diff --git a/res/layout/activity_main.xml b/res/layout/activity_main.xml
index 9ec5f44..1619a7b 100644
--- a/res/layout/activity_main.xml
+++ b/res/layout/activity_main.xml
@@ -1,46 +1,151 @@
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ android:background="#000000">
+ android:layout_centerHorizontal="true"
+ android:layout_marginTop="15dp"
+ android:background="#ffffff"
+ android:padding="15dp">
-
+
+
+
+
+
+
+
+
+
+
-
+ android:layout_below="@id/rl_time"
+ android:layout_centerHorizontal="true"
+ android:gravity="center">
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ android:id="@+id/pv_value"
+ android:layout_width="match_parent"
+ android:layout_height="60dp"
+ android:layout_marginTop="15dp"
+ />
-
+
+
+
-
+ android:layout_gravity="center"
+ android:gravity="center">
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 4ffaa7d..3f30e62 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1,8 +1,29 @@
-
+
TimerPicker
Settings
Hello world!
+ 横向的选择器
+ 纵向的选择器
+ 循环：
+ 是
+ 否
+ 分
+ 秒
+
+ 克
+ 碗
+ 勺
+ 粒
+
+
+ - @string/gram
+ - @string/bowl
+ - @string/scoop
+ - @string/granule
+ - @string/minute
+ - @string/second
+
diff --git a/src/com/jingchen/timerpicker/MainActivity.java b/src/com/jingchen/timerpicker/MainActivity.java
index e89d956..4aad031 100644
--- a/src/com/jingchen/timerpicker/MainActivity.java
+++ b/src/com/jingchen/timerpicker/MainActivity.java
@@ -1,74 +1,152 @@
package com.jingchen.timerpicker;
-import java.util.ArrayList;
-import java.util.List;
-
import android.app.Activity;
import android.os.Bundle;
-import android.view.Menu;
+import android.widget.RadioButton;
+import android.widget.RadioGroup;
import android.widget.Toast;
-import com.jingchen.timerpicker.PickerView.onSelectListener;
+import java.util.ArrayList;
+import java.util.List;
/**
* 更多详解见博客http://blog.csdn.net/zhongkejingwang/article/details/38513301
- *
+ *
* @author chenjing
- *
*/
-public class MainActivity extends Activity
-{
-
- PickerView minute_pv;
- PickerView second_pv;
-
- @Override
- protected void onCreate(Bundle savedInstanceState)
- {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- minute_pv = (PickerView) findViewById(R.id.minute_pv);
- second_pv = (PickerView) findViewById(R.id.second_pv);
- List data = new ArrayList();
- List seconds = new ArrayList();
- for (int i = 0; i < 10; i++)
- {
- data.add("0" + i);
- }
- for (int i = 0; i < 60; i++)
- {
- seconds.add(i < 10 ? "0" + i : "" + i);
- }
- minute_pv.setData(data);
- minute_pv.setOnSelectListener(new onSelectListener()
- {
-
- @Override
- public void onSelect(String text)
- {
- Toast.makeText(MainActivity.this, "选择了 " + text + " 分",
- Toast.LENGTH_SHORT).show();
- }
- });
- second_pv.setData(seconds);
- second_pv.setOnSelectListener(new onSelectListener()
- {
-
- @Override
- public void onSelect(String text)
- {
- Toast.makeText(MainActivity.this, "选择了 " + text + " 秒",
- Toast.LENGTH_SHORT).show();
- }
- });
- minute_pv.setSelected(0);
- }
