android调节系统音量
16lz
2022-04-02
1.效果图：
2.自定义的音量旋钮
<?xml version="1.0" encoding="utf-8"?> 3.图片资源mhs_seekbar_thumb.xml
<?xml version="1.0" encoding="utf-8"?> 4.创建一个attr：
<?xml version="1.0" encoding="utf-8"?> 5.创建一个color
<?xml version="1.0" encoding="utf-8"?> #3F51B5 #303F9F #FF4081 #FF0289ff #FF161616 #FF161616 #FFe0e0e0 #FF334456 #FF0289ff #FF2565c3 #FFbcb7b4 #FF88b6fb #FF0289ff #FFf6ff00 #FF161616 #FFFFFF 6.事件监听和功能调用
import android.media.AudioManager;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.KeyEvent;import android.widget.SeekBar;import android.widget.TextView;public class MainActivity extends AppCompatActivity { private AudioManager mAudioManager; private MCCP_SeekBar VS_MainValume; private int progress = 7; private TextView tv_valume; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_test); VS_MainValume = (MCCP_SeekBar) findViewById(R.id.id_mcl_seekbar_main_valume); tv_valume = (TextView)findViewById(R.id.id_b_valume); mAudioManager = (AudioManager) getSystemService(AUDIO_SERVICE); //系统最大音量为15 VS_MainValume.setProgressMax(mAudioManager.getStreamMaxVolume(mAudioManager.STREAM_MUSIC)); mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, progress, AudioManager.FLAG_SHOW_UI); VS_MainValume.setProgress(progress); tv_valume.setText(""+progress); VS_MainValume.setOnMCLSeekBarChangeListener(new MCCP_SeekBar.OnMCCP_SeekBarChangeListener() { @Override public void onProgressChanged(MCCP_SeekBar mcSeekBar, int progress, boolean fromUser) { MainActivity.this.progress = progress; tv_valume.setText(""+progress); mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, progress, AudioManager.FLAG_SHOW_UI); } }); } //手机音量+-按钮监听 @Override public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_VOLUME_DOWN: if (progress == 0) { progress = 0; return true; } --progress; mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, progress, AudioManager.FLAG_SHOW_UI); tv_valume.setText(""+progress); VS_MainValume.setProgress(progress); return true; case KeyEvent.KEYCODE_VOLUME_UP: if (progress == 15) { progress = 15; return true; } ++progress; mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, progress, AudioManager.FLAG_SHOW_UI); tv_valume.setText(""+progress); VS_MainValume.setProgress(progress); return true; } return super.onKeyDown(keyCode, event); }}8.最后，自定义的view类
package com.example.longshine.zname;import android.annotation.SuppressLint;import android.content.Context;import android.content.res.TypedArray;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Matrix;import android.graphics.Paint;import android.graphics.RectF;import android.graphics.SweepGradient;import android.graphics.drawable.Drawable;import android.os.Bundle;import android.os.Parcelable;import android.util.AttributeSet;import android.view.MotionEvent;import android.view.View;@SuppressLint("ClickableViewAccessibility")public class MCCP_SeekBar extends View { //private boolean DEBUG = true false ; private boolean DEBUG = false; private OnMCCP_SeekBarChangeListener mOnMCCP_SeekBarChangeListener; //保存状态 private static final String STATE_PARENT = "parent"; private static final String STATE_ANGLE = "angle"; //圆环paint对象 private Paint mColorOutsideWheelPaint;//外环 private Paint mColorWheelPaint; //seekbar背景 private Paint mColorWheelProgresPaint;//滑过的seekbar