demo1233

2019-11-07 23:23:00

字体：大中小

来源：转载

供稿：网友

public class DepthPageTransformer implements ViewPager.PageTransformer { PRivate static final float MIN_SCALE = 0.75f; public void transformPage(View view, float position) { int pageWidth = view.getWidth(); if (position < -1) //[-无穷 , -1) { // this page is way off_screen to the left view.setAlpha(0); } else if (position <= 0) //[-1 , 0] { //Use the default slide transition when moving to the left page view.setAlpha(1); view.setTranslationX(0); view.setScaleX(1); view.setScaleY(1); } else if (position <= 1) //(0 , 1] { //Fade the page out view.setAlpha(1 - position); //Counteract the default slide transition view.setTranslationX(pageWidth * -position); //scale the page down(between MIN_SCALE and 1) float scaleFactor = MIN_SCALE + (1 - MIN_SCALE) * (1 - Math.abs(position)); view.setScaleX(scaleFactor); view.setScaleY(scaleFactor); } else { // this page is way off_screen to the right view.setAlpha(0); } }}public class FixedSpeedScroller extends Scroller { private int mDuration = 1000; public FixedSpeedScroller(Context context) { super(context); // TODO Auto-generated constructor stub } public FixedSpeedScroller(Context context, Interpolator interpolator) { super(context, interpolator); } @Override public void startScroll(int startX, int startY, int dx, int dy, int duration) { // Ignore received duration, use fixed one instead super.startScroll(startX, startY, dx, dy, mDuration); } @Override public void startScroll(int startX, int startY, int dx, int dy) { // Ignore received duration, use fixed one instead super.startScroll(startX, startY, dx, dy, mDuration); } public void setmDuration(int time) { mDuration = time; } public int getmDuration() { return mDuration; }}public class SliderImageLayout extends RelativeLayout implements ViewPager.OnPageChangeListener { private LayoutInflater mInflater; private Context mContext; private ViewPager mViewPager; private LinearLayout mDotLayout; private TextView mTitleTV; private FixedSpeedScroller mScroller; private OnSliderItemClickListener mOnSliderItemClickListener; private int imgSize = 0; private List<ImageView> mListImgView; private List<String> titleTexts; private int previousPosition = 0; private Handler handler = new Handler() { @Override public void handleMessage(Message msg) { if (msg.what == 0x112) { mViewPager.setCurrentItem(mViewPager.getCurrentItem() + 1); } else if (msg.what == 0x123) { Bitmap bitmap = (Bitmap) msg.obj; if (bitmap != null) { ImageView imageView = new ImageView(mContext); imageView.setImageBitmap(bitmap); mListImgView.add(imageView); if (mListImgView.size() == imgSize) { setViewPagerAdapter(); } } } } }; public SliderImageLayout(Context context) { this(context, null); } public SliderImageLayout(Context context, AttributeSet attrs) { this(context, attrs, 0); } public SliderImageLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); mContext = context; initView(); } private void initView() { mListImgView = new ArrayList<>(); titleTexts = new ArrayList<>(); mInflater = LayoutInflater.from(mContext); View view = mInflater.inflate(R.layout.view_slider_layout, this); mDotLayout = (LinearLayout) view.findViewById(R.id.ll_dot_group); mTitleTV = (TextView) view.findViewById(R.id.tv_img_desc); mViewPager = (ViewPager) view.findViewById(R.id.viewPager); mViewPager.setPageTransformer(true, new DepthPageTransformer()); mViewPager.setOnPageChangeListener(this); try { Field mField = ViewPager.class.getDeclaredField("mScroller"); mField.set accessible(true); mScroller = new FixedSpeedScroller(mContext, new AccelerateInterpolator()); mField.set(mViewPager, mScroller); } catch (Exception e) { e.printStackTrace(); } } public void setSliderImg(final String imgUrl) { imgSize += 1; new Thread() { @Override public void run() { InputStream in = null; try { URL url = new URL(imgUrl); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(5 * 1000); conn.setRequestMethod("GET"); in = new BufferedInputStream(conn.getInputStream()); Bitmap bitmap = BitmapFactory.decodeStream(in); Message msg = new Message(); msg.what = 0x123; msg.obj = bitmap; handler.sendMessage(msg); conn.disconnect(); } catch (Exception e) { e.printStackTrace(); } finally { if (in != null) { try { in.close(); } catch (IOException e) { e.printStackTrace(); } } } } }.start(); } public void setSliderImg(int imgId) { imgSize += 1; Bitmap bitmap = BitmapFactory.decodeResource(getResources(), imgId); Message msg = new Message(); msg.what = 0x123; msg.obj = bitmap; handler.sendMessage(msg); } public void setTitleText(String titleText) { if (!TextUtils.isEmpty(titleText)) { titleTexts.add(titleText); } } private void setViewPagerAdapter() { initDotViews(); mViewPager.setAdapter(new ViewPagerAdapter()); mScroller.setmDuration(700); mViewPager.setCurrentItem(Integer.MAX_VALUE / 2 - (Integer.MAX_VALUE / 2 % mListImgView.size())); new