一个android滑动的时间日期选择按钮

package jp.dip.sys1.android.drumpicker.lib; import java.util.ArrayList; import java.util.List; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Bitmap.Config; import android.graphics.Color; import android.graphics.LinearGradient; import android.graphics.Paint.Style; import android.graphics.Shader; import android.graphics.Canvas; import android.graphics.Paint; import android.util.AttributeSet; import android.util.Log; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.LinearLayout; import android.widget.TextView; public class DrumPicker extends FrameLayout{ private final static String TAG = DrumPicker.class.getSimpleName(); private final static int LAYOUT_ID = 255255; public interface OnPositionChangedListener{ public void onPositionChanged(int itemPos, int pos); } private OnPositionChangedListener mListener = null; private List<DrumPickerScrollView> mScrollViews = new ArrayList<DrumPickerScrollView>(); private int mCount = 0; private int mLensWidth = 0; LinearLayout mLayout; View mLens; public DrumPicker(Context context) { this(context, null); } public DrumPicker(Context context, AttributeSet attrs) { super(context, attrs); setWillNotDraw(false); mLayout = new LinearLayout(context, attrs); mLayout.setOrientation(LinearLayout.HORIZONTAL); mLayout.setGravity(Gravity.CENTER); LayoutParams params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); params.gravity = Gravity.CENTER; addView(mLayout, params); addLens(); } private void addLens(){ mLens = new View(getContext()){ @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); //canvas.drawColor(Color.BLUE); drawLens(this,canvas); } }; LayoutParams params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); params.gravity = Gravity.CENTER; addView(mLens, params); } public void setOnPostionChangedListener(OnPositionChangedListener listener){ mListener = listener; } /** * 列を追加する * @param params 選択項目 * @param width 列の幅 */ public void addRow(List<String> params, int width){ addRow(params.toArray(new String[]{}), width); } public void addRow(String[] params, int width) { addRow(params, width, params.length); } /** * 列を追加する。 * @param params * @param width */ public void addRow(String[] params, int width, int size) { //TODO サイズ周りが決め打ちなのでなんとかする final int count = mCount; mCount++; LinearLayout layout = createCover(); float scale = Util.getDisplayScale(getContext()); width *= scale; mLensWidth += width; int height = (int) (150 * scale); height += height%2; DrumPickerScrollView scroll = new DrumPickerScrollView(getContext(), (int)(50*Util.getDisplayScale(getContext()))); mScrollViews.add(scroll); scroll.setVerticalScrollBarEnabled(false); scroll.setFadingEdgeLength(0); scroll.setOnPositionChangedListener(new DrumPickerScrollView.OnPositionChangedListener() { @Override public void onPositionChenged(int pos) { if(mListener != null){ mListener.onPositionChanged(count, pos); } } }); LinearLayout linear = new LinearLayout(getContext()); linear.setOrientation(LinearLayout.VERTICAL); linear.setBackgroundColor(Color.WHITE); addTextView("", linear, -1); for(int i = 0; i < size; i++){ String text = params[i]; addTextView(text, linear, i); } addTextView("", linear, -2); linear.setId(LAYOUT_ID); scroll.addView(linear, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); FrameLayout frame = new FrameLayout(getContext()); frame.setPadding((int)(2*scale), 0, (int)(2*scale), 0); frame.addView(scroll, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); frame.addView(layout, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); mLayout.addView(frame, width, height); } private