private Paint mColorInsideCirclePaint;//内圆 private Paint mColorThumbPaint;//内圆 private Paint mColorUnitPaint;//单位 private Paint mColorProgressPaint;//progress //圆环的宽度 private int mColorWheelStrokeWidth = 10; private int mColorWheelStrokeSBWidth = 30; private RectF mColorWheelRectangle = new RectF(); //private float mTranslationOffset; //thumb private Drawable mThumbDrawable = null; @SuppressWarnings("unused") private int mThumbHeight = 0; private int mThumbWidth = 0; private int[] mThumbNormal = null; private int[] mThumbPressed = null; @SuppressWarnings("unused") private float mThumbLeft = 0; @SuppressWarnings("unused") private float mThumbTop = 0; @SuppressWarnings("unused") private float[] Out_pointerPosition; @SuppressWarnings("unused") private float[] In_pointerPosition; private float[] thumb_pointerPosition; private int mSeekBarCenterX = 0; private int mSeekBarCenterY = 0; private float mSeekBarSizeH = 0; private float mSeekBarArcRadius = 0; //外圆弧半径 private float mSeekBarOutsideRadius = 0;//外环半径 private float mSeekBarIntsideRadius = 0;//内环半径 private float mSeekBarThumbRadius = 0; //Thumb所在半径 @SuppressWarnings("unused") private float mSeekBarRadius = 0;//seekbar半径 @SuppressWarnings("unused") private int mlinelong = 0;//seekbar progress 上的线的长度 private int mthumbRadius = 0;//thumb半径 //private int mSeekBarInsideCircleRadius = 0;//seekbar内圆半径 private static float mSeekBarDegreeThreshold = 2; private boolean bool_Max = false;//滑动方向最大边界 private boolean bool_Min = false;//滑动方向最小边界 private boolean bool_DrawDir = false;//滑动方向true:正向 private boolean bool_Drawing = false;//true:正在滑动 private float mCurDrawDegree = 0;//当前实际的手指所在的角度 private float mOldDrawDegree = 0;//当前实际的手指所在的角度 //private float mCanDrawDegreeRight = 0;//能向右滑行的角度 private float mCanDrawDegreeLeft = 0;//能向左滑行的角度 private float mSeekBarDegree = 0;//进行绘制seekbar progress刻度的角度 private float mSeekBarStartDegree = 0;//起始角度 private float mSeekBarProgressStartDegree = 0;//起始角度 //private float mSeekBarStopDegree = 0;//结束角度 @SuppressWarnings("unused") private float mSeekBarMax360 = 0;//起始角度 private float mSeekBarMaxDegree = 0; private int mCurrentProgress = 0; private int mSeekBarMax = 100; private float mDegree = (float) 4.5; @SuppressWarnings("unused") private Bitmap bitmapOrg, resizedBitmap; @SuppressWarnings("unused") private int thumbwidth = 0; @SuppressWarnings("unused") private int thumbheight = 0; @SuppressWarnings("unused") private Matrix matrix; //private boolean DEBUG=false; private float seekbar_outside_width = 0; //颜色 private int seekbar_outside_color; private int seekbar_bg_color; private int seekbar_inside_color; private int seekbar_progress_bg_color; private int seekbar_thumb_color; //private Bitmap pointerBitmap; //private Bitmap pointerBitmapShow; /* * 1:单一种颜色 * 2:单一种设定的渐变色 */ @SuppressWarnings("unused") private int seekbar_progress_color_style = 0; private int seekbar_progress_text_color; private int seekbar_progress_unit_color; @SuppressWarnings("unused") private int seekbar_progress_start_color; @SuppressWarnings("unused") private int seekbar_progress_mid_color; @SuppressWarnings("unused") private int seekbar_progress_end_color; @SuppressWarnings("unused") private int color_default; //显示字体单位和大小 @SuppressWarnings("unused") private String progress_unit_text = "dB"; private int progress_textsize = 0; private int progress_unit_textsize = 0; @SuppressWarnings("unused") private String text_seekbar_progress = "0"; private int conversion = 0; private SweepGradient s; // 左下角开始 private int start_arc = 135; private int end_wheel; private Context mContext = null; public MCCP_SeekBar(Context context) { super(context); mContext = context; init(null, 0); } public MCCP_SeekBar(Context context, AttributeSet attrs) { super(context, attrs); mContext = context; init(attrs, 0); } public MCCP_SeekBar(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); mContext = context; init(attrs, defStyle); } private void init(AttributeSet attrs, int defStyle) { final TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.MCCP_SeekBar, defStyle, 0); initAttributes(a); a.recycle(); // mAngle = (float) (-Math.PI / 2); //外环 mColorOutsideWheelPaint = new Paint(Paint.ANTI_ALIAS_FLAG); mColorOutsideWheelPaint.setShader(s); mColorOutsideWheelPaint.setColor(seekbar_outside_color); mColorOutsideWheelPaint.setStyle(Paint.Style.STROKE); mColorOutsideWheelPaint.setStrokeWidth(seekbar_outside_width); //seekbar 背景 mColorWheelPaint = new Paint(Paint.ANTI_ALIAS_FLAG); mColorWheelPaint.setShader(s); mColorWheelPaint.setColor(seekbar_bg_color); mColorWheelPaint.setStyle(Paint.Style.STROKE); mColorWheelPaint.setStrokeWidth(mColorWheelStrokeWidth); //seekbar Progress mColorWheelProgresPaint = new Paint(Paint.ANTI_ALIAS_FLAG); mColorWheelProgresPaint.setShader(s); mColorWheelProgresPaint.setColor(seekbar_progress_bg_color); mColorWheelProgresPaint.setStyle(Paint.Style.STROKE); mColorWheelProgresPaint.setStrokeWidth(mColorWheelStrokeSBWidth); //内圆 mColorInsideCirclePaint = new Paint(Paint.ANTI_ALIAS_FLAG); mColorInsideCirclePaint.setShader(s); mColorInsideCirclePaint.setColor(seekbar_inside_color); //Thumb mColorThumbPaint = new Paint(Paint.ANTI_ALIAS_FLAG); mColorThumbPaint.setShader(s); mColorThumbPaint.setColor(seekbar_progress_bg_color); //mColorThumbPaint.setStyle(Paint.Style.STROKE); mColorThumbPaint.setStrokeWidth(mColorWheelStrokeSBWidth / 2); //mColorThumbPaint.setColor(seekbar_thumb_color); //Text 单位 mColorUnitPaint = new Paint(); mColorUnitPaint.setColor(seekbar_progress_unit_color); mColorUnitPaint.setTextSize(progress_unit_textsize); //Text progress mColorProgressPaint = new Paint(); mColorProgressPaint.setColor(seekbar_progress_text_color); mColorProgressPaint.setTextSize(progress_textsize); // 游标所在图片// pointerBitmap = BitmapFactory.decodeResource(this.getResources(),// R.drawable.main_valume_button); bitmapOrg = BitmapFactory.decodeResource(getResources(), R.drawable.main_valume_button);//thrmb_nornal mccp_thumb thumbwidth = bitmapOrg.getWidth(); thumbheight = bitmapOrg.getHeight(); invalidate(); } private void initAttributes(TypedArray a) { mSeekBarMax = a.getInteger(R.styleable.MCCP_SeekBar_mccp_max, 100); if (mSeekBarMax == 46) { mDegree = (float) 5.8; } //seekbar的起始角度和结束角度 start_arc = a.getInteger(R.styleable.MCCP_SeekBar_mccp_start_angle, 0); //start_arc += 5; end_wheel = a.getInteger(R.styleable.MCCP_SeekBar_mccp_end_angle, 360); //mSeekBarMaxDegree = end_wheel; mSeekBarMaxDegree = end_wheel - start_arc; if (mSeekBarMaxDegree < 0) { mSeekBarMaxDegree += 360; } mSeekBarDegree = (mCurrentProgress * mSeekBarMaxDegree / mSeekBarMax); mDegree = mSeekBarMaxDegree / mSeekBarMax; //环形大小设置 mColorWheelStrokeWidth = (int) a.getDimension(R.styleable.MCCP_SeekBar_mccp_seekbar_bg_width, 6); mColorWheelStrokeSBWidth = (int) a.getDimension(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_width, 12); //颜色设置 seekbar_outside_color = a.getColor(R.styleable.MCCP_SeekBar_mccp_seekbar_outside_color, Color.BLUE); seekbar_bg_color = a.getColor(R.styleable.MCCP_SeekBar_mccp_seekbar_bg_color, Color.GRAY); seekbar_inside_color = a.getColor(R.styleable.MCCP_SeekBar_mccp_seekbar_inside_color, Color.WHITE); seekbar_progress_bg_color = a.getColor(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_bg_color, Color.GREEN); seekbar_thumb_color = a.getColor(R.styleable.MCCP_SeekBar_mccp_seekbar_thumb_color, Color.YELLOW); seekbar_progress_color_style = a.getInteger(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_color_style, 1); seekbar_progress_text_color = a.getColor(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_text_color, Color.YELLOW); seekbar_progress_unit_color = a.getColor(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_unit_color, Color.BLACK); seekbar_progress_start_color = a.getColor(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_start_color, Color.YELLOW); seekbar_progress_mid_color = a.getColor(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_mid_color, Color.GREEN); seekbar_progress_end_color = a.getColor(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_end_color, Color.BLACK); //color_default = getResources().getColor(R.color.mccp_color_default); /*thumb*/ mThumbDrawable = a.getDrawable(R.styleable.MCCP_SeekBar_android_thumb); mThumbWidth = this.mThumbDrawable.getIntrinsicWidth(); mThumbHeight = this.mThumbDrawable.getIntrinsicHeight(); mThumbNormal = new int[]{-android.R.attr.state_focused, -android.R.attr.state_pressed, -android.R.attr.state_selected, -android.R.attr.state_checked}; mThumbPressed = new int[]{android.R.attr.state_focused, android.R.attr.state_pressed, android.R.attr.state_selected, android.R.attr.state_checked}; seekbar_outside_width = mThumbWidth / 2; //显示字体单位和大小 progress_unit_text = a.getString(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_unit_text); progress_textsize = a.getInteger(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_textsize, 100); progress_unit_textsize = a.getInteger(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_unit_textsize, 50); text_seekbar_progress = String.valueOf(mCurrentProgress); mlinelong = (int) a.getDimension(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_linelong, 30); //mthumbRadius=(int) a.getDimension(R.styleable.MCCP_SeekBar_mccp_seekbar_progress_thumb_r, 10); mthumbRadius = mColorWheelStrokeSBWidth / 2; } @SuppressLint("NewApi") @Override protected void onDraw(Canvas canvas) { //外环 //canvas.drawCircle(mSeekBarCenterX, mSeekBarCenterY, mSeekBarOutsideRadius, mColorOutsideWheelPaint); //内圆 //canvas.drawCircle(mSeekBarCenterX, mSeekBarCenterY, mSeekBarIntsideRadius, mColorInsideCirclePaint); //seekbar背景 canvas.drawArc(mColorWheelRectangle, start_arc, 360, false, mColorWheelPaint); //seekbar Progress canvas.drawArc(mColorWheelRectangle, start_arc, (mDegree * mCurrentProgress), false, mColorWheelProgresPaint);// //画背景图//// canvas.drawBitmap(pointerBitmapShow, mSeekBarCenterX-mSeekBarOutsideRadius, mSeekBarCenterX-mSeekBarOutsideRadius, null);// //seekbar drawThumb(canvas); canvas.translate(mSeekBarCenterX, mSeekBarCenterY);// //画背Thumb drawThumbBitmap(canvas); } private void drawThumb(Canvas canvas) { thumb_pointerPosition = calculatePointerPosition((360 - (start_arc - 90) - (mSeekBarMaxDegree / mSeekBarMax) * mCurrentProgress), mSeekBarThumbRadius + mthumbRadius); setThumbPosition(Math.toRadians((start_arc + (mSeekBarMaxDegree / mSeekBarMax) * mCurrentProgress))); this.mThumbDrawable.setBounds((int) mThumbLeft, (int) mThumbTop, (int) (mThumbLeft + mThumbWidth), (int) (mThumbTop + mThumbHeight)); this.mThumbDrawable.draw(canvas); } private void setThumbPosition(double radian) { double x = mSeekBarCenterX + mSeekBarRadius * Math.cos(radian); double y = mSeekBarCenterY + mSeekBarRadius * Math.sin(radian); mThumbLeft = (float) (x - mThumbWidth / 2); mThumbTop = (float) (y - mThumbHeight / 2); } public static Bitmap zoomImage(Bitmap bgimage, double newWidth, double newHeight) { // 获取这个图片的宽和高 float width = bgimage.getWidth(); float height = bgimage.getHeight(); // 创建操作图片用的matrix对象 Matrix matrix = new Matrix(); // 计算宽高缩放率 float scaleWidth = ((float) newWidth) / width; float scaleHeight = ((float) newHeight) / height; // 缩放图片动作 matrix.postScale(scaleWidth, scaleHeight); Bitmap bitmap = Bitmap.createBitmap(bgimage, 0, 0, (int) width, (int) height, matrix, true); return bitmap; } // private void drawThumbBitmapButton(Canvas canvas) {// //thumb_pointerPosition=calculatePointerPosition(45+(mSeekBarMax-mCurrentProgress)*mDegree, mSeekBaroutsideRadius+mthumbRadius);// //canvas.drawCircle(thumb_pointerPosition[0], thumb_pointerPosition[1], mthumbRadius, mColorInsideCirclePaint);//// float angle = 0;// //创建操作图片用的matrix对象// matrix = new Matrix();// //旋转图片动作// if(mCurrentProgress<=mSeekBarMax/2){// angle = (float) (225+mCurrentProgress*mDegree);// }else {// angle = (float) ((float) (mCurrentProgress - mSeekBarMax/2)*mDegree);// }// //matrix.postRotate(angle);// resizedBitmap = Bitmap.createBitmap(bitmapOrg, 0, 0, thumbwidth, thumbheight, matrix, true);// canvas.drawBitmap(resizedBitmap, 0, mThumbTop, null);//// } //计算角度，半径，圆的坐标 private float[] calculatePointerPosition(float angle, float Radius) { float x, y; x = (float) Math.sin(2 * Math.PI / 360 * angle) * Radius; y = (float) Math.cos(2 * Math.PI / 360 * angle) * Radius; //System.out.println("angle x:"+x+",y:"+y); return new float[]{x, y}; } //画thumb private void drawThumbBitmap(Canvas canvas) {//(mSeekBarMaxDegree/mSeekBarMax)*mCurrentProgress)// thumb_pointerPosition=calculatePointerPosition((360-(start_arc-90)-(mSeekBarMaxDegree/mSeekBarMax)*mCurrentProgress),// mSeekBarThumbRadius+mthumbRadius);// canvas.drawCircle(thumb_pointerPosition[0], thumb_pointerPosition[1], mthumbRadius, mColorThumbPaint); thumb_pointerPosition = calculatePointerPosition(360 - (start_arc - 90), mSeekBarArcRadius); if (mCurrentProgress != 0) { canvas.drawCircle(thumb_pointerPosition[0], thumb_pointerPosition[1], mthumbRadius, mColorThumbPaint); } } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); int height = getDefaultSize(getSuggestedMinimumHeight(), heightMeasureSpec); int width = getDefaultSize(getSuggestedMinimumWidth(), widthMeasureSpec); int