xml中调用Include布局,ViewPager用于加载不同的fragment,并实现触屏切换在该控件上:
- <LinearLayout 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"
- android:orientation="vertical">
-
- <include layout="@layout/top_layout"/>
- <android.support.v4.view.ViewPager
- android:id="@+id/viewpager1"
- android:layout_width="match_parent"
- android:layout_height="0dp"
- android:background="#ccffff"
- android:layout_weight="1" />
- <include layout="@layout/bottom_layout"/>
-
- </LinearLayout>
在MainActivity.java中onCreate函数设置无标题requestWindowFeature(Window.FEATURE_NO_TITLE),在xml文件中可设置Frame预览效果无标题,显示布局如下图所示:
四. 实现触屏切换fragment
首先设置Fragment的布局XML文件,fragment_layout1.xml如下,其他类似:
- <?xml version="1.0" encoding="utf-8"?>
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_width="match_parent"
- android:layout_height="match_parent"
- android:orientation="vertical" >
- <TextView
- android:id="@+id/textView1"
- android:layout_width="fill_parent"
- android:layout_height="wrap_content"
- android:textSize="25sp"
- android:gravity="center"
- android:text="The First Fragment" />
- <Button
- android:id="@+id/button1"
- android:layout_width="fill_parent"
- android:layout_height="wrap_content"
- android:text="Button1" />
- </LinearLayout>
然后添加FragmentFirst.java、FragmentSecond.java和FragmentThird,其中FragmentSecond.java如下,其他类似:
- package com.example.layouttest;
-
- import android.os.Bundle;
- import android.support.v4.app.Fragment;
- import android.view.LayoutInflater;
- import android.view.View;
- import android.view.ViewGroup;
-
- public class FragmentSecond extends Fragment {
-
- @Override
- public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
- return inflater.inflate(R.layout.fragment_layout2, container, false);
- }
- }
PS:由于刚学习Android一个月,所以文章很基础,在新建类中可以点击"浏览"自定义添加继承超类或点击"添加"增加接口,此处继承Fragment.注意"import android.support.v4.app.Fragment;"所有的需要一致.
然后设置MainActivity.java,代码如下:
- package com.example.layouttest;
-
- import java.util.ArrayList;
- import java.util.List;
- import android.os.Bundle;
- import android.support.v4.app.Fragment;
- import android.support.v4.app.FragmentActivity;
- import android.support.v4.app.FragmentPagerAdapter;
- import android.support.v4.view.ViewPager;
- import android.view.Window;
-
- public class MainActivity extends FragmentActivity {
-
-
- private ViewPager viewPager1;
- private FragmentPagerAdapter fpAdapter;
- private List<Fragment> listData;
-
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
-
- requestWindowFeature(Window.FEATURE_NO_TITLE);
- setContentView(R.layout.activity_main);
-
- setViewPager();
- }
- private void setViewPager() {
-
- viewPager1 = (ViewPager) findViewById(R.id.viewpager1);
- listData = new ArrayList<Fragment>();
- FragmentFirst fragmentFirst = new FragmentFirst();
- FragmentSecond fragmentSecond = new FragmentSecond();
- FragmentThird fragmentThird = new FragmentThird();
-
- listData.add(fragmentFirst);
- listData.add(fragmentSecond);
- listData.add(fragmentThird);
-
- fpAdapter =new FragmentPagerAdapter(getSupportFragmentManager())
- {
- @Override
- public int getCount()
- {
- return listData.size();
- }
- @Override
- public Fragment getItem(int arg0)
- {
- return listData.get(arg0);
- }
- };
-
- viewPager1.setAdapter(fpAdapter);
- }
- }
此时即可实现触屏切换效果,但同时需要注意:
(1).需要把MainActivity继承从Activity改为FragmentActivity.
(2).可能会遇到错误"类型对于参数(FragmentFirst)不适用",你需要把导入修改"import android.support.v4.app.Fragment;"同时注意support.v4.app/view 保持一致.
