之前有寫過(guò)一個(gè)圖表lib,但是開發(fā)的速度,大多很難跟上產(chǎn)品需求變化的腳步,所以修改了下原先的圖表庫(kù),支持圖表下面能整合table顯示對(duì)應(yīng)的類目,用曲線替換了折線,支持多曲線的顯示,增加了顯示的動(dòng)畫,,增加了一些可定制的屬性,支持水平柱狀圖和疊加柱狀圖,以及多曲線圖和餅狀圖的顯示
主要從事網(wǎng)頁(yè)設(shè)計(jì)、PC網(wǎng)站建設(shè)(電腦版網(wǎng)站建設(shè))、wap網(wǎng)站建設(shè)(手機(jī)版網(wǎng)站建設(shè))、響應(yīng)式網(wǎng)站、程序開發(fā)、微網(wǎng)站、小程序定制開發(fā)等,憑借多年來(lái)在互聯(lián)網(wǎng)的打拼,我們?cè)诨ヂ?lián)網(wǎng)網(wǎng)站建設(shè)行業(yè)積累了豐富的網(wǎng)站設(shè)計(jì)、成都網(wǎng)站設(shè)計(jì)、網(wǎng)絡(luò)營(yíng)銷經(jīng)驗(yàn),集策劃、開發(fā)、設(shè)計(jì)、營(yíng)銷、管理等多方位專業(yè)化運(yùn)作于一體,具備承接不同規(guī)模與類型的建設(shè)項(xiàng)目的能力。
1.效果圖

2.各種圖表的使用方式
1.餅狀圖 這個(gè)和原先的使用一樣,只不過(guò)增加了一個(gè)動(dòng)畫,可以參看之前的文章,餅狀圖使用。
2.水平多柱狀圖
2.1 xml布局
<wellijohn.org.varchart.hor_bar_with_line_chart.ChartLine android:id="@+id/chartline" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@color/white" app:default_x_visible_num="4.2"http://一個(gè)屏幕中顯示多少列 app:y_interval="40dp"http://Y軸的間距 app:y_num_text_max_width="56dp"http://y軸左邊的文字的寬度 />
還有y_visible_num:y軸需要顯示幾列
2.2 數(shù)據(jù)設(shè)置
public class HorBarActivity extends AppCompatActivity {
//顯示的坐標(biāo)點(diǎn)
private ChartLine mChartline;
//多條折線的坐標(biāo)點(diǎn)
private List<List<DotVo>> mMulListDisDots;
//x軸的點(diǎn)
private String[] mXdots = new String[]{"08/18"
, "08/19",
"08/20", "08/21", "08/22", "08/23", "08/24",
"08/25", "08/26", "08/27", "08/28", "08/29", "09/01", "09/02", "09/23",
};
private double mMax = 44;
private Random rand = new Random();
private List<CategoryVo> mCategoryList;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hor_bar);
initView();
initMulTestData();
initCategoryList();
try {
mChartline.setYAxisMaxValue(mMax).setXdots(mXdots).setAnimationOpen(true).setListDisDots(mMulListDisDots).
setCategoryList(mCategoryList).reDraw();
} catch (YCoordinateException e) {
Log.d("MainActivity", "onCreate: ");
e.printStackTrace();
}
}
/**
* 柱狀圖的數(shù)據(jù),是一個(gè)list,一個(gè)CategoryVo,就是一列中增加一個(gè)柱狀
* CategoryVo:{
* 卡券類目的名稱
* private String categoryName;
* 每個(gè)卡券類目的值
* private List<String> categoryValueList;
* }
*/
private void initCategoryList() {
mCategoryList = new ArrayList<>();
mCategoryList.add(new CategoryVo());
mCategoryList.add(new CategoryVo());
mCategoryList.add(new CategoryVo());
}
/**
* 初始化曲線圖,private List<List<DotVo>> mMulListDisDots;
* List<DotVo>>就是一條曲線圖,
*/
private void initMulTestData() {
mMulListDisDots = new ArrayList<>();
for (int i = 0; i < 3; i++) {
ArrayList<DotVo> temp = new ArrayList();
DotVo tempDotVo = new DotVo("08/18", rand.nextInt((int) mMax));
temp.add(tempDotVo);
DotVo tempDotVo1 = new DotVo("08/19", rand.nextInt((int) mMax));
temp.add(tempDotVo1);
DotVo tempDotVo2 = new DotVo("08/20", rand.nextInt((int) mMax));
temp.add(tempDotVo2);
DotVo tempDotVo3 = new DotVo("08/21", rand.nextInt((int) mMax));
temp.add(tempDotVo3);
DotVo tempDotVo4 = new DotVo("08/22", rand.nextInt((int) mMax));
temp.add(tempDotVo4);
DotVo tempDotVo5 = new DotVo("08/23", rand.nextInt((int) mMax));
temp.add(tempDotVo5);
DotVo tempDotVo6 = new DotVo("09/02", rand.nextInt((int) mMax));
temp.add(tempDotVo6);
mMulListDisDots.add(temp);
}
}
