本文講述了Android自定義橫向滑動(dòng)菜單的實(shí)現(xiàn)。分享給大家供大家參考，具體如下：
創(chuàng)新互聯(lián)是一家集網(wǎng)站建設(shè),寧強(qiáng)企業(yè)網(wǎng)站建設(shè),寧強(qiáng)品牌網(wǎng)站建設(shè),網(wǎng)站定制,寧強(qiáng)網(wǎng)站建設(shè)報(bào)價(jià),網(wǎng)絡(luò)營(yíng)銷,網(wǎng)絡(luò)優(yōu)化,寧強(qiáng)網(wǎng)站推廣為一體的創(chuàng)新建站企業(yè)，幫助傳統(tǒng)企業(yè)提升企業(yè)形象加強(qiáng)企業(yè)競(jìng)爭(zhēng)力。可充分滿足這一群體相比中小企業(yè)更為豐富、高端、多元的互聯(lián)網(wǎng)需求。同時(shí)我們時(shí)刻保持專業(yè)、時(shí)尚、前沿，時(shí)刻以成就客戶成長(zhǎng)自我，堅(jiān)持不斷學(xué)習(xí)、思考、沉淀、凈化自己，讓我們?yōu)楦嗟钠髽I(yè)打造出實(shí)用型網(wǎng)站。
前言
開(kāi)發(fā)安卓過(guò)程中，經(jīng)常會(huì)用到標(biāo)題欄的樣式，有時(shí)候傳統(tǒng)方式不能滿足開(kāi)發(fā)者的需要，這時(shí)候就需要自定義控件來(lái)實(shí)現(xiàn)。（注意：本文提供思路，有關(guān)鍵代碼，但是代碼不全）
標(biāo)題欄說(shuō)明
自定義標(biāo)題欄ColumnHorizontalScrollView繼承HorizontalScrollView 這個(gè)安卓原生的控件，HorizontalScrollView是一種FrameLayout（框架布局），其子項(xiàng)被滾動(dòng)查看時(shí)是整體移動(dòng)的，并且子項(xiàng)本身可以是一個(gè)有復(fù)雜層次結(jié)構(gòu)的布局管理器。一個(gè)常見(jiàn)的應(yīng)用是子項(xiàng)在水平方向中，用戶可以滾動(dòng)顯示頂層水平排列的子項(xiàng)(items)。
在布局文件中添加ColumnHorizontalScrollView控件
橫向菜單中展示界面
注意：可以設(shè)置菜單中標(biāo)題的寬度大小，最好標(biāo)題寬度一致。
重慶分公司
重慶分公司
package com.example.app;
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.LayoutParams;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends Fragment implements OnClickListener {
private ViewPager contentPager;
private ContentPagerAdapter pagerAdapter;
private ColumnHorizontalScrollView mColumnHorizontalScrollView;
private LinearLayout mRadioGroup_content;
/** 請(qǐng)求CODE */
public final static int CHANNELREQUEST = 1;
/** 屏幕寬度 */
private int mScreenWidth = 0;
/** Item寬度 */
private int mItemWidth = 0;
/** 當(dāng)前選中的欄目*/
private int columnSelectIndex = 0;
// 標(biāo)簽信息
private List channelItems = new ArrayList();
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.activity_main, container , false);
this.contentPager = (ViewPager) v.findViewById(R.id.contentPager);
this.pagerAdapter = new ContentPagerAdapter(getChildFragmentManager());
this.contentPager.setAdapter(this.pagerAdapter);
this.contentPager.setCurrentItem(0);
this.contentPager.setOnPageChangeListener(pageListener);
this.mColumnHorizontalScrollView = (ColumnHorizontalScrollView) v.findViewById(R.id.mColumnHorizontalScrollView);
this.mRadioGroup_content = (LinearLayout) v.findViewById(R.id.mRadioGroup_content);
this.setChangeView();
return v;
}
/**
* 設(shè)置標(biāo)題適配器
* @author raotaisen
*
*/
private class ContentPagerAdapter extends FragmentPagerAdapter {
public ContentPagerAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
@Override
public Fragment getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return channelItems.size();
}
/**
* 標(biāo)題設(shè)置
*/
@Override
public CharSequence getPageTitle(int position) {
ChannelItem item = channelItems.get(position);
return item.getChanneName();
}
}
/**
* ViewPager切換監(jiān)聽(tīng)方法
* */
public ViewPager.OnPageChangeListener pageListener= new ViewPager.OnPageChangeListener(){
@Override
public void onPageScrollStateChanged(int arg0) {
