Android图表库MPAndroidChart(二)双轴图

应用

package com.fate.mpandroidcharttwo;import android.graphics.Color;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.Toast;import com.github.mikephil.charting.animation.Easing;import com.github.mikephil.charting.charts.LineChart;import com.github.mikephil.charting.components.Legend;import com.github.mikephil.charting.components.XAxis;import com.github.mikephil.charting.components.YAxis;import com.github.mikephil.charting.data.Entry;import com.github.mikephil.charting.data.LineData;import com.github.mikephil.charting.data.LineDataSet;import com.github.mikephil.charting.highlight.Highlight;import com.github.mikephil.charting.interfaces.datasets.ILineDataSet;import com.github.mikephil.charting.listener.OnChartValueSelectedListener;import com.github.mikephil.charting.utils.ColorTemplate;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity implements OnChartValueSelectedListener, View.OnClickListener {    private LineChart mDoubleLineChar;    //显示顶点值    private Button btn_show_values;    //是否填满    private Button btn_actionToggleFilled;    //是否显示圆点    private Button btn_actionToggleCircles;    //切换立方    private Button btn_actionToggleCubic;    //切换尖角/矩形    private Button btn_actionToggleStepped;    //切换横向立方    private Button btn_actionToggleHorizontalCubic;    //x轴动画    private Button btn_anim_x;    //y轴动画    private Button btn_anim_y;    //xy轴动画    private Button btn_anim_xy;    //保存到sd卡    private Button btn_save_sd;    //切换自动最大最小值    private Button btn_auto_mix_max;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initView();    }    //初始化View    private void initView() {        //基本控件        btn_show_values = (Button) findViewById(R.id.btn_show_values);        btn_show_values.setOnClickListener(this);        btn_actionToggleFilled = (Button) findViewById(R.id.btn_actionToggleFilled);        btn_actionToggleFilled.setOnClickListener(this);        btn_actionToggleCircles = (Button) findViewById(R.id.btn_actionToggleCircles);        btn_actionToggleCircles.setOnClickListener(this);        btn_actionToggleCubic = (Button) findViewById(R.id.btn_actionToggleCubic);        btn_actionToggleCubic.setOnClickListener(this);        btn_actionToggleStepped = (Button) findViewById(R.id.btn_actionToggleStepped);        btn_actionToggleStepped.setOnClickListener(this);        btn_actionToggleHorizontalCubic = (Button) findViewById(R.id.btn_actionToggleHorizontalCubic);        btn_actionToggleHorizontalCubic.setOnClickListener(this);        btn_anim_x = (Button) findViewById(R.id.btn_anim_x);        btn_anim_x.setOnClickListener(this);        btn_anim_y = (Button) findViewById(R.id.btn_anim_y);        btn_anim_y.setOnClickListener(this);        btn_anim_xy = (Button) findViewById(R.id.btn_anim_xy);        btn_anim_xy.setOnClickListener(this);        btn_save_sd = (Button) findViewById(R.id.btn_save_sd);        btn_save_sd.setOnClickListener(this);        btn_auto_mix_max = (Button) findViewById(R.id.btn_auto_mix_max);        btn_auto_mix_max.setOnClickListener(this);        mDoubleLineChar = (LineChart) findViewById(R.id.mDoubleLineChar);        //设置数值选择监听        mDoubleLineChar.setOnChartValueSelectedListener(this);        // 没有描述的文本        mDoubleLineChar.getDescription().setEnabled(false);        // 支持触控手势        mDoubleLineChar.setTouchEnabled(true);        mDoubleLineChar.setDragDecelerationFrictionCoef(0.9f);        // 支持缩放和拖动        mDoubleLineChar.setDragEnabled(true);        mDoubleLineChar.setScaleEnabled(true);        mDoubleLineChar.setDrawGridBackground(false);        mDoubleLineChar.setHighlightPerDragEnabled(true);        // 如果禁用,扩展可以在x轴和y轴分别完成        mDoubleLineChar.setPinchZoom(true);        // 设置背景颜色(灰色)        mDoubleLineChar.setBackgroundColor(Color.BLACK);        //设置数据        setData(20, 30);        //默认x动画        mDoubleLineChar.animateX(2500);        //获得数据        Legend l = mDoubleLineChar.getLegend();        //修改        l.setForm(Legend.LegendForm.LINE);        l.setTextSize(11f);        l.setTextColor(Color.WHITE);        l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);        l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.LEFT);        l.setOrientation(Legend.LegendOrientation.HORIZONTAL);        l.setDrawInside(false);        //x轴        XAxis xAxis = mDoubleLineChar.getXAxis();        xAxis.setTextSize(11f);        xAxis.setTextColor(Color.WHITE);        xAxis.setDrawGridLines(false);        xAxis.setDrawAxisLine(false);        //左边y轴        YAxis leftAxis = mDoubleLineChar.getAxisLeft();        leftAxis.setTextColor(ColorTemplate.getHoloBlue());        leftAxis.setAxisMaximum(200f);        leftAxis.setAxisMinimum(0f);        leftAxis.setDrawGridLines(true);        leftAxis.setGranularityEnabled(true);        //右边        YAxis rightAxis = mDoubleLineChar.getAxisRight();        rightAxis.setTextColor(Color.RED);        