private void initView() {
mChartline = findViewById(R.id.chartline);
}
}3.疊加柱狀圖
3.1 xml布局
<wellijohn.org.varchart.overlay_bar_with_line_chart.OverLayBarChartLine android:id="@+id/overlay_chart_line" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@color/white" android:visibility="visible" app:overlay_default_x_visible_num="4.2" app:overlay_y_interval="40dp" app:overlay_y_num_text_max_width="56dp" />
3.2 數(shù)據(jù)設(shè)置,如2.2一樣
3.實(shí)現(xiàn)的幾個(gè)關(guān)鍵點(diǎn)
3.1 寬度需要重寫,onMeasure,因?yàn)榈目丶膶挾仁谴笥谄聊坏膶挾鹊模瑢挾仁歉鶕?jù)顯示的x軸的點(diǎn)和間距,以及y軸坐標(biāo)的文字的所占的寬度的距離所組成。
int widthParentMeasureMode = MeasureSpec.getMode(widthMeasureSpec);
int widthParentMeasureSize = MeasureSpec.getSize(widthMeasureSpec);
int heightParentMeasureMode = MeasureSpec.getMode(heightMeasureSpec);
int heightParentMeasureSize = MeasureSpec.getSize(heightMeasureSpec);
int resultWidthSize = 0;
int resultHeightSize = 0;
int resultWidthMode = MeasureSpec.EXACTLY;//用來(lái)對(duì)childView進(jìn)行計(jì)算的
int resultHeightMode = MeasureSpec.EXACTLY;
int paddingWidth = getPaddingLeft() + getPaddingRight();
int paddingHeight = getPaddingTop() + getPaddingBottom();
ViewGroup.LayoutParams thisLp = getLayoutParams();
switch (widthParentMeasureMode) {
//父類不加限制給子類
case MeasureSpec.UNSPECIFIED:
//這個(gè)代表在布局寫死了寬度
if (thisLp.width > 0) {
resultWidthSize = thisLp.width;
resultWidthMode = MeasureSpec.EXACTLY;
} else {
resultWidthSize = (int) (getYMaxTextWidth() + mXinterval * mXdots.length);
resultWidthMode = MeasureSpec.UNSPECIFIED;
}
break;
case MeasureSpec.AT_MOST:
//這個(gè)代表在布局寫死了寬度
if (thisLp.width > 0) {
resultWidthSize = thisLp.width;
resultWidthMode = MeasureSpec.EXACTLY;
} else if (thisLp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
resultWidthSize = Math.max(0, widthParentMeasureSize - paddingWidth);
resultWidthMode = MeasureSpec.AT_MOST;
} else if (thisLp.width == ViewGroup.LayoutParams.WRAP_CONTENT) {
resultWidthSize = (int) (getYMaxTextWidth() + mXinterval * mXdots.length);
resultWidthMode = MeasureSpec.AT_MOST;
}
break;
case MeasureSpec.EXACTLY:
//這個(gè)代表在布局寫死了寬度
if (thisLp.width > 0) {
resultWidthSize = Math.min(widthParentMeasureSize, thisLp.width);
resultWidthMode = MeasureSpec.EXACTLY;
} else if (thisLp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
resultWidthSize = widthParentMeasureSize;
resultWidthMode = MeasureSpec.EXACTLY;
} else if (thisLp.width == ViewGroup.LayoutParams.WRAP_CONTENT) {
resultWidthSize = (int) (getYMaxTextWidth() + mXinterval * mXdots.length);
resultWidthMode = MeasureSpec.AT_MOST;
}
break;
}
setMeasuredDimension(MeasureSpec.makeMeasureSpec(resultWidthSize, resultWidthMode),
MeasureSpec.makeMeasureSpec(resultHeightSize, resultHeightMode));3.2 規(guī)劃固定的區(qū)域,在超出區(qū)域的部分不可見,這個(gè)在之前用的bitmap來(lái)實(shí)現(xiàn),總感覺別扭,后面讀官方的源碼的時(shí)候,了解了canvas的clipRect方法,我們?cè)诶L制這塊的時(shí)候,onDraw方法中調(diào)用
int clipRestoreCount = canvas.save(); canvas.clipRect(mContentRect);//繪制之前調(diào)用 doDraw();//進(jìn)行想要的繪制 canvas.restoreToCount(clipRestoreCount);//繪制完成調(diào)用restoreToCount恢復(fù)到繪制這塊之前的狀態(tài)
3.3 動(dòng)畫我們基本都可以用ValueAnimator來(lái)實(shí)現(xiàn),比如說(shuō)餅狀圖:他的一個(gè)繪制是0-360的角度的轉(zhuǎn)變,我們就可以
