【文件属性】：
文件名称：android顶部滑动导航
文件大小：2.88MB
文件格式：RAR
更新时间：2018-07-16 05:31:47
滑动导航
主界面
Fragment布局
主代码
package com.example.text;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.view.animation.LinearInterpolator;
import android.view.animation.TranslateAnimation;
import android.widget.HorizontalScrollView;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.RadioGroup.OnCheckedChangeListener;
public class MainActivity extends FragmentActivity {
private HorizontalScrollView scrollview;
private RadioGroup radioGroup;
private ImageView sayit_lines;
private ViewPager viewPager;
private LayoutInflater inflater;
private TabFragmentPagerAdapter adapter;
private int tageDistance = 0;
private int initWidth;
public static String[] tabTitle = {"全部", "南京", "上海", "南方", "金马甲", "福利特","江苏" }; //标题
public static final String ARGUMENTS_NAME = "arg";
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
scrollview = (HorizontalScrollView) findViewById(R.id.sayit_ScrollView);
radioGroup = (RadioGroup) findViewById(R.id.sayit_radioGroup);
sayit_lines = (ImageView) findViewById(R.id.sayit_lines);
viewPager = (ViewPager) findViewById(R.id.sayit_viewPager);
initView();
setListener();
}
private void setListener(){
viewPager.setOnPageChangeListener(new OnPageChangeListener() {
public void onPageSelected(int position) {
// TODO Auto-generated method stub
if (radioGroup!=null && radioGroup.getChildCount()>position) {
((RadioButton)radioGroup.getChildAt(position)).performClick();
}
}
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub
}
public void onPageScrollStateChanged(int arg0) {
// TODO Authio-generated method stub
}
});
radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// TODO Auto-generated method stub
if(radioGroup.getChildAt(checkedId)!=null){
//创建动画对象
TranslateAnimation animation = new TranslateAnimation(
//起始坐标
tageDistance ,
//获取当前RadioButton最左边的坐标值 为最终坐标
((RadioButton) radioGroup.getChildAt(checkedId)).getLeft(),
0f, 0f);
//设置此动画的加速度曲线 变化速率恒定
animation.setInterpolator(new LinearInterpolator());
//动画事件
animation.setDuration(400);
animation.setFillAfter(true);
//执行位移动画
sayit_lines.startAnimation(animation);
viewPager.setCurrentItem(checkedId); //ViewPager 跟随一起 切换
//记录当前 下标的距最左侧的 距离
tageDistance = ((RadioButton) radioGroup.getChildAt(checkedId)).getLeft();
//设置当标题改变时 HorizontalScrollView 移动的距离
//如果标题是第3个及大于第3个时 获取当前标题左端的x坐标值 否则 为 0
int x1=checkedId > 1 ? ((RadioButton) radioGroup.getChildAt(checkedId)).getLeft() : 0;
//获取第2个标题左端的x坐标值
int x2=((RadioButton) radioGroup.getChildAt(1)).getLeft();
//计算x轴方向移动的距离
int x=x1-x2;
scrollview.smoothScrollTo(x,0);
}
}
});
}
private void initView(){
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
initWidth = dm.widthPixels / 3;
LayoutParams params = sayit_lines.getLayoutParams();
params.width = (initWidth-20);// 初始化滑动下标的宽度
sayit_lines.setLayoutParams(params); //加载滑动下标的宽度
inflater = (LayoutInflater) this.getSystemService(LAYOUT_INFLATER_SERVICE);
initNavigationHSV();
adapter = new TabFragmentPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(adapter);
}
private void initNavigationHSV(){
radioGroup.removeAllViews();
for(int i=0;i
【文件预览】：
Text
----.project(840B)
----bin()
--------Text.apk(902KB)
--------AndroidManifest.xml(858B)
--------dexedLibs()
--------res()
--------resources.ap_(343KB)
--------classes()
--------R.txt(49KB)
--------classes.dex(1.92MB)
----ic_launcher-web.png(50KB)
----AndroidManifest.xml(858B)
----proguard-project.txt(781B)
----libs()
--------android-support-v4.jar(964KB)
----src()
--------com()
----project.properties(607B)
----res()
--------values()
--------layout()
--------drawable-ldpi()
--------drawable-hdpi()
--------values-v11()
--------drawable()
--------drawable-mdpi()
--------drawable-xhdpi()
--------drawable-xxhdpi()
--------menu()
--------values-w820dp()
--------values-v14()
----.classpath(475B)
----gen()
--------android()
--------com()
----assets()
