Android多功能导航栏菜单

package com.ywl5320.navigationbar.bar; import android.app.Activity; import android.content.Context; import android.support.v4.view.ViewPager; import android.util.AttributeSet; import android.util.DisplayMetrics; import android.view.Gravity; import android.view.View; import android.widget.LinearLayout; import android.widget.RelativeLayout; import android.widget.TextView; /** * Created by ywl on 2016/6/27. */ public class NavitationLayout extends RelativeLayout{ private TextView[] textViews; // 标题栏数组，用于存储要显示的标题 private LinearLayout titleLayout; //标题栏父控件 private ViewPager viewPager; private View bgLine; //导航背景色 private View navLine; //导航条颜色 private int navWidth = 0; //导航条宽度 private int txtUnselectedColor = 0; private int txtSelectedColor = 0; private int txtUnselectedSize = 16; private int txtSelectedSize = 16; private int widOffset = 0; private OnTitleClickListener onTitleClickListener; private OnNaPageChangeListener onNaPageChangeListener; public NavitationLayout(Context context) { this(context, null); } public NavitationLayout(Context context, AttributeSet attrs) { this(context, attrs, 0); } public NavitationLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); titleLayout = new LinearLayout(context); LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT); titleLayout.setLayoutParams(layoutParams); titleLayout.setOrientation(LinearLayout.HORIZONTAL); addView(titleLayout); } public void setOnTitleClickListener(OnTitleClickListener onTitleClickListener) { this.onTitleClickListener = onTitleClickListener; } public void setOnNaPageChangeListener(OnNaPageChangeListener onNaPageChangeListener) { this.onNaPageChangeListener = onNaPageChangeListener; } private void setTitles(Context context, String[] titles, final boolean smoothScroll) { this.textViews = new TextView[titles.length]; LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0,LayoutParams.MATCH_PARENT); params.weight = 1; params.gravity = Gravity.CENTER; // 循环，根据标题栏动态生成TextView来显示标题，每个标题栏的宽度比例为1:1,其中的内容居中。 for(int i = 0; i < titles.length; i++) { final int index = i; TextView textView = new TextView(context); textView.setText(titles[i]); textView.setGravity(Gravity.CENTER); textViews[i] = textView; textViews[i].setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { viewPager.setCurrentItem(index, smoothScroll); if(onTitleClickListener != null) { onTitleClickListener.onTitleClick(v); } } }); titleLayout.addView(textView, params); } } private void setTitles(Context context, String[] titles, final boolean smoothScroll, int splilinecolor, float splilinewidth, float topoffset, float bottomoffset) { this.textViews = new TextView[titles.length]; LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0,LayoutParams.MATCH_PARENT); params.weight = 1; params.gravity = Gravity.CENTER; LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(dip2px(context, splilinewidth),LayoutParams.MATCH_PARENT); lp.setMargins(0, dip2px(context, topoffset), 0, dip2px(context, bottomoffset)); // 循环，根据标题栏动态生成TextView来显示标题，每个标题栏的宽度比例为1:1,其中的内容居中。 for(int i = 0; i < titles.length; i++) { final int index = i; TextView textView = new TextView(context); textView.setText(titles[i]); textView.setGravity(Gravity.CENTER); textViews[i] = textView; textViews[i].setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { viewPager.setCurrentItem(index, smoothScroll); if(onTitleClickListener != null) { onTitleClickListener.onTitleClick(v); } } }); titleLayout.addView(textView, params); if(i < titles.length - 1) { View view = new View(context); view.setBackgroundColor(splilinecolor); titleLayout.addView(view, lp); } } } /** * 设置导航背景色 * @param context * @param height * @param color */ public void setBgLine(Context context, int height, int color) { height = dip2px(context,height); LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT, height); bgLine = new View(context); bgLine.setLayoutParams(layoutParams); bgLine.setBackgroundColor(context.getResources().getColor(color)); LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, height); lp.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE); addView(bgLine, lp); } /** * 设置导航条颜色 * @param context * @param height * @param color * @param currentPosition */ public void setNavLine(Activity context, int height, int color, int currentPosition) { if(textViews != null) { navWidth = getScreenWidth(context) / textViews.length; } height = dip2px(context,height); System.out.println("width:" + navWidth); LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT, height); navLine = new View(context); navLine.setLayoutParams(layoutParams); navLine.setBackgroundColor(context.getResources().getColor(color)); LayoutParams lp = new LayoutParams(navWidth, height); lp.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE); addView(navLine, lp); moveBar(navLine, navWidth, widOffset, currentPosition); } /** * * @param context 上下文 * @param titles 标题栏 * @param viewPager * @param unselectedcolor 未选中字体颜色 * @param setectedcolor 选中字体颜色 * @param txtUnselectedSize 未选中字体大小 * @param txtSelectedSize 选中字体大小 * @param currentPosition 当前viewpager的位置 * @param widOffset 导航条的边距 * @param smoothScroll 滑动类型 */ public void setViewPager(final Context context, String[] titles, ViewPager viewPager, final int unselectedcolor, final int setectedcolor, int txtUnselectedSize, final int txtSelectedSize, final int currentPosition, int widOffset, boolean smoothScroll) { this.viewPager = viewPager; this.txtUnselectedColor = unselectedcolor; this.txtSelectedColor = setectedcolor; this.txtUnselectedSize = txtUnselectedSize; this.txtSelectedSize = txtSelectedSize; this.widOffset = dip2px(context, widOffset); viewPager.setCurrentItem(currentPosition); setTitles(context, titles, smoothScroll); setUnselectedTxtColor(context, unselectedcolor, txtUnselectedSize); setSelectedTxtColor(context, setectedcolor, txtSelectedSize, currentPosition); viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {