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#add RecyclerWheelView use custom Annotation
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222 changes: 222 additions & 0 deletions
222
AppLibrary/src/main/java/danxx/library/widget/RecyclerWheelView.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 1,222 @@ | ||
| package danxx.library.widget; | ||
| import danxx.library.R; | ||
| import danxx.library.tools.UIUtils; | ||
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| import android.content.Context; | ||
| import android.graphics.Canvas; | ||
| import android.graphics.Color; | ||
| import android.graphics.Paint; | ||
| import android.support.annotation.Nullable; | ||
| import android.support.v7.widget.LinearLayoutManager; | ||
| import android.support.v7.widget.LinearSnapHelper; | ||
| import android.support.v7.widget.RecyclerView; | ||
| import android.util.AttributeSet; | ||
| import android.util.TypedValue; | ||
| import android.view.LayoutInflater; | ||
| import android.view.View; | ||
| import android.view.ViewGroup; | ||
| import android.widget.TextView; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| /** | ||
| * Created by dawish on 2017/8/9. | ||
| */ | ||
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| public class RecyclerWheelView extends RecyclerView { | ||
| public interface OnSelectListener { | ||
| void onSelect(int position); | ||
| } | ||
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| private ArrayList<String> mData; | ||
| private int mOffset = 2;//默认每页显示五条 | ||
| private float mItemHeight; | ||
| private int mWidth; | ||
| private LinearLayoutManager mManager; | ||
| private LinearSnapHelper mSnapHelper; | ||
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| private OnSelectListener mOnSelectListener; | ||
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| public RecyclerWheelView(Context context) { | ||
| super(context); | ||
| initData(); | ||
| } | ||
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| public RecyclerWheelView(Context context, @Nullable AttributeSet attrs) { | ||
| super(context, attrs); | ||
| initData(); | ||
| } | ||
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| public RecyclerWheelView(Context context, @Nullable AttributeSet attrs, int defStyle) { | ||
| super(context, attrs, defStyle); | ||
| initData(); | ||
| } | ||
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| private void initData() { | ||
| mData = new ArrayList<>(); | ||
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| mItemHeight = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 45, getResources().getDisplayMetrics()); | ||
| mManager = new LinearLayoutManager(getContext()); | ||
| mManager.setOrientation(LinearLayoutManager.VERTICAL); | ||
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| if (null == paint) { | ||
| paint = new Paint(); | ||
| paint.setColor(Color.parseColor("#83cde6")); | ||
| paint.setStrokeWidth(UIUtils.dp2px(getContext(), 1f)); | ||
| } | ||
| post(new Runnable() { | ||
| @Override | ||
| public void run() {//RecyclerView还未初始化完成不能直接调用其方法否则会报空指针，类构造方法中只能进行初始化成员变量 | ||
| getLayoutParams().height = (int) (mItemHeight * (mOffset * 2 1)); | ||
| setLayoutManager(mManager); | ||
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| setAdapter(new MySpaceAdapter()); | ||
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| getAdapter().notifyDataSetChanged(); | ||
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| mWidth = getWidth(); | ||
| } | ||
| }); | ||
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| mSnapHelper = new LinearSnapHelper(); | ||
| mSnapHelper.attachToRecyclerView(this); | ||
| } | ||
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| public ArrayList<String> getData() { | ||
| if (mData.size() < 1) { | ||
| return null; | ||
| } | ||
| ArrayList<String> data = new ArrayList<>(); | ||
| for (int i = 1; i < mData.size() - 1; i ) { | ||
| data.add(mData.get(i)); | ||
| } | ||
| return data; | ||
| } | ||
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| public void setData(ArrayList<String> data) { | ||
| this.mData.clear(); | ||
| this.mData.addAll(data); | ||
| mData.add(0, null); | ||
| mData.add(null); | ||
| if (getAdapter() != null) | ||
| getAdapter().notifyDataSetChanged(); | ||
| } | ||
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| private List<TextView> textViews; | ||
|
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| /** | ||
| * RecyclerView实现WheelView | ||
| */ | ||
| class MySpaceAdapter extends RecyclerView.Adapter { | ||
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| MySpaceAdapter() { | ||
| textViews = new ArrayList<>(); | ||
| } | ||
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| @Override | ||
| public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { | ||
| if (viewType == 1) { | ||
| return new SpaceViewHolder(new View(getContext())); | ||
| } else { | ||
| View view = LayoutInflater.from(getContext()).inflate(R.layout.item_recycler_wheel, parent, false); | ||
| textViews.add((TextView) view); | ||
| return new NormalViewHolder(view); | ||
| } | ||
| } | ||
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| @Override | ||
| public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) { | ||
| if (holder instanceof NormalViewHolder) { | ||
| TextView textView = ((NormalViewHolder) holder).mText; | ||
| textView.setText(mData.get(position)); | ||
| } | ||
| } | ||
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| @Override | ||
| public int getItemCount() { | ||