rightAxis.setAxisMaximum(900);        rightAxis.setAxisMinimum(-200);        rightAxis.setDrawGridLines(false);        rightAxis.setDrawZeroLine(false);        rightAxis.setGranularityEnabled(false);    }    //设置数据    private void setData(int count, float range) {        ArrayList<Entry> yVals1 = new ArrayList<Entry>();        for (int i = 0; i < count; i++) {            float mult = range / 2f;            float val = (float) (Math.random() * mult) + 50;            yVals1.add(new Entry(i, val));        }        ArrayList<Entry> yVals2 = new ArrayList<Entry>();        for (int i = 0; i < count - 1; i++) {            float mult = range;            float val = (float) (Math.random() * mult) + 250;            yVals2.add(new Entry(i, val));        }        ArrayList<Entry> yVals3 = new ArrayList<Entry>();        for (int i = 0; i < count; i++) {            float mult = range;            float val = (float) (Math.random() * mult) + 500;            yVals3.add(new Entry(i, val));        }        LineDataSet set1, set2, set3;        if (mDoubleLineChar.getData() != null &&                mDoubleLineChar.getData().getDataSetCount() > 0) {            set1 = (LineDataSet) mDoubleLineChar.getData().getDataSetByIndex(0);            set2 = (LineDataSet) mDoubleLineChar.getData().getDataSetByIndex(1);            set3 = (LineDataSet) mDoubleLineChar.getData().getDataSetByIndex(2);            set1.setValues(yVals1);            set2.setValues(yVals2);            set3.setValues(yVals3);            mDoubleLineChar.getData().notifyDataChanged();            mDoubleLineChar.notifyDataSetChanged();        } else {            // 创建一个数据集,并给它一个类型            set1 = new LineDataSet(yVals1, "鸡群");            set1.setAxisDependency(YAxis.AxisDependency.LEFT);            set1.isDrawValuesEnabled();            set1.setColor(ColorTemplate.getHoloBlue());            set1.setCircleColor(Color.WHITE);            set1.setLineWidth(2f);            set1.setCircleRadius(3f);            set1.setFillAlpha(65);            set1.setFillColor(ColorTemplate.getHoloBlue());            set1.setHighLightColor(Color.rgb(244, 117, 117));            set1.setDrawCircleHole(false);            //创建一个数据集,并给它一个类型            set2 = new LineDataSet(yVals2, "鸭群");            set1.isDrawValuesEnabled();            set2.setAxisDependency(YAxis.AxisDependency.RIGHT);            set2.setColor(Color.RED);            set2.setCircleColor(Color.WHITE);            set2.setLineWidth(2f);            set2.setCircleRadius(3f);            set2.setFillAlpha(65);            set2.setFillColor(Color.RED);            set2.setDrawCircleHole(false);            set2.setHighLightColor(Color.rgb(244, 117, 117));            set3 = new LineDataSet(yVals3, "鹅群");            set3.setAxisDependency(YAxis.AxisDependency.RIGHT);            set3.setColor(Color.YELLOW);            set1.isDrawValuesEnabled();            set3.setCircleColor(Color.WHITE);            set3.setLineWidth(2f);            set3.setCircleRadius(3f);            set3.setFillAlpha(65);            set3.setFillColor(ColorTemplate.colorWithAlpha(Color.YELLOW, 200));            set3.setDrawCircleHole(false);            set3.setHighLightColor(Color.rgb(244, 117, 117));            // 创建一个数据集的数据对象            LineData data = new LineData(set1, set2, set3);            data.setValueTextColor(Color.WHITE);            data.setValueTextSize(9f);            //设置数据            mDoubleLineChar.setData(data);        }    }    @Override    public void onValueSelected(Entry e, Highlight h) {    }    @Override    public void onNothingSelected() {    }    @Override    public void onClick(View v) {        switch (v.getId()) {            //显示顶点的值开关            case R.id.btn_show_values:                //获取到当前值                List<ILineDataSet> sets = mDoubleLineChar.getData().getDataSets();                for (ILineDataSet iSet : sets) {                    LineDataSet set = (LineDataSet) iSet;                    //切换显示/隐藏                    set.setDrawValues(!set.isDrawValuesEnabled());                }                //刷新                mDoubleLineChar.invalidate();                break;            //是否填满            case R.id.btn_actionToggleFilled:                List<ILineDataSet> setsFilled = mDoubleLineChar.getData().getDataSets();                for (ILineDataSet iSet : setsFilled) {                    LineDataSet set = (LineDataSet) iSet;                    if (set.isDrawFilledEnabled())                        set.setDrawFilled(false);                    else                        set.setDrawFilled(true);                }                mDoubleLineChar.invalidate();                break;            //是否显示圆点            case R.id.btn_actionToggleCircles:                List<ILineDataSet> setsCircles = mDoubleLineChar.getData().getDataSets();                for (ILineDataSet iSet : setsCircles) {                    