void addTextView(String text, ViewGroup layout, int id){ //TODO サイズとか TextView textView = new TextView(getContext()); textView = new TextView(getContext()); textView.setTextColor(Color.BLACK); textView.setTextSize(30); textView.setGravity(Gravity.CENTER); textView.setText(text); textView.setId(id); LayoutParams p =new LayoutParams(LayoutParams.FILL_PARENT, (int)(50*Util.getDisplayScale(getContext()))); layout.addView(textView, p); } /** * 表面の影とか * @return */ private LinearLayout createCover() { LinearLayout layout = new LinearLayout(getContext()) { private Paint paint = new Paint(); private Bitmap shade; @Override protected void onDraw(Canvas canvas) { if (getWidth() > 0 && getHeight() > 0) { if (shade == null) { float scale = Util.getDisplayScale(getContext()); shade = Bitmap.createBitmap(getWidth(), getHeight(), Config.ARGB_8888); Canvas c = new Canvas(shade); //上下の影 Shader s = new LinearGradient(0, 0, 0, (60*scale), Color.BLACK, Color.TRANSPARENT, Shader.TileMode.CLAMP); paint.setShader(s); c.drawRect(0,0,shade.getWidth(), shade.getHeight(), paint); c.rotate(180, shade.getWidth()/2, shade.getHeight()/2); c.drawRect(0,0,shade.getWidth(), shade.getHeight(), paint); //枠 Paint stroke = new Paint(); stroke.setColor(Color.DKGRAY); stroke.setStrokeWidth(4); stroke.setStyle(Style.STROKE); stroke.setAlpha(100); c.drawRect(2, 2, shade.getWidth()-2, shade.getHeight()-2, stroke); c.rotate(180, shade.getWidth()/2, shade.getHeight()/2); //drawLens(this, c); } canvas.drawBitmap(shade, 0, 0, paint); } } }; layout.setWillNotDraw(false); return layout; } Bitmap mLensBitmap = null; private void drawLens(View view, Canvas canvas){ //レンズ //Bitmap lens = (Bitmap)view.getTag(); if(mLensBitmap == null && view.getWidth() > 0 && view.getHeight() > 0){ mLensBitmap = Bitmap.createBitmap(mLensWidth, view.getHeight()/4, Config.ARGB_8888); Canvas c = new Canvas(mLensBitmap); Log.d(TAG, "canvas size:" + view.getWidth() + "::" + (view.getHeight())); Log.d(TAG, "create bitmap:" + c.getWidth() + "::" + (c.getHeight())); Paint paint = new Paint(); paint.setColor(Color.GRAY); paint.setStyle(Style.STROKE); paint.setStrokeWidth(2); paint.setAlpha(180); c.drawLine(0,1,mLensBitmap.getWidth(), 1, paint); c.drawLine(0,mLensBitmap.getHeight()-1,mLensBitmap.getWidth(), mLensBitmap.getHeight()-1, paint); paint.setColor(Color.argb(110, 195, 205, 225)); paint.setStyle(Style.FILL); c.drawRect(0,1,mLensBitmap.getWidth(), mLensBitmap.getHeight()-1, paint); c.drawRect(0,1 + mLensBitmap.getHeight()/2,mLensBitmap.getWidth(), mLensBitmap.getHeight()-1, paint); } if(mLensBitmap != null){ canvas.drawBitmap(mLensBitmap, view.getWidth()/2-mLensWidth/2, view.getHeight()/2-mLensBitmap.getHeight()/2, null); } } /** * 行の位置をセットする * @param itemPos 列 * @param pos 行 */ public void setPosition(int itemPos, int pos){ if(itemPos >= 0 && mScrollViews.size() > itemPos){ Log.d(TAG, "setPosition!"); DrumPickerScrollView scroll = mScrollViews.get(itemPos); scroll.setPosition(pos); invalidate(); } else{ Log.d(TAG, "setPosition! error:" + itemPos + "::" + mScrollViews.size()); } } public int getCount(int itemPos){ if(itemPos >= 0 && mScrollViews.size() > itemPos){ DrumPickerScrollView scroll = mScrollViews.get(itemPos); LinearLayout layout = (LinearLayout)scroll.findViewById(DrumPicker.LAYOUT_ID); return layout.getChildCount(); } return -1; } public void resize(int itemPos, IsGoneListener l){ DrumPickerScrollView scroll = mScrollViews.get(itemPos); LinearLayout layout = (LinearLayout)scroll.findViewById(LAYOUT_ID); int count = 0; for(int i = 0; i < layout.getChildCoun