private void startPathAnim(long duration) {
ValueAnimator valueAnimator = ValueAnimator.ofFloat(0, 360);
valueAnimator.setDuration(duration);
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
mDrawAngle = (float) animation.getAnimatedValue();
ViewCompat.postInvalidateOnAnimation(CirclePercentChart.this);
}
});
valueAnimator.start();
}然后通過(guò)mDrawAngle來(lái)控制每次繪制的角度,這樣就可以有從0-360度繪制的感覺,那個(gè)柱狀圖的動(dòng)畫也是一樣的,以不變應(yīng)萬(wàn)變。
3.4 貝塞爾曲線繪制的算法
if (i == 0) {// 第一條為二階貝塞爾
path.moveTo(mDots[0], mDots[1] + (mLastHorLineY - mDots[1]) * mPhaseY);// 起點(diǎn)
} else {
float cpx = preX + (mDots[0] - preX) / 2.0f;
path.cubicTo(cpx, preY + (mLastHorLineY - preY) * mPhaseY,
cpx, mDots[1] + (mLastHorLineY - mDots[1]) * mPhaseY,
mDots[0], mDots[1] + (mLastHorLineY - mDots[1]) * mPhaseY);}在繪制貝塞爾曲線,我仔細(xì)去查過(guò)這些控制點(diǎn)的計(jì)算規(guī)則,有根據(jù)三點(diǎn),來(lái)計(jì)算出兩個(gè)控制點(diǎn),但是這樣繪制出來(lái)在三個(gè)點(diǎn)內(nèi)部曲線是很平滑的,但是在接下來(lái)的第四個(gè)點(diǎn)的銜接的時(shí)候,感覺不是很好,所以我還是用了上面的計(jì)算方法來(lái)計(jì)算控制點(diǎn),算法我貼出來(lái),參數(shù)分別是1,2,3的x和y坐標(biāo)和彎曲系數(shù)
public static ControlPonits getControlPoints(double x0, double y0, double x1, double y1, double x2, double y2, double paramCoefficient) {
double d01 = Math.sqrt(Math.pow(x1 - x0, 2) + Math.pow(y1 - y0, 2));
double d12 = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
double fa = paramCoefficient * d01 / (d01 + d12); // scaling factor for triangle Ta
double fb = paramCoefficient * d12 / (d01 + d12); // ditto for Tb, simplifies to fb=t-fa
double p1x = x1 - fa * (x2 - x0); // x2-x0 is the width of triangle T
double p1y = y1 - fa * (y2 - y0); // y2-y0 is the height of T
double p2x = x1 + fb * (x2 - x0);
double p2y = y1 + fb * (y2 - y0);
ControlPonits tempControlPoints = new ControlPonits();
tempControlPoints.beforeControlPointX = (float) p1x;
tempControlPoints.beforeControlPointY = (float) p1y;
tempControlPoints.afterControlPointX = (float) p2x;
tempControlPoints.afterControlPointY = (float) p2y;
return tempControlPoints;
}3.library引入方式
step 1. Add it in your root build.gradle at the end of repositories:
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
Step 2. Add the dependency
dependencies {
compile 'com.github.WelliJohn:charts:1.0.0'
}github地址 。
總結(jié)
以上所述是小編給大家介紹的Android實(shí)現(xiàn)一個(gè)包含表格的圖標(biāo)庫(kù)實(shí)例代碼,希望對(duì)大家有所幫助,如果大家有任何疑問請(qǐng)給我留言,小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)創(chuàng)新互聯(lián)網(wǎng)站的支持!
標(biāo)題名稱:Android實(shí)現(xiàn)一個(gè)包含表格的圖標(biāo)庫(kù)實(shí)例代碼
當(dāng)前網(wǎng)址:http://chinadenli.net/article0/jhjeoo.html
成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián),為您提供商城網(wǎng)站、App設(shè)計(jì)、微信小程序、關(guān)鍵詞優(yōu)化、外貿(mào)網(wǎng)站建設(shè)、網(wǎng)站策劃
聲明:本網(wǎng)站發(fā)布的內(nèi)容(圖片、視頻和文字)以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主,如果涉及侵權(quán)請(qǐng)盡快告知,我們將會(huì)在第一時(shí)間刪除。文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng),如需處理請(qǐng)聯(lián)系客服。電話:028-86922220;郵箱:631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載,或轉(zhuǎn)載時(shí)需注明來(lái)源: 創(chuàng)新互聯(lián)