min = Math.min(width, height); setMeasuredDimension(min, min); mSeekBarCenterX = min / 2; mSeekBarCenterY = min / 2; mSeekBarSizeH = height / 2; //各圆的半径 mSeekBarArcRadius = mSeekBarSizeH - mThumbWidth; //外圆弧半径 mSeekBarRadius = mSeekBarArcRadius; mSeekBarOutsideRadius = mSeekBarArcRadius - mSeekBarArcRadius / 7;//外环半径 mSeekBarIntsideRadius = mSeekBarOutsideRadius - mSeekBarOutsideRadius / 15;//内环半径 mSeekBarThumbRadius = mSeekBarIntsideRadius - mSeekBarIntsideRadius / 5; //Thumb所在半径// System.out.println("MCL +mSeekBarCenterX:"+mSeekBarCenterX);// System.out.println("MCL +mSeekBarCenterY:"+mSeekBarCenterY);// System.out.println("MCL +mSeekBarSizeH:"+mSeekBarSizeH);// System.out.println("MCL +mSeekBarArcRadius:"+mSeekBarArcRadius);// System.out.println("MCL +mSeekBarOutsideRadius:"+mSeekBarOutsideRadius);// System.out.println("MCL +mSeekBarIntsideRadius:"+mSeekBarIntsideRadius); mColorWheelRectangle.set(mSeekBarCenterX - mSeekBarArcRadius, mSeekBarCenterX - mSeekBarArcRadius, mSeekBarCenterX + mSeekBarArcRadius, mSeekBarCenterX + mSeekBarArcRadius);// pointerBitmapShow=zoomImage(pointerBitmap,mSeekBarOutsideRadius*2,mSeekBarOutsideRadius*2); } public int getValue() { return conversion; } private void SeekTo() { float drawDegree = 0; if (bool_DrawDir == true) {//正向，变大 bool_Min = false; if (mOldDrawDegree > mCurDrawDegree) { if (DEBUG) System.out.println("MCL +mOldDrawDegree:" + mOldDrawDegree); if (DEBUG) System.out.println("MCL +mCurDrawDegree:" + mCurDrawDegree); if ((360 >= mOldDrawDegree) && (mOldDrawDegree >= 225) && (135 >= mCurDrawDegree) && (mCurDrawDegree >= 0)) { //在临界点切过，方向不变 bool_DrawDir = true; } else { bool_DrawDir = false; mSeekBarStartDegree = mOldDrawDegree; mSeekBarProgressStartDegree = mCurrentProgress * mDegree; mCanDrawDegreeLeft = mCurrentProgress * mDegree; mSeekBarMax360 = mSeekBarStartDegree + mSeekBarMaxDegree - 360; if (DEBUG) System.out.println("MCL +bool_DrawDir:" + bool_DrawDir); return; } } //到达最大边界 if (bool_Max == true) { mOldDrawDegree = mCurDrawDegree; return; } if (mCurDrawDegree >= mSeekBarStartDegree) { drawDegree = mCurDrawDegree - mSeekBarStartDegree + mSeekBarDegreeThreshold; } else if (mCurDrawDegree < mSeekBarStartDegree) { drawDegree = mCurDrawDegree + (360 - mSeekBarStartDegree) + mSeekBarDegreeThreshold; } //用于计算mCurrentProgress mSeekBarDegree = mSeekBarProgressStartDegree + drawDegree; if (DEBUG) System.out.println("MCL +mSeekBarDegree:" + mSeekBarDegree); if (DEBUG) System.out.println("MCL +mCurrentProgress:" + mCurrentProgress); //System.out.println("MCL +mSeekBarProgressStartDegree:"+mSeekBarProgressStartDegree); if ((mSeekBarDegree > mSeekBarMaxDegree) || (0 > mSeekBarDegree)) { mSeekBarDegree = mSeekBarMaxDegree; bool_Max = true; } if ((mSeekBarDegree >= 0) && (mSeekBarDegree <= mSeekBarMaxDegree)) {//正常的大半圆 mCurrentProgress = (int) (mSeekBarMax * mSeekBarDegree / mSeekBarMaxDegree); } //用于在正向中反向滑动 mOldDrawDegree = mCurDrawDegree; if (DEBUG) System.out.println("MCL +++++++++"); } else if (bool_DrawDir == false) {//反向，变小 bool_Max = false; if (mOldDrawDegree < mCurDrawDegree) { if (DEBUG) System.out.println("MCL -mOldDrawDegree:" + mOldDrawDegree); if (DEBUG) System.out.println("MCL -mCurDrawDegree:" + mCurDrawDegree); if ((360 >= mCurDrawDegree) && (mCurDrawDegree >= 