Timer().schedule(new TimerTask() { @Override public void run() { handler.sendEmptyMessage(0x112); } }, 0, 4500); } private void initDotViews() { View dotView; for (int i = 0; i < mListImgView.size(); i++) { dotView = new View(mContext); dotView.setBackgroundResource(R.drawable.selector_dot); LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(10, 10); if (i != 0) { lp.leftMargin = 15; } dotView.setLayoutParams(lp); dotView.setEnabled(true); mDotLayout.addView(dotView); } } @Override public void onPageSelected(int position) { int newPosition = position % mListImgView.size(); mDotLayout.getChildAt(newPosition).setEnabled(false); if (titleTexts != null && titleTexts.size() > 0) { mTitleTV.setVisibility(VISIBLE); mTitleTV.setText(titleTexts.get(newPosition)); } mDotLayout.getChildAt(previousPosition).setEnabled(true); previousPosition = newPosition; } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageScrollStateChanged(int state) { } private class ViewPagerAdapter extends PagerAdapter { @Override public int getCount() { return Integer.MAX_VALUE; } @Override public Object instantiateItem(ViewGroup container, int position) { //对ViewPager页号求模取出View列表中要显示的项 position %= mListImgView.size(); if (position < 0) { position = mListImgView.size() + position; } final ImageView view = mListImgView.get(position); //如果View已经在之前添加到了一个父组件，则必须先remove，否则会抛出IllegalStateException。 ViewGroup vp = (ViewGroup) view.getParent(); if (vp != null) { vp.removeView(view); } container.addView(view); final int newPosition = position; view.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if (mOnSliderItemClickListener != null) { mOnSliderItemClickListener.onSliderItemClick(newPosition); } } }); return view; } @Override public void destroyItem(ViewGroup container, int position, Object object) { } @Override public boolean isViewFromObject(View view, Object object) { return view == object; } } public void setOnSliderItemClickListener(OnSliderItemClickListener onSliderItemClickListener) { mOnSliderItemClickListener = onSliderItemClickListener; } public interface OnSliderItemClickListener { void onSliderItemClick(int position); }}public class AutoScrollTextView extends TextView implements View.OnClickListener{ public final static String TAG = AutoScrollTextView.class.getSimpleName(); private float textLength = 0f;//文本长度 private float viewWidth = 0f; private float step = 0f;//文字的横坐标 private float y = 0f;//文字的纵坐标 private float temp_view_plus_text_length = 0.0f;//用于计算的临时变量 private float temp_view_plus_two_text_length = 0.0f;//用于计算的临时变量 public boolean isStarting = false;//是否开始滚动 private Paint paint = null;//绘图样式 private String text = "";//文本内容 public AutoScrollTextView(Context context) { super(context); initView(); } public AutoScrollTextView(Context context, AttributeSet attrs) { super(context, attrs); initView(); } public AutoScrollTextView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); initView(); } private void initView() { setOnClickListener(this); } public void init(WindowManager windowManager) { paint = getPaint(); text = getText().toString(); textLength = paint.measureText(text); viewWidth = getWidth(); if(viewWidth == 0) { if(windowManager != null) { Display display = windowManager.getDefaultDisplay(); viewWidth = display.getWidth(); } } step = textLength; temp_view_plus_text_length = viewWidth + textLength; temp_view_plus_two_text_length = viewWidth + textLength * 2; y = getTextSize() + getPaddingTop(); } @Override public Parcelable onSaveInstanceState() { Parcelable superState = super.onSaveInstanceState(); SavedState ss = new SavedState(superState); ss.step = step; ss.isStarting = isStarting; return ss; } @Override public void onRestoreInstanceState(Parcelable state) { if (!(state instanceof SavedState)) { super.onRestoreInstanceState(state); return; } SavedState ss = (SavedState)state; super.onRestoreInstanceState(ss.getSuperState()); step = ss.step; isStarting = ss.isStarting; } public static class SavedState extends BaseSavedState { public boolean isStarting = false; public float step = 0.0f; SavedState(Parcelable superState) { super(superState); } @Override public void writeToParcel(Parcel out, int flags) { super.writeToParcel(out, flags); out.writeBooleanArray(new boolean[]{isStarting}); out.writeFloat(step); } public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() { public SavedState[] newArray(int size) { return new SavedState[size]; } @Override public SavedState createFromParcel(Parcel in) { return new SavedState(in); } }; private SavedState(Parcel in) { super(in); boolean[] b = null; in.readBooleanArray(b); if(b != null && b.length > 0) isStarting = b[0]; step = in.readFloat(); } } public void startScroll() { isStarting = true; invalidate(); } public void stopScroll() { isStarting = false; invalidate(); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); canvas.drawText(text, temp_view_plus_text_length - step, y, paint); if(!isStarting) { return; } step += 0.5;//0.5为文字滚动速度。 