五. 实现滑屏变换图标
此时设置底部滑动切换的图标时需要添加自定义变量:
- private ImageView image1;
- private ImageView image2;
- private ImageView image3;
- private LinearLayout layout1;
- private LinearLayout layout2;
- private LinearLayout layout3;
然后,在setViewPager()函数中"viewPager1.setAdapter(fpAdapter)"后添加如下代码即可实现,其中switch中0、1、2对应listData中装入的三个布局:
- image1 = (ImageView) findViewById(R.id.image1);
- image2 = (ImageView) findViewById(R.id.image2);
- image3 = (ImageView) findViewById(R.id.image3);
- layout1 = (LinearLayout) findViewById(R.id.bottomLayout1);
- layout2 = (LinearLayout) findViewById(R.id.bottomLayout2);
- layout3 = (LinearLayout) findViewById(R.id.bottomLayout3);
- viewPager1.setOnPageChangeListener(new OnPageChangeListener() {
- @Override
- public void onPageSelected(int arg0)
- {
- switch(arg0)
- {
- case 0:
-
- image1.setImageDrawable(getResources().getDrawable(R.drawable.image_bottom_effect));
- image2.setImageDrawable(getResources().getDrawable(R.drawable.image_bottom_frame_no));
- image3.setImageDrawable(getResources().getDrawable(R.drawable.image_bottom_person_no));
-
- layout1.setBackgroundResource(R.drawable.image_toolbar_bg_sel);
- layout2.setBackgroundResource(R.drawable.image_toolbar_bg);
- layout3.setBackgroundResource(R.drawable.image_toolbar_bg);
- break;
- case 1:
-
- image1.setImageDrawable(getResources().getDrawable(R.drawable.image_bottom_effect_no));
- image2.setImageDrawable(getResources().getDrawable(R.drawable.image_bottom_frame));
- image3.setImageDrawable(getResources().getDrawable(R.drawable.image_bottom_person_no));
-
- layout1.setBackgroundResource(R.drawable.image_toolbar_bg);
- layout2.setBackgroundResource(R.drawable.image_toolbar_bg_sel);
- layout3.setBackgroundResource(R.drawable.image_toolbar_bg);
- break;
- case 2:
-
- image1.setImageDrawable(getResources().getDrawable(R.drawable.image_bottom_effect_no));
- image2.setImageDrawable(getResources().getDrawable(R.drawable.image_bottom_frame_no));
- image3.setImageDrawable(getResources().getDrawable(R.drawable.image_bottom_person));
-
- layout1.setBackgroundResource(R.drawable.image_toolbar_bg);
- layout2.setBackgroundResource(R.drawable.image_toolbar_bg);
- layout3.setBackgroundResource(R.drawable.image_toolbar_bg_sel);
- break;
- }
- }
- @Override
- public void onPageScrolled(int arg0, float arg1, int arg2)
- {
-
- }
- @Override
- public void onPageScrollStateChanged(int arg0)
- {
-
- }
- });
六. 调用Fragment中按钮及传递参数
设置FragmentFirst.java文件,通过onActivityCreated函数实现点击按钮事件:
- public class FragmentFirst extends Fragment {
-
- @Override
- public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
- return inflater.inflate(R.layout.fragment_layout1, container, false);
- }
-
- @Override
- public void onActivityCreated(Bundle savedInstanceState) {
- super.onActivityCreated(savedInstanceState);
-
- Button button1 = (Button) getActivity().findViewById(R.id.button1);
- button1.setOnClickListener(new OnClickListener() {
- @Override
- public void onClick(View v) {
- TextView textView1 = (TextView) getActivity().findViewById(R.id.textView1);
- textView1.setText("在fragment1中点击按钮");
- }
- });
- }
- }
FragmentThird.java实现点击Fragment3中按钮获取Fragment2中数据:
- public class FragmentThird extends Fragment {
-
- @Override
- public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
- return inflater.inflate(R.layout.fragment_layout3, container, false);
- }
-
- @Override
- public void onActivityCreated(Bundle savedInstanceState) {
- super.onActivityCreated(savedInstanceState);
-
- Button button3 = (Button) getActivity().findViewById(R.id.button3);
- button3.setOnClickListener(new OnClickListener() {
- @Override
- public void onClick(View v) {
- TextView textView1 = (TextView) getActivity().findViewById(R.id.textView2);
- TextView textView3 = (TextView) getActivity().findViewById(R.id.textView3);
- textView3.setText("点击按钮获取fragment2信息:\n"+textView1.getText());
- }
- });
- }
- }
PS:是否Fragment的XML文件TextView需要设置不同的id,如果Fragment1与Fragment2设置相同的textView1程序没有响应.
[Android] 使用Include布局+Fragment滑动切换屏幕
标签:android style blog http io color ar os 使用
原文地址:http://www.cnblogs.com/yuyanbian/p/4086265.html