-
- @Override
- public boolean onCreateOptionsMenu(Menu menu)
- {
- getMenuInflater().inflate(R.menu.main, menu);
- return true;
- }
+public class MainActivity extends Activity implements RadioGroup.OnCheckedChangeListener {
+
+ private PickerView minute_pv;
+ private PickerView second_pv;
+
+ private PickerView value_pv;//值
+ private PickerView unit_pv;//单位
+
+ private String currentValue, currentUnit;
+
+ private RadioGroup vRepeat, hRepeat;
+ private RadioButton vpYes, hpYes, vpNo, hpNo;
+ private UnitEmun currentUnitEmun;
+ private List values, units;
+
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+ initView();
+ showVerticalData();
+ showHorizontalData();
+ }
+
+ private void showHorizontalData() {
+ values = new ArrayList();
+ units = new ArrayList();
+ String [] us=getResources().getStringArray(R.array.units);
+ for (int i=0;i data = new ArrayList();
+ List seconds = new ArrayList();
+ for (int i = 0; i < 10; i++) {
+ data.add("0" + i);
+ }
+ for (int i = 0; i < 60; i++) {
+ seconds.add(i < 10 ? "0" + i : "" + i);
+ }
+ minute_pv.setIsRepeat(true);
+ minute_pv.setIsHorizontal(false);
+ minute_pv.setData(data);
+ minute_pv.setOnSelectListener(new PickerView.onSelectListener() {
+ @Override
+ public void onSelect(int currentSelected) {
+ Toast.makeText(MainActivity.this, "选择了 " + minute_pv.getCurrentValue() + " 分", Toast.LENGTH_SHORT).show();
+ }
+ });
+ second_pv.setIsRepeat(true);
+ second_pv.setIsHorizontal(false);
+ second_pv.setData(seconds);
+ second_pv.setOnSelectListener(new PickerView.onSelectListener() {
+ @Override
+ public void onSelect(int currentSelected) {
+ Toast.makeText(MainActivity.this, "选择了 " + second_pv.getCurrentValue() + " 秒", Toast.LENGTH_SHORT).show();
+ }
+ });
+ minute_pv.setSelected(0);
+ }
+
+ private void initView() {
+ minute_pv = (PickerView) findViewById(R.id.minute_pv);
+ second_pv = (PickerView) findViewById(R.id.second_pv);
+ value_pv = (PickerView) findViewById(R.id.pv_value);
+ unit_pv = (PickerView) findViewById(R.id.pv_unit);
+
+ vRepeat = (RadioGroup) findViewById(R.id.rg_v_repeat);
+ hRepeat = (RadioGroup) findViewById(R.id.rg_h_repeat);
+
+ vpYes = (RadioButton) findViewById(R.id.rb_v_yes);
+ hpYes = (RadioButton) findViewById(R.id.rb_h_yes);
+ vpNo = (RadioButton) findViewById(R.id.rb_v_no);
+ hpNo = (RadioButton) findViewById(R.id.rb_h_no);
+
+ vRepeat.setOnCheckedChangeListener(this);
+ hRepeat.setOnCheckedChangeListener(this);
+ }
+ @Override
+ public void onCheckedChanged(RadioGroup radioGroup, int i) {
+ switch (i) {
+ case R.id.rb_v_yes://纵向重复
+ minute_pv.setIsRepeat(true);
+ second_pv.setIsRepeat(true);
+ break;
+ case R.id.rb_v_no://纵向不重复
+ minute_pv.setIsRepeat(false);
+ second_pv.setIsRepeat(false);
+ break;
+ case R.id.rb_h_yes://横向重复
+ value_pv.setIsRepeat(true);
+ unit_pv.setIsRepeat(true);
+ break;
+ case R.id.rb_h_no://横向不重复
+ value_pv.setIsRepeat(false);
+ unit_pv.setIsRepeat(false);
+ break;
+ }
+ }
}
diff --git a/src/com/jingchen/timerpicker/PickerView.java b/src/com/jingchen/timerpicker/PickerView.java
index 79c8bb9..28f795d 100644
--- a/src/com/jingchen/timerpicker/PickerView.java
+++ b/src/com/jingchen/timerpicker/PickerView.java
@@ -1,10 +1,5 @@
package com.jingchen.timerpicker;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Timer;
-import java.util.TimerTask;
-
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
@@ -17,340 +12,390 @@
import android.view.MotionEvent;
import android.view.View;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Timer;
+import java.util.TimerTask;
+
/**
* 滚动选择器 更多详解见博客http://blog.csdn.net/zhongkejingwang/article/details/38513301
- *
+ *
* @author chenjing
- *
*/
-public class PickerView extends View
-{
-
- public static final String TAG = "PickerView";
- /**
- * text之间间距和minTextSize之比
- */
- public static final float MARGIN_ALPHA = 2.8f;
- /**
- * 自动回滚到中间的速度
- */
- public static final float SPEED = 2;
-
- private List mDataList;
- /**
- * 选中的位置，这个位置是mDataList的中心位置，一直不变
- */
- private int mCurrentSelected;
- private Paint mPaint;
-
- private float mMaxTextSize = 80;
- private float mMinTextSize = 40;
-
- private float mMaxTextAlpha = 255;
- private float mMinTextAlpha = 120;
-
- private int mColorText = 0x333333;
-
- private int mViewHeight;
- private int mViewWidth;
-
- private float mLastDownY;
- /**
- * 滑动的距离
- */
- private float mMoveLen = 0;
- private boolean isInit = false;
- private onSelectListener mSelectListener;
- private Timer timer;
- private MyTimerTask mTask;
-
- Handler updateHandler = new Handler()
- {
-
- @Override
- public void handleMessage(Message msg)
- {
- if (Math.abs(mMoveLen) < SPEED)
- {
- mMoveLen = 0;
- if (mTask != null)
- {
- mTask.cancel();
- mTask = null;
- performSelect();
- }
- } else
- // 这里mMoveLen / Math.abs(mMoveLen)是为了保有mMoveLen的正负号，以实现上滚或下滚
- mMoveLen = mMoveLen - mMoveLen / Math.abs(mMoveLen) * SPEED;
- invalidate();
- }
-
- };
-
- public PickerView(Context context)
- {
- super(context);
- init();
- }
-
- public PickerView(Context context, AttributeSet attrs)
- {
- super(context, attrs);
- init();
- }
-
- public void setOnSelectListener(onSelectListener listener)
- {
- mSelectListener = listener;
- }
-
- private void performSelect()
- {
- if (mSelectListener != null)
- mSelectListener.onSelect(mDataList.get(mCurrentSelected));
- }
-
- public void setData(List datas)
- {
- mDataList = datas;
- mCurrentSelected = datas.size() / 2;
- invalidate();
- }
-
- /**
- * 选择选中的item的index
- *
- * @param selected
- */
- public void setSelected(int selected)
- {
- mCurrentSelected = selected;
- int distance = mDataList.size() / 2 - mCurrentSelected;
- if (distance < 0)
- for (int i = 0; i < -distance; i++)
- {
- moveHeadToTail();
- mCurrentSelected--;
- }
- else if (distance > 0)
- for (int i = 0; i < distance; i++)
- {
- moveTailToHead();
- mCurrentSelected++;
- }
- invalidate();
- }
-
- /**
- * 选择选中的内容
- *
- * @param mSelectItem
- */