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageSelected(int position) {
contentPager.setCurrentItem(position);
selectTab(position);
}
};
/**
* 選擇的Column里面的Tab
* */
private void selectTab(int tab_postion) {
columnSelectIndex = tab_postion;
for (int i = 0; i < mRadioGroup_content.getChildCount(); i++) {
View checkView = mRadioGroup_content.getChildAt(tab_postion);
int k = checkView.getMeasuredWidth();
int l = checkView.getLeft();
int i2 = l + k / 2 - mScreenWidth / 2;
// rg_nav_content.getParent()).smoothScrollTo(i2, 0);
mColumnHorizontalScrollView.smoothScrollTo(i2, 0);
// mColumnHorizontalScrollView.smoothScrollTo((position - 2) *
// mItemWidth , 0);
}
//判斷是否選中
for (int j = 0; j < mRadioGroup_content.getChildCount(); j++) {
View checkView = mRadioGroup_content.getChildAt(j);
boolean ischeck;
if (j == tab_postion) {
ischeck = true;
} else {
ischeck = false;
}
checkView.setSelected(ischeck);
}
// 指向?qū)?yīng)的tab位置
switch (tab_postion) {
}
}
/**
* 當(dāng)欄目項(xiàng)發(fā)生變化時(shí)候調(diào)用
*/
private void setChangeView() {
gettColumnData();
initTabColumn();
}
/**
* 獲取標(biāo)簽欄數(shù)據(jù)
*/
private void gettColumnData() {
channelItems.clear();
channelItems.add(new ChannelItem(null, "蔥蔥"));
channelItems.add(new ChannelItem(null, "飛飛"));
channelItems.add(new ChannelItem(null, "vv"));
channelItems.add(new ChannelItem(null, "剛子"));
channelItems.add(new ChannelItem(null, "最新"));
/**
* 標(biāo)題可以動(dòng)態(tài)設(shè)置長(zhǎng)度。獲取數(shù)據(jù)添加到集合中展示。
*/
pagerAdapter.notifyDataSetChanged();
}
/**
*初始化Column欄目項(xiàng)
*/
private void initTabColumn() {
mRadioGroup_content.removeAllViews();
int count = channelItems.size();
// 設(shè)置橫向菜單欄中item屬性
mColumnHorizontalScrollView.setParam(getActivity(), mScreenWidth, mRadioGroup_content, null, null, null, null);
for(int i = 0; i< count; i++){
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT , LayoutParams.WRAP_CONTENT);
params.leftMargin = 6;
params.rightMargin = 6;
// TextView localTextView = (TextView) mInflater.inflate(R.layout.column_radio_item, null);
TextView columnTextView = new TextView(getActivity());
columnTextView.setTextSize(16);
columnTextView.setGravity(Gravity.CENTER);
columnTextView.setPadding(5, 5, 5, 5);
columnTextView.setId(i);
columnTextView.setText(channelItems.get(i).getChanneName());
// columnTextView.setTextColor(getResources().getColorStateList(R.color.top_category_scroll_text_color_day));
if(columnSelectIndex == i){
columnTextView.setSelected(true);
}
// 對(duì)item的監(jiān)聽(tīng)
columnTextView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
for(int i = 0;i < mRadioGroup_content.getChildCount();i++){
View localView = mRadioGroup_content.getChildAt(i);
if (localView != v) {
localView.setSelected(false);
}else{
localView.setSelected(true);
contentPager.setCurrentItem(i);
}
}
// Toast.makeText(getApplicationContext(), userChannelList.get(v.getId()).getName(), Toast.LENGTH_SHORT).show();
}
});