225) && (135 >= mOldDrawDegree) && (mOldDrawDegree >= 0)) { //在临界点切过，方向不变 bool_DrawDir = false; } else { bool_DrawDir = true; mSeekBarStartDegree = mOldDrawDegree; mSeekBarProgressStartDegree = mCurrentProgress * mDegree; mCanDrawDegreeLeft = mCurrentProgress * mDegree; mSeekBarMax360 = mSeekBarStartDegree + mSeekBarMaxDegree - 360; if (DEBUG) System.out.println("MCL -bool_DrawDir:" + bool_DrawDir); return; } } //到达最小边界 if (bool_Min == true) { mOldDrawDegree = mCurDrawDegree; return; } if (mCurrentProgress == 0) { bool_Min = true; mOldDrawDegree = mCurDrawDegree; return; } if (mSeekBarStartDegree >= mCurDrawDegree) { drawDegree = mSeekBarStartDegree - mCurDrawDegree - mSeekBarDegreeThreshold; } else if (mSeekBarStartDegree < mCurDrawDegree) { drawDegree = mSeekBarStartDegree + (360 - mCurDrawDegree) - mSeekBarDegreeThreshold; } if (DEBUG) System.out.println("MCL -drawDegree:" + drawDegree); if (drawDegree >= mCanDrawDegreeLeft) { bool_Min = true; mSeekBarDegree = 0; //System.out.println("MCL X"); } else { mSeekBarDegree = mSeekBarProgressStartDegree - drawDegree; if (mSeekBarDegree > 360) { mSeekBarDegree = mSeekBarDegree - 360; } } //用于在反向中正向滑动 mOldDrawDegree = mCurDrawDegree; if ((mSeekBarDegree >= 0) && (mSeekBarDegree <= mSeekBarMaxDegree)) {//正常的大半圆 mCurrentProgress = (int) (mSeekBarMax * mSeekBarDegree / mSeekBarMaxDegree); } if (DEBUG) System.out.println("MCL -------------------------------------------"); //System.out.println("MCL -mCanDrawDegreeLeft:"+mCanDrawDegreeLeft); if (DEBUG) System.out.println("MCL -mSeekBarMaxDegree:" + mSeekBarMaxDegree); if (DEBUG) System.out.println("MCL -mSeekBarDegree:" + mSeekBarDegree); //System.out.println("MCL -mSeekBarProgressStartDegree:"+mSeekBarProgressStartDegree); if (DEBUG) System.out.println("MCL ---------"); } //System.out.println("MCL -mCurrentProgress:"+mCurrentProgress); if (mOnMCCP_SeekBarChangeListener != null) { mOnMCCP_SeekBarChangeListener.onProgressChanged(this, mCurrentProgress, true); } invalidate(); } @Override public boolean onTouchEvent(MotionEvent event) { float x = event.getX(); float y = event.getY(); //System.out.println("onTouchEvent x:"+x+",y:"+y); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: mThumbDrawable.setState(mThumbPressed); mSeekBarStartDegree = GetDegree(x, y); mSeekBarProgressStartDegree = mCurrentProgress * mDegree; mCanDrawDegreeLeft = mCurrentProgress * mDegree; mSeekBarMax360 = mSeekBarStartDegree + mSeekBarMaxDegree - 360; mOldDrawDegree = mSeekBarStartDegree; bool_Drawing = false; if (DEBUG) System.out.println("MCL d mSeekBarStartDegree:" + mSeekBarStartDegree); if (DEBUG) System.out.println("MCL d mCurDrawDegree:" + mCurDrawDegree); if (DEBUG) System.out.println("MCL ACTION_DOWN"); break; case MotionEvent.ACTION_MOVE: mThumbDrawable.setState(mThumbPressed); mCurDrawDegree = GetDegree(x, y); if (DEBUG) System.out.println("MCL mCurDrawDegree:" + mCurDrawDegree); if (bool_Drawing == false) { bool_Drawing = true; if (mCurDrawDegree >= mSeekBarStartDegree + mSeekBarDegreeThreshold) { if ((360 >= mCurDrawDegree) && (mCurDrawDegree >= 225) && (135 >= mSeekBarStartDegree + mSeekBarDegreeThreshold) && (mSeekBarStartDegree + mSeekBarDegreeThreshold >= 0)) { bool_DrawDir = false;//反向，变小 } else { bool_DrawDir = true;//正向，变大 } } else if (mCurDrawDegree < mSeekBarStartDegree - mSeekBarDegreeThreshold) { if ((360 >= mSeekBarStartDegree - mSeekBarDegreeThreshold) && (mSeekBarStartDegree - mSeekBarDegreeThreshold >= 225) && (135 >= mCurDrawDegree) && (mCurDrawDegree >= 0)) { bool_DrawDir = true;//正向，变大 } else { bool_DrawDir = false;//反向，变小 } } if (DEBUG) System.out.println("MCL MOVE bool_DrawDir:" + bool_DrawDir); } else if (bool_Drawing == true) { SeekTo(); } break; case MotionEvent.ACTION_UP: bool_Drawing = false; mThumbDrawable.setState(mThumbNormal); invalidate(); break; default: bool_Drawing = false; mThumbDrawable.setState(mThumbNormal); invalidate(); break; } if (event.getAction() == MotionEvent.ACTION_MOVE && getParent() != null) { getParent().requestDisallowInterceptTouchEvent(true); } return true; } private float GetDegree(float x, float y) { float Degree = 0; double radian = Math.atan2(y - mSeekBarCenterY, x - mSeekBarCenterX); if (radian < 0) { radian = radian + 2 * Math.PI; } Degree = Math.round(Math.toDegrees(radian)); return Degree; } @Override protected Parcelable onSaveInstanceState() { Parcelable superState = super.onSaveInstanceState(); Bundle state = new Bundle(); state.putParcelable(STATE_PARENT, superState); state.putFloat(STATE_ANGLE, mCurrentProgress); return state; } @Override protected void onRestoreInstanceState(Parcelable state) { Bundle savedState = (Bundle) state; Parcelable superState = savedState.getParcelable(STATE_PARENT); super.onRestoreInstanceState(superState); mCurrentProgress = (int) savedState.getFloat(STATE_ANGLE); mSeekBarDegree = (mCurrentProgress * mSeekBarMaxDegree / mSeekBarMax);// if(mCurrentProgress==mSeekBarMax){// text_seekbar_progress=String.valueOf(mSeekBarMax-mCurrentProgress);// }else{// text_seekbar_progress=String.valueOf(0-(mSeekBarMax-mCurrentProgress));// } text_seekbar_progress = String.valueOf(mCurrentProgress); } public void setOnMCLSeekBarChangeListener(OnMCCP_SeekBarChangeListener l) { mOnMCCP_SeekBarChangeListener = l; } public interface OnMCCP_SeekBarChangeListener { public abstract void onProgressChanged(MCCP_SeekBar mcSeekBar, int progress, boolean fromUser); } public void setProgressThumb(int thumbId) { mThumbDrawable = mContext.getResources().getDrawable(thumbId); } public void setProgressMax(int max) { mSeekBarMax = max; mDegree = mSeekBarMaxDegree / mSeekBarMax; } /* * 增加set方法，用于在java代码中调用 */ public void setProgress(int progress) { if (progress > mSeekBarMax) { progress = mSeekBarMax; } if (progress < 0) { progress = 0; } mCurrentProgress = progress; //if (mOnMCCP_SeekBarChangeListener != null){ // mOnMCCP_SeekBarChangeListener.onProgressChanged(this,mCurrentProgress, true); //} // mSeekBarDegree = (progress * mSeekBarMaxDegree / mSeekBarMax);// if(mCurrentProgress==mSeekBarMax){// text_seekbar_progress=String.valueOf(mSeekBarMax-mCurrentProgress);// }else{// text_seekbar_progress=String.valueOf(0-(mSeekBarMax-mCurrentProgress));// } //text_seekbar_progress=String.valueOf(mCurrentProgress); //System.out.println("MCL setProgress:"+mCurrentProgress); invalidate(); } /* * 增加setCanTouch方法，用于在java代码中调用 */ public void setTouch(boolean touch) { //CanTouch=touch; } /* * 增加setCanTouch方法，用于在java代码中调用 */ public int getProgress() { return mCurrentProgress; }}
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