- public void setSelected(String mSelectItem)
- {
- for (int i = 0; i < mDataList.size(); i++)
- if (mDataList.get(i).equals(mSelectItem))
- {
- setSelected(i);
- break;
- }
- }
-
- private void moveHeadToTail()
- {
- String head = mDataList.get(0);
- mDataList.remove(0);
- mDataList.add(head);
- }
-
- private void moveTailToHead()
- {
- String tail = mDataList.get(mDataList.size() - 1);
- mDataList.remove(mDataList.size() - 1);
- mDataList.add(0, tail);
- }
-
- @Override
- protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
- {
- super.onMeasure(widthMeasureSpec, heightMeasureSpec);
- mViewHeight = getMeasuredHeight();
- mViewWidth = getMeasuredWidth();
- // 按照View的高度计算字体大小
- mMaxTextSize = mViewHeight / 4.0f;
- mMinTextSize = mMaxTextSize / 2f;
- isInit = true;
- invalidate();
- }
-
- private void init()
- {
- timer = new Timer();
- mDataList = new ArrayList();
- mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
- mPaint.setStyle(Style.FILL);
- mPaint.setTextAlign(Align.CENTER);
- mPaint.setColor(mColorText);
- }
-
- @Override
- protected void onDraw(Canvas canvas)
- {
- super.onDraw(canvas);
- // 根据index绘制view
- if (isInit)
- drawData(canvas);
- }
-
- private void drawData(Canvas canvas)
- {
- // 先绘制选中的text再往上往下绘制其余的text
- float scale = parabola(mViewHeight / 4.0f, mMoveLen);
- float size = (mMaxTextSize - mMinTextSize) * scale + mMinTextSize;
- mPaint.setTextSize(size);
- mPaint.setAlpha((int) ((mMaxTextAlpha - mMinTextAlpha) * scale + mMinTextAlpha));
- // text居中绘制，注意baseline的计算才能达到居中，y值是text中心坐标
- float x = (float) (mViewWidth / 2.0);
- float y = (float) (mViewHeight / 2.0 + mMoveLen);
- FontMetricsInt fmi = mPaint.getFontMetricsInt();
- float baseline = (float) (y - (fmi.bottom / 2.0 + fmi.top / 2.0));
-
- canvas.drawText(mDataList.get(mCurrentSelected), x, baseline, mPaint);
- // 绘制上方data
- for (int i = 1; (mCurrentSelected - i) >= 0; i++)
- {
- drawOtherText(canvas, i, -1);
- }
- // 绘制下方data
- for (int i = 1; (mCurrentSelected + i) < mDataList.size(); i++)
- {
- drawOtherText(canvas, i, 1);
- }
-
- }
-
- /**
- * @param canvas
- * @param position
- * 距离mCurrentSelected的差值
- * @param type
- * 1表示向下绘制，-1表示向上绘制
- */
- private void drawOtherText(Canvas canvas, int position, int type)
- {
- float d = (float) (MARGIN_ALPHA * mMinTextSize * position + type
- * mMoveLen);
- float scale = parabola(mViewHeight / 4.0f, d);
- float size = (mMaxTextSize - mMinTextSize) * scale + mMinTextSize;
- mPaint.setTextSize(size);
- mPaint.setAlpha((int) ((mMaxTextAlpha - mMinTextAlpha) * scale + mMinTextAlpha));
- float y = (float) (mViewHeight / 2.0 + type * d);
- FontMetricsInt fmi = mPaint.getFontMetricsInt();
- float baseline = (float) (y - (fmi.bottom / 2.0 + fmi.top / 2.0));
- canvas.drawText(mDataList.get(mCurrentSelected + type * position),
- (float) (mViewWidth / 2.0), baseline, mPaint);
- }
-
- /**
- * 抛物线
- *
- * @param zero
- * 零点坐标
- * @param x
- * 偏移量
- * @return scale
- */
- private float parabola(float zero, float x)
