Android Chart 框架 MPAndroidChart 学习笔记1_框架初始化
1.安装
1.1 添加依赖
工程级别的build.gradle中添加:
allprojects {
repositories {
maven { url "https://jitpack.io" }
}
}
app下的build.gradle中添加:
dependencies {
compile 'com.github.PhilJay:MPAndroidChart:v3.0.1'
}
2.使用
2.1 在XML中加入chart
<com.github.mikephil.charting.charts.LineChart
android:id="@+id/chart"
android:layout_width="match_parent"
android:layout_height="match_parent" />
2.2 在java中初始化
LineChart chart = (LineChart) findViewById(R.id.chart);
或者:
// programmatically create a LineChart
LineChart chart = new LineChart(Context);
// get a layout defined in xml
RelativeLayout rl = (RelativeLayout) findViewById(R.id.relativeLayout);
rl.add(chart); // add the programmatically created chart
2.3 添加数据
//初始化Entry列表
List<Entry> entries = new ArrayList<Entry>();
new Entry(x,y) 这里xy就对应xy轴的数值
//向Entry中加入数据
for (int i = 0; i < 20; i++) {
// turn your data into Entry objects
entries.add(new Entry(i, 2*i));
}
绑定dataSet
LineDataSet dataSet = new LineDataSet(entries, "Label"); // add entries to dataset
设置表格UI
dataSet.setColor(R.color.colorAccent);
dataSet.setValueTextColor(R.color.colorPrimary); // styling, ...
设置表格形式（lineData line表格）
LineData lineData = new LineData(dataSet);
mChart.setData(lineData);
刷新表格
mChart.invalidate();