mRadioGroup_content.addView(columnTextView, i ,params);
}
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
}
標(biāo)題菜單橫向滑動(dòng)自定義控件
package com.example.app;
import android.app.Activity;
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.HorizontalScrollView;
import android.widget.ImageView;
public class ColumnHorizontalScrollView extends HorizontalScrollView {
/** 傳入整體布局 */
private View ll_content;
/** 傳入更多欄目選擇布局 */
private View ll_more;
/** 傳入拖動(dòng)欄布局 */
private View rl_column;
/** 左陰影圖片 */
private ImageView leftImage;
/** 右陰影圖片 */
private ImageView rightImage;
/** 屏幕寬度 */
private int mScreenWitdh = 0;
/** 父類的活動(dòng)activity */
private Activity activity;
public ColumnHorizontalScrollView(Context context) {
super(context);
}
public ColumnHorizontalScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ColumnHorizontalScrollView(Context context, AttributeSet attrs,
int defStyle) {
super(context, attrs, defStyle);
}
/**
* 在拖動(dòng)的時(shí)候執(zhí)行
* */
@Override
protected void onScrollChanged(int paramInt1, int paramInt2, int paramInt3, int paramInt4) {
// TODO Auto-generated method stub
super.onScrollChanged(paramInt1, paramInt2, paramInt3, paramInt4);
shade_ShowOrHide();
if(!activity.isFinishing() && ll_content !=null && leftImage!=null && rightImage!=null && ll_more!=null && rl_column !=null){
if(ll_content.getWidth() <= mScreenWitdh){
leftImage.setVisibility(View.GONE);
rightImage.setVisibility(View.GONE);
}
}else{
return;
}
if(paramInt1 ==0){
leftImage.setVisibility(View.GONE);
rightImage.setVisibility(View.VISIBLE);
return;
}
if(ll_content.getWidth() - paramInt1 + ll_more.getWidth() + rl_column.getLeft() == mScreenWitdh){
leftImage.setVisibility(View.VISIBLE);
rightImage.setVisibility(View.GONE);
return;
}
leftImage.setVisibility(View.VISIBLE);
rightImage.setVisibility(View.VISIBLE);
}
/**
* 傳入父類布局中的資源文件
* */
public void setParam(Activity activity, int mScreenWitdh,View paramView1,ImageView paramView2, ImageView paramView3 ,View paramView4,View paramView5){
this.activity = activity;
this.mScreenWitdh = mScreenWitdh;
ll_content = paramView1;
leftImage = paramView2;
rightImage = paramView3;
ll_more = paramView4;
rl_column = paramView5;
}
/**
* 判斷左右陰影的顯示隱藏效果
* */
public void shade_ShowOrHide() {
if (!activity.isFinishing() && ll_content != null) {
measure(0, 0);
//如果整體寬度小于屏幕寬度的話，那左右陰影都隱藏
if (mScreenWitdh >= getMeasuredWidth()) {
leftImage.setVisibility(View.GONE);
rightImage.setVisibility(View.GONE);
}
} else {
return;
}
//如果滑動(dòng)在最左邊時(shí)候，左邊陰影隱藏，右邊顯示
if (getLeft() == 0) {
leftImage.setVisibility(View.GONE);
rightImage.setVisibility(View.VISIBLE);
return;
}
//如果滑動(dòng)在最右邊時(shí)候，左邊陰影顯示，右邊隱藏
if (getRight() == getMeasuredWidth() - mScreenWitdh) {
leftImage.setVisibility(View.VISIBLE);
rightImage.setVisibility(View.GONE);
return;
}
//否則，說(shuō)明在中間位置，左、右陰影都顯示
leftImage.setVisibility(View.VISIBLE);
rightImage.setVisibility(View.VISIBLE);
}
}
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持創(chuàng)新互聯(lián)。