- {
- float f = (float) (1 - Math.pow(x / zero, 2));
- return f < 0 ? 0 : f;
- }
-
- @Override
- public boolean onTouchEvent(MotionEvent event)
- {
- switch (event.getActionMasked())
- {
- case MotionEvent.ACTION_DOWN:
- doDown(event);
- break;
- case MotionEvent.ACTION_MOVE:
- doMove(event);
- break;
- case MotionEvent.ACTION_UP:
- doUp(event);
- break;
- }
- return true;
- }
-
- private void doDown(MotionEvent event)
- {
- if (mTask != null)
- {
- mTask.cancel();
- mTask = null;
- }
- mLastDownY = event.getY();
- }
-
- private void doMove(MotionEvent event)
- {
-
- mMoveLen += (event.getY() - mLastDownY);
-
- if (mMoveLen > MARGIN_ALPHA * mMinTextSize / 2)
- {
- // 往下滑超过离开距离
- moveTailToHead();
- mMoveLen = mMoveLen - MARGIN_ALPHA * mMinTextSize;
- } else if (mMoveLen < -MARGIN_ALPHA * mMinTextSize / 2)
- {
- // 往上滑超过离开距离
- moveHeadToTail();
- mMoveLen = mMoveLen + MARGIN_ALPHA * mMinTextSize;
- }
-
- mLastDownY = event.getY();
- invalidate();
- }
-
- private void doUp(MotionEvent event)
- {
- // 抬起手后mCurrentSelected的位置由当前位置move到中间选中位置
- if (Math.abs(mMoveLen) < 0.0001)
- {
- mMoveLen = 0;
- return;
- }
- if (mTask != null)
- {
- mTask.cancel();
- mTask = null;
- }
- mTask = new MyTimerTask(updateHandler);
- timer.schedule(mTask, 0, 10);
- }
-
- class MyTimerTask extends TimerTask
- {
- Handler handler;
-
- public MyTimerTask(Handler handler)
- {
- this.handler = handler;
- }
-
- @Override
- public void run()
- {
- handler.sendMessage(handler.obtainMessage());
- }
-
- }
-
- public interface onSelectListener
- {
- void onSelect(String text);
- }
+public class PickerView extends View {
+
+ public static final String TAG = "PickerView";
+ /**
+ * text之间间距和minTextSize之比
+ */
+ public static final float MARGIN_ALPHA = 3.8f;
+ /**
+ * 自动回滚到中间的速度
+ */
+ public static final float SPEED = 2;
+
+ private List mDataList;
+ /**
+ * 选中的位置，这个位置是mDataList的中心位置，一直不变
+ */
+ private int mCurrentSelected;
+ private Paint mPaint;
+
+ private float mMaxTextSize = 80;
+ private float mMinTextSize = 40;
+
+ private float mMaxTextAlpha = 255;
+ private float mMinTextAlpha = 120;
+
+ private int mColorText = 0x333333;
+
+ private int mViewHeight;
+ private int mViewWidth;
+
+ private float mLastDownY, mLastDownX;
+ /**
+ * 滑动的距离
+ */
+ private float mMoveLen = 0;
+ private float moveDistance = 0;
+ private boolean isInit = false;
+ private onSelectListener mSelectListener;
+ private Timer timer;
+ private MyTimerTask mTask;
+
+ private boolean isHorizontal;//是否是横向
+ private boolean isRepeat;//是否是循环滚动
+
+ private float zero;//零点坐标
+
+ private float x, y;//绘制文本时的起始位置
+ private FontMetricsInt fmi;
+ private float offset;//偏移量
+ private float scale;//刻度
+ private float textSize;//绘制的字体大小
+
+
+ Handler updateHandler = new Handler() {
+
+ @Override
+ public void handleMessage(Message msg) {
+ if (Math.abs(mMoveLen) < SPEED) {
+ mMoveLen = 0;
+ if (mTask != null) {
+ mTask.cancel();
+ mTask = null;
+ performSelect();
+ }
+ } else