| return mData.size(); | ||
| } | ||
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| @Override | ||
| public int getItemViewType(int position) { | ||
| return (position == 0 || position == mData.size() - 1) ? 1 : 0; | ||
| } | ||
| } | ||
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| class NormalViewHolder extends RecyclerView.ViewHolder { | ||
| TextView mText; | ||
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| NormalViewHolder(View itemView) { | ||
| super(itemView); | ||
| mText = (TextView) itemView; | ||
| mText.getLayoutParams().height = (int) mItemHeight; | ||
| } | ||
| } | ||
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| class SpaceViewHolder extends RecyclerView.ViewHolder { | ||
| SpaceViewHolder(View itemView) { | ||
| super(itemView); | ||
| //根据每一条高度及偏移量设置高度 | ||
| float height = mOffset * mItemHeight; | ||
| itemView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, (int) height)); | ||
| } | ||
| } | ||
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| @Override | ||
| protected void onScrollChanged(int l, int t, int oldl, int oldt) { | ||
| super.onScrollChanged(l, t, oldl, oldt); | ||
| /** | ||
| * 手动滑动或者惯性滑动时触发该方法，不过由于本身没有滑动所以l,t,oldl,oldt都是0 | ||
| * 此处只是在滑动时设置相应状态 | ||
| */ | ||
| View viewContainer = mSnapHelper.findSnapView(mManager);//获取中间位置的view | ||
| TextView textView = ((NormalViewHolder) getChildViewHolder(viewContainer)).mText; | ||
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| int centerPosition = mData.indexOf(textView.getText().toString()); | ||
| if (mCenterPosition == centerPosition) { | ||
| return; | ||
| } | ||
| mCenterPosition = centerPosition; | ||
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| for (TextView view : textViews) {//设置选中颜色 | ||
| view.setTextColor(Color.parseColor("#dddddd")); | ||
| if (view == textView) { | ||
| view.setTextColor(Color.parseColor("#0288ce")); | ||
| } | ||
| } | ||
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| if (mOnSelectListener != null) { | ||
| //第一条是占位条 | ||
| mOnSelectListener.onSelect(mCenterPosition - 1); | ||
| } | ||
| } | ||
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| private int mCenterPosition;//获取选中位置时要减一（有占位条） | ||
| private Paint paint; | ||
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| /** | ||
| * 获取选中区域的边界 | ||
| */ | ||
| private int[] selectedAreaBorder; | ||
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| private int[] obtainSelectedAreaBorder() { | ||
| if (null == selectedAreaBorder) { | ||
| selectedAreaBorder = new int[2]; | ||
| selectedAreaBorder[0] = (int) (mItemHeight * mOffset); | ||
| selectedAreaBorder[1] = (int) (mItemHeight * (mOffset 1)); | ||
| } | ||
| return selectedAreaBorder; | ||
| } | ||
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| @Override | ||
| public void onDraw(Canvas c) { | ||
| super.onDraw(c); | ||
| c.drawLine(mWidth * 1.0F / 6, obtainSelectedAreaBorder()[0], mWidth * 5 / 6, obtainSelectedAreaBorder()[0], paint); | ||
| c.drawLine(mWidth * 1.0F / 6, obtainSelectedAreaBorder()[1], mWidth * 5 / 6, obtainSelectedAreaBorder()[1], paint); | ||
| } | ||
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| public void setmOnSelectListener(OnSelectListener mOnSelectListener) { | ||
| this.mOnSelectListener = mOnSelectListener; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 1,9 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <TextView xmlns:android="http://schemas.android.com/apk/res/android" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent" | ||
| android:textColor="#333333" | ||
| android:gravity="center" | ||
| android:textSize="22sp"> | ||
|
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| </TextView> |
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39 changes: 39 additions & 0 deletions
39
Channel2App/src/main/java/com/anno/ui/ActivityRecyclerWheelView.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 1,39 @@ | ||
| package com.anno.ui; | ||
|
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| import android.os.Bundle; | ||
| import android.support.annotation.Nullable; | ||
| import android.support.v7.app.AppCompatActivity; | ||
| import com.anno.R; | ||
| import com.anno.annotation.AnnotateUtils; | ||
| import com.anno.annotation.ViewInject; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
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| import danxx.library.widget.RecyclerWheelView; | ||
|
|
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| /** | ||
| * Created by dawish on 2017/8/9. | ||
| */ | ||
|
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| public class ActivityRecyclerWheelView extends AppCompatActivity { | ||
|
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| @ViewInject(R.id.recyclerWheelView) | ||
| RecyclerWheelView recyclerWheelView; | ||
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| @Override | ||
| protected void onCreate(@Nullable Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
| setContentView(R.layout.activity_recyclervheelview); | ||
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| AnnotateUtils.inject(ActivityRecyclerWheelView.this); | ||
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| ArrayList<String> data = new ArrayList<String>(); | ||
| for(int i=0;i<29;i ){ | ||
| data.add("data: " i); | ||
| } | ||
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| recyclerWheelView.setData(data); | ||
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| } | ||
| } |
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