我希望能够像附图一样绘制一个图示，但我在绘制右边的红色竖矩形并将其他对象放在其上时遇到了麻烦。最大的问题与 Android 设备的众多不同屏幕尺寸有关。在过程中我完全理解我所要实现的目标，包括以下各项。非常感谢任何帮助。
- 屏幕两侧各有1个红色矩形（我不知道如何在右侧绘制）
- 在红色竖矩形之间有7个灰色方框，宽度相等
- 需要在矩形之间放置一条黑色竖线，就像上面的图像一样
- 每个灰色方框的中心都需要有一个显示数字的文本框以及一些小的红色方框
- 我还想能够在未来重复使用该图示，这样我可以随时填充小的红色或黑色方块
布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<my.package.name.ComplexDiagram
android:layout_width="match_parent"
android:layout_height="65dp"
android:layout_centerVertical="true"
/>
</RelativeLayout>
Java
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;
public class ComplexDiagram extends View {
private int measuredWidth, measuredHeight;
private Paint mGreyRectPaint, mBlackLinePaint, mRedRectPaint;
private RectF mGreyRect, mBlackLineF, mRedRectF;
public ComplexDiagram(Context context) {
super(context);
init(context, null, 0);
}
public ComplexDiagram(Context context, AttributeSet attrs) {
super(context, attrs);
init(context, attrs, 0);
}
public ComplexDiagram(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context, attrs, defStyleAttr);
}
private void init(Context context, AttributeSet attributeSet, int defStyle) {
mGreyRectPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mGreyRectPaint.setColor(0xFF3C3C3C);
mGreyRectPaint.setStyle(Paint.Style.FILL);
mBlackLinePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mBlackLinePaint.setColor(0xFF000000);
mBlackLinePaint.setStyle(Paint.Style.FILL);
mRedRectPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mRedRectPaint.setColor(0xFFCC3333);
mRedRectPaint.setStyle(