+ // 这里mMoveLen / Math.abs(mMoveLen)是为了保有mMoveLen的正负号，以实现上滚或下滚
+ mMoveLen = mMoveLen - mMoveLen / Math.abs(mMoveLen) * SPEED;
+ invalidate();
+ }
+
+ };
+
+ public PickerView(Context context) {
+ super(context);
+ init();
+ }
+
+ public PickerView(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ init();
+ }
+
+ public void setOnSelectListener(onSelectListener listener) {
+ mSelectListener = listener;
+ }
+
+ private void performSelect() {
+ if (mSelectListener != null)
+ mSelectListener.onSelect(mCurrentSelected);
+ }
+
+ public void setData(List datas) {
+ mDataList = datas;
+ mCurrentSelected = datas.size() / 2;
+ invalidate();
+ }
+
+ /**
+ * 设置数据
+ * @param datas 数据
+ * @param currentSelectedValue 当前选中的值
+ */
+ public void setData(List datas, String currentSelectedValue) {
+ mDataList = datas;
+ mCurrentSelected = findIndexByValue(currentSelectedValue);
+ invalidate();
+ }
+
+ private int findIndexByValue(String value) {
+ for (int i = 0; i < mDataList.size(); i++) {
+ if (mDataList.get(i).equals(value)) {
+ return i;
+ }
+ }
+ return mDataList.size() / 2;
+ }
+
+ /**
+ * 选择选中的item的index
+ *
+ * @param selected
+ */
+ public void setSelected(int selected) {
+ mCurrentSelected = selected;
+ int distance = mDataList.size() / 2 - mCurrentSelected;
+ if (distance < 0)
+ for (int i = 0; i < -distance; i++) {
+ moveHeadToTail();
+ mCurrentSelected--;
+ }
+ else if (distance > 0)
+ for (int i = 0; i < distance; i++) {
+ moveTailToHead();
+ mCurrentSelected++;
+ }
+ invalidate();
+ }
+
+ public void setIsHorizontal(boolean isHorizontal) {
+ this.isHorizontal = isHorizontal;
+ }
+
+ public void setIsRepeat(boolean isRepeat) {
+ this.isRepeat = isRepeat;
+ }
+
+ /**
+ * 选择选中的内容
+ *
+ * @param mSelectItem
+ */
+ public void setSelected(String mSelectItem) {
+ for (int i = 0; i < mDataList.size(); i++)
+ if (mDataList.get(i).equals(mSelectItem)) {
+ setSelected(i);
+ break;
+ }
+ }
+
+ private void moveHeadToTail() {
+ if (isRepeat) {
+ String head = mDataList.get(0);
+ mDataList.remove(0);
+ mDataList.add(head);
+ } else {
+ mCurrentSelected++;
+ if (mCurrentSelected >= mDataList.size()) {
+ mCurrentSelected = mDataList.size() - 1;
+ }
+ }
+ }
+
+ private void moveTailToHead() {
+ if (isRepeat) {
+ String tail = mDataList.get(mDataList.size() - 1);
+ mDataList.remove(mDataList.size() - 1);
+ mDataList.add(0, tail);
+ } else {
+ mCurrentSelected--;
+ if (mCurrentSelected <= 0) {
+ mCurrentSelected = 0;
+ }
+ }
+ }
+
+ @Override
+ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+ super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+ mViewHeight = getMeasuredHeight();
+ mViewWidth = getMeasuredWidth();
+
+ // 按照View的高度计算字体大小
+// if (isHorizontal) {
+// mMaxTextSize = mViewHeight / 4.0f;
+// mMinTextSize = mMaxTextSize / 2f;
+// } else {
+// mMaxTextSize = mViewHeight / 4.0f;
+// mMinTextSize = mMaxTextSize / 2f;
+// }
+ isInit = true;
+ invalidate();
+ }
+
+ private void init() {
+ timer = new Timer();