LineDataSet set = (LineDataSet) iSet;                    if (set.isDrawCirclesEnabled())                        set.setDrawCircles(false);                    else                        set.setDrawCircles(true);                }                mDoubleLineChar.invalidate();                break;            //切换立方            case R.id.btn_actionToggleCubic:                List<ILineDataSet> setsCubic = mDoubleLineChar.getData().getDataSets();                for (ILineDataSet iSet : setsCubic) {                    LineDataSet set = (LineDataSet) iSet;                    set.setMode(set.getMode() == LineDataSet.Mode.CUBIC_BEZIER                            ? LineDataSet.Mode.LINEAR                            : LineDataSet.Mode.CUBIC_BEZIER);                }                mDoubleLineChar.invalidate();                break;            //切换尖角/矩形            case R.id.btn_actionToggleStepped:                List<ILineDataSet> setsStepped = mDoubleLineChar.getData().getDataSets();                for (ILineDataSet iSet : setsStepped) {                    LineDataSet set = (LineDataSet) iSet;                    set.setMode(set.getMode() == LineDataSet.Mode.STEPPED                            ? LineDataSet.Mode.LINEAR                            : LineDataSet.Mode.STEPPED);                }                mDoubleLineChar.invalidate();                break;            //切换横向立方            case R.id.btn_actionToggleHorizontalCubic:                List<ILineDataSet> setsHorizontalCubic = mDoubleLineChar.getData().getDataSets();                for (ILineDataSet iSet : setsHorizontalCubic) {                    LineDataSet set = (LineDataSet) iSet;                    set.setMode(set.getMode() == LineDataSet.Mode.HORIZONTAL_BEZIER                            ? LineDataSet.Mode.LINEAR                            : LineDataSet.Mode.HORIZONTAL_BEZIER);                }                mDoubleLineChar.invalidate();                break;            //x轴动画            case R.id.btn_anim_x:                mDoubleLineChar.animateX(3000);                break;            //y轴动画            case R.id.btn_anim_y:                mDoubleLineChar.animateY(3000, Easing.EasingOption.EaseInCubic);                break;            //xy轴动画            case R.id.btn_anim_xy:                mDoubleLineChar.animateXY(3000, 3000);                break;            //保存到sd卡            case R.id.btn_save_sd:                if (mDoubleLineChar.saveToPath("title" + System.currentTimeMillis(), "")) {                    Toast.makeText(this, "保存成功", Toast.LENGTH_SHORT).show();                } else                    Toast.makeText(this, "保存失败", Toast.LENGTH_SHORT).show();                break;            //切换自动最大最小值            case R.id.btn_auto_mix_max:                mDoubleLineChar.setAutoScaleMinMaxEnabled(!mDoubleLineChar.isAutoScaleMinMaxEnabled());                mDoubleLineChar.notifyDataSetChanged();                break;        }    }}

布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">    <com.github.mikephil.charting.charts.LineChart        android:id="@+id/mDoubleLineChar"        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="1"/>    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal">        <Button            android:id="@+id/btn_show_values"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="顶点显示值"/>        <Button            android:id="@+id/btn_actionToggleFilled"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="是否填满"/>        <Button            android:id="@+id/btn_actionToggleCircles"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="是否显示圆点"/>        <Button            android:id="@+id/btn_actionToggleCubic"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="切换立方"/>    </LinearLayout>    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal">        <Button            android:id="@+id/btn_actionToggleStepped"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="切换尖角/矩形"/>        <Button            android:id="@+id/btn_actionToggleHorizontalCubic"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="切换横向立方"/>        <Button            android:id="@+id/btn_anim_x"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="X轴动画"/>        <Button            android:id="@+id/btn_anim_y"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="Y轴动画"/>    </LinearLayout>    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal">        <Button            android:id="@+id/btn_anim_xy"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="XY轴动画"/>        <Button            android:id="@+id/btn_save_sd"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="保存到SD卡"/>        <Button            android:id="@+id/btn_auto_mix_max"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="切换自动最大最小值"/>    </LinearLayout></LinearLayout>

http://blog.csdn.net/qq_26787115/article/details/53187040