if(step > temp_view_plus_two_text_length) step = textLength; invalidate(); } @Override public void onClick(View v) { if(isStarting) stopScroll(); else startScroll(); }}public class CateAdapter extends RecyclerView.Adapter<CateAdapter.CateViewHolder>{ private LayoutInflater mLayoutInflater; private List<CategoryEntity> mCateDatas; private Context mContext; private OnItemClickListener mOnItemClickListener; public interface OnItemClickListener { void onItemClick(View view , int position); } public void setOnItemClickListener(OnItemClickListener onItemClickListener) { this.mOnItemClickListener = onItemClickListener; } public CateAdapter(Context context , List<CategoryEntity> data) { this.mContext = context; this.mCateDatas = data; mLayoutInflater = LayoutInflater.from(context); } @Override public CateViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = mLayoutInflater.inflate(R.layout.item_cate_layout , parent , false); CateViewHolder cateViewHolder = new CateViewHolder(view); return cateViewHolder; } @Override public void onBindViewHolder(CateViewHolder holder, int position) { holder.mCateName.setText(mCateDatas.get(position).getCateName()); holder.mCateImg.setImageResource(mCateDatas.get(position).getPicId()); setOnClickListener(holder); } private void setOnClickListener(final CateViewHolder holder) { if (mOnItemClickListener != null) { holder.itemView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { int layoutPosition = holder.getLayoutPosition(); mOnItemClickListener.onItemClick(holder.itemView , layoutPosition); } }); } } @Override public int getItemCount() { return mCateDatas.size(); } class CateViewHolder extends RecyclerView.ViewHolder { TextView mCateName; ImageView mCateImg; public CateViewHolder(View itemView) { super(itemView); mCateName = (TextView) itemView.findViewById(R.id.cate_name); mCateImg = (ImageView) itemView.findViewById(R.id.cate_img); } }}<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <corners android:radius="5dp"/> <solid android:color="@android:color/darker_gray"/></shape><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="10dp"> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:orientation="vertical"> <ImageView android:id="@+id/cate_img" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:src="@drawable/icon_favorite" /> <TextView android:id="@+id/cate_name" android:layout_marginTop="5dp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/cate_img" android:textColor="@android:color/black" android:layout_gravity="center_horizontal" android:textSize="12sp" android:text="@string/test_test"/> </LinearLayout></RelativeLayout><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content"> <android.support.v4.view.ViewPager android:id="@+id/viewPager" android:layout_width="match_parent" android:layout_height="190dp" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignBottom="@+id/viewPager" android:background="#55000000" android:gravity="center_horizontal" android:orientation="vertical" android:padding="3dp"> <TextView android:id="@+id/tv_img_desc" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="这里是广告标题" android:textColor="#ffffff" android:textSize="13sp" android:visibility="gone" />  <LinearLayout android:id="@+id/ll_dot_group" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" /> </LinearLayout></RelativeLayout><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <ScrollView android:layout_width="match_parent" android:layout_height="match_parent"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <wcb.com.mytestdemo.SliderImageLayout android:id="@+id/slider_layout" android:layout_width="match_parent" android:layout_height="wrap_content" /> <EditText android:id="@+id/search_view" android:layout_width="match_parent" android:layout_height="wrap_content" android:drawableLeft="@mipmap/icon_search" android:drawablePadding="6dp" android:background="@drawable/search_item_style" android:padding="10dp" android:layout_marginLeft="40dp" android:layout_marginRight="40dp" android:layout_marginTop="10dp" android:layout_centerHorizontal="true" android:hint="@string/search_text"/> <android.support.v7.widget.RecyclerView android:layout_width="match_parent" android:layout_centerHorizontal="true" android:paddingLeft="10dp" android:layout_height="wrap_content" android:id="@+id/cate_list_view" android:layout_below="@+id/slider_layout"> </android.support.v7.widget.RecyclerView> <wcb.com.mytestdemo.AutoScrollTextView android:id="@+id/auto_text" android:layout_width="match_parent" android:layout_height="wrap_content" android:textColor="#000" android:inputType="text" android:background="#EEE" android:textSize="16sp" android:layout_below="@+id/cate_list_view"/> </RelativeLayout> </ScrollView></LinearLayout>

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