溫馨提示×
您好，登錄后才能下訂單哦！
點擊 登錄注冊 即表示同意《億速云用戶服務條款》
您好，登錄后才能下訂單哦！
本文講述了Android自定義橫向滑動菜單的實現。分享給大家供大家參考，具體如下：
前言
開發安卓過程中，經常會用到標題欄的樣式，有時候傳統方式不能滿足開發者的需要，這時候就需要自定義控件來實現。（注意：本文提供思路，有關鍵代碼，但是代碼不全）
標題欄說明
自定義標題欄ColumnHorizontalScrollView繼承HorizontalScrollView 這個安卓原生的控件，HorizontalScrollView是一種FrameLayout（框架布局），其子項被滾動查看時是整體移動的，并且子項本身可以是一個有復雜層次結構的布局管理器。一個常見的應用是子項在水平方向中，用戶可以滾動顯示頂層水平排列的子項(items)。
在布局文件中添加ColumnHorizontalScrollView控件
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tabs="http://schemas.android.com/apk/res-auto"
android:id="@+id/homeTabs"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/db_bg_gray"
android:orientation="vertical">
<com.wankr.app.widget.ColumnHorizontalScrollView
android:id="@+id/mColumnHorizontalScrollView"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_centerVertical="true"
android:scrollbars="none">
<LinearLayout
android:id="@+id/mRadioGroup_content"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:layout_centerVertical="true"
android:gravity="center_vertical"
android:orientation="horizontal"
android:paddingLeft="10.0dip"
android:paddingRight="10.0dip" />
</com.wankr.app.widget.ColumnHorizontalScrollView>
<android.support.v4.view.ViewPager
android:id="@+id/contentPager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
橫向菜單中展示界面
注意：可以設置菜單中標題的寬度大小，最好標題寬度一致。
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;
/** 請求CODE */
public final static int CHANNELREQUEST = 1;
/** 屏幕寬度 */
private int mScreenWidth = 0;
/** Item寬度 */
private int mItemWidth = 0;
/** 當前選中的欄目*/
private int columnSelectIndex = 0;
// 標簽信息
private List<ChannelItem> channelItems = new ArrayList<ChannelItem>();
@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;
}
/**
* 設置標題適配器
* @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();
}
/**
* 標題設置
*/
@Override
public CharSequence getPageTitle(int position) {
ChannelItem item = channelItems.get(position);
return item.getChanneName();
}
}
/**
* ViewPager切換監聽方法
* */
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);
}
// 指向對應的tab位置
switch (tab_postion) {
}
}
/**
* 當欄目項發生變化時候調用
*/
private void setChangeView() {
gettColumnData();
initTabColumn();
}
/**
* 獲取標簽欄數據
*/
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"));
/**
* 標題可以動態設置長度。獲取數據添加到集合中展示。
*/
pagerAdapter.notifyDataSetChanged();
}
/**
*初始化Column欄目項
*/
private void initTabColumn() {
mRadioGroup_content.removeAllViews();
int count = channelItems.size();
// 設置橫向菜單欄中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item的監聽
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
}
}
標題菜單橫向滑動自定義控件
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);
}
/**
* 在拖動的時候執行
* */
@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;
}
//如果滑動在最左邊時候，左邊陰影隱藏，右邊顯示
if (getLeft() == 0) {
leftImage.setVisibility(View.GONE);
rightImage.setVisibility(View.VISIBLE);
return;
}
//如果滑動在最右邊時候，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內容，希望對大家的學習有所幫助，也希望大家多多支持億速云。
免責聲明：本站發布的內容（圖片、視頻和文字）以原創、轉載和分享為主，文章觀點不代表本網站立場，如果涉及侵權請聯系站長郵箱：is@yisu.com進行舉報，并提供相關證據，一經查實，將立刻刪除涉嫌侵權內容。