+ mDataList = new ArrayList();
+ mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+ mPaint.setStyle(Style.FILL);
+ mPaint.setTextAlign(Align.CENTER);
+ mPaint.setColor(mColorText);
+ }
+
+ @Override
+ protected void onDraw(Canvas canvas) {
+ super.onDraw(canvas);
+ // 根据index绘制view
+ if (isInit && mCurrentSelected < mDataList.size()) {
+ //如果不加mCurrentSelected= 0; i++) {
+ drawOtherText(canvas, i, -1);
+ }
+ // 绘制下方data
+ for (int i = 1; (mCurrentSelected + i) < mDataList.size(); i++) {
+ drawOtherText(canvas, i, 1);
+ }
+ }
+
+ private void drawSelectedText(Canvas canvas) {
+ scale = parabola(mMoveLen);
+ setPaint();
+ calculateXY(mMoveLen);
+ canvas.drawText(mDataList.get(mCurrentSelected), x, y, mPaint);
+ }
+
+ private void setPaint() {
+ textSize = (mMaxTextSize - mMinTextSize) * scale + mMinTextSize;
+ mPaint.setTextSize(textSize);
+ mPaint.setAlpha((int) ((mMaxTextAlpha - mMinTextAlpha) * scale + mMinTextAlpha));
+ }
+
+ /**
+ * @param canvas
+ * @param position 距离mCurrentSelected的差值
+ * @param type 1表示向下绘制，-1表示向上绘制
+ */
+ private void drawOtherText(Canvas canvas, int position, int type) {
+ offset = (MARGIN_ALPHA * mMinTextSize * position + type * mMoveLen);
+ scale = parabola(offset);
+ setPaint();
+ calculateXY(type * offset);
+ canvas.drawText(mDataList.get(mCurrentSelected + type * position), x, y, mPaint);
+ }
+
+ private void calculateXY(float offset) {
+ // text居中绘制，注意baseline的计算才能达到居中，y值是text中心坐标
+ if (isHorizontal) {
+ x = (float) (mViewWidth / 2.0 + offset);
+ y = (float) (mViewHeight / 2.0) + 25;
+ } else {
+ x = (float) (mViewWidth / 2.0);
+ y = (float) (mViewHeight / 2.0 + offset);
+ fmi = mPaint.getFontMetricsInt();
+ y = (float) (y - (fmi.bottom / 2.0 + fmi.top / 2.0));
+ }
+ }
+
+ /**
+ * 抛物线
+ *
+ * @param offset 偏移量
+ * @return scale
+ */
+ private float parabola(float offset) {
+ zero = (isHorizontal ? mViewWidth : mViewHeight) / 8.0f;
+ offset = (float) (1 - Math.pow(offset / zero, 2));
+ return offset < 0 ? 0 : offset;
+ }
+
+ @Override
+ public boolean onTouchEvent(MotionEvent event) {
+ switch (event.getActionMasked()) {
+ case MotionEvent.ACTION_DOWN:
+ doDown(event);
+ break;
+ case MotionEvent.ACTION_MOVE:
+ doMove(event);
+ break;
+ case MotionEvent.ACTION_UP:
+ doUp(event);
+ break;
+ }
+ return true;
+ }
+
+ private void doDown(MotionEvent event) {
+ if (mTask != null) {
+ mTask.cancel();
+ mTask = null;
+ }
+ mLastDownY = event.getY();
+ mLastDownX = event.getX();
+ }
+
+ private void doMove(MotionEvent event) {
+ if (isHorizontal) {
+ moveDistance = event.getX() - mLastDownX;
+ } else {
+ moveDistance = event.getY() - mLastDownY;
+ }
+ if (!isRepeat) {//不是重复的话，在滚动的两边的时候，就不在滚动，重新进行绘制了
+ if (mCurrentSelected == 0 && moveDistance > 0) {
+ return;
+ }
+ if (moveDistance < 0 && mCurrentSelected == mDataList.size() - 1) {
+ return;
+ }
+ }
+ mMoveLen += moveDistance;
+ if (mMoveLen > MARGIN_ALPHA * mMinTextSize / 2) {
+ // 往右滑超过离开距离
+ moveTailToHead();
