我正在尝试编写一个代码,以便在Android布局中使用aChartengine绘制图形。我已成功绘制图形但我面临的问题是在特定ViewGroup内的布局中对齐Graph。
MyCode:
MainActivity.java
public class MainActivity extends ActionBarActivity {
List<double[]> xValues;
List<double[]> yValues;
List<double[]> yValues1;
GraphicalView view;
MultipleTemperatureChart multiple;
RelativeLayout rlt;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
xValues = new ArrayList<double[]>();
yValues = new ArrayList<double[]>();
yValues1 = new ArrayList<double[]>();
rlt = (RelativeLayout) findViewById(R.id.rlt);
multiple = new MultipleTemperatureChart(this);
int[] data = {143,144,145,137,156,146,158,139,144,143};
double[] doubTime = new double[data.length];
double[] doubNote = new double[data.length];
double[] doubZero = new double[data.length];
for(int i=0;i<data.length;i++){
doubTime[i] = index;
doubNote[i] = data[i];
doubZero[i] = 0;
index++;
}
xValues.add(doubTime);
yValues.add(doubNote);
yValues1.add(doubZero);
view = multiple.execute(getApplicationContext(),xValues,yValues,yValues1);
view.setBackgroundColor(Color.YELLOW);
view.setLayoutParams(new LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, 400));
rlt.addView(view);
}
}
activity_main.xml中
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="500dp"
android:orientation="vertical"
android:background="#33cc00"
android:id="@+id/rltParams">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/rlt"/>
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/rlt"
android:background="#cc4455"
android:id="@+id/view"/>
</RelativeLayout>
所以这些是我的问题的代码和截图。我想在绿色RelativeLayout 中绘制图表,并且红色视图需要低于图表布局。
请建议我在布局中正确绘制图形的一些解决方案或技巧。
答案 0 :(得分:0)
如果你想把图表放在绿色布局中,试试这个:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="500dp"
android:orientation="vertical"
android:background="#33cc00"
android:id="@+id/rltParams">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/rlt"/>
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#cc4455"
android:id="@+id/view"/>
</RelativeLayout>
只需删除以下行:
android:layout_below="@+id/rlt"
这是什么红色视图?
尝试这样的事情: (要查看红色视图,您需要在布局@ + id / rlt中放置一个高度。)
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="500dp"
android:orientation="vertical"
android:id="@+id/rltParams">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
android:background="#33cc00"
android:id="@+id/rlt"/>
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#cc4455"
android:layout_below="@+id/rlt"
android:id="@+id/view"/>
</RelativeLayout>