+ mMoveLen = mMoveLen - MARGIN_ALPHA * mMinTextSize;
+ } else if (mMoveLen < -MARGIN_ALPHA * mMinTextSize / 2) {
+ // 往左滑超过离开距离
+ moveHeadToTail();
+ mMoveLen = mMoveLen + MARGIN_ALPHA * mMinTextSize;
+ }
+ mLastDownX = event.getX();
+ mLastDownY = event.getY();
+ invalidate();
+ }
+
+ private void doUp(MotionEvent event) {
+ // 抬起手后mCurrentSelected的位置由当前位置move到中间选中位置
+ if (Math.abs(mMoveLen) < 0.0001) {
+ mMoveLen = 0;
+ return;
+ }
+ if (mTask != null) {
+ mTask.cancel();
+ mTask = null;
+ }
+ mTask = new MyTimerTask(updateHandler);
+ timer.schedule(mTask, 0, 10);
+ }
+
+ class MyTimerTask extends TimerTask {
+ Handler handler;
+
+ public MyTimerTask(Handler handler) {
+ this.handler = handler;
+ }
+
+ @Override
+ public void run() {
+ handler.sendMessage(handler.obtainMessage());
+ }
+
+ }
+
+ public interface onSelectListener {
+ void onSelect(int currentSelected);
+ }
+
+ public String getCurrentValue() {
+ return mDataList.get(mCurrentSelected);
+ }
}
diff --git a/src/com/jingchen/timerpicker/UnitEmun.java b/src/com/jingchen/timerpicker/UnitEmun.java
new file mode 100644
index 0000000..c29fdea
--- /dev/null
+++ b/src/com/jingchen/timerpicker/UnitEmun.java
@@ -0,0 +1,66 @@
+package com.jingchen.timerpicker;
+
+import android.content.Context;
+
+/**
+ * Created by hoyouly on 16/2/26.
+ */
+public enum UnitEmun {
+ UNIT_KE(0, R.string.gram, 10, 10, 20),//克
+ UNIT_BOWL(1, R.string.bowl, 1, 1, 20),//碗
+ UNIT_SCOOP(2, R.string.scoop, 1, 2, 20),//勺
+ UNIT_MINUTE(3, R.string.minute, 1, 5, 20),//分
+ UNIT_SECOND(4, R.string.second, 1, 60, 20),//秒
+ UNIT_GRANULE(5, R.string.granule, 1, 1, 20);//粒
+
+ private int id;
+ private int nameResId;//单位的资源id
+ private int start;//起始位置
+ private int increment;//单位间隔
+ private int length;//长度
+
+ UnitEmun(int id, int nameResId, int start, int increment, int length) {
+ this.id = id;
+ this.nameResId = nameResId;
+ this.start = start;
+ this.increment = increment;
+ this.length = length;
+ }
+
+ public int getLength() {
+ return length;
+ }
+
+ public int getId() {
+ return id;
+ }
+
+ public int getStart() {
+ return start;
+ }
+
+ public int getIncrement() {
+ return increment;
+ }
+
+ public int getNameResId() {
+ return nameResId;
+ }
+
+ public static UnitEmun getUnitEmun(Context context, String name) {
+ if (context.getResources().getString(UNIT_KE.getNameResId()).equals(name)) {
+ return UNIT_KE;
+ } else if (context.getResources().getString(UNIT_BOWL.getNameResId()).equals(name)) {
+ return UNIT_BOWL;
+ } else if (context.getResources().getString(UNIT_SCOOP.getNameResId()).equals(name)) {
+ return UNIT_SCOOP;
+ } else if (context.getResources().getString(UNIT_GRANULE.getNameResId()).equals(name)) {
+ return UNIT_GRANULE;
+ } else if (context.getResources().getString(UNIT_MINUTE.getNameResId()).equals(name)) {
+ return UNIT_MINUTE;
+ } else if (context.getResources().getString(UNIT_SECOND.getNameResId()).equals(name)) {
+ return UNIT_SECOND;
+ }
+ return UNIT_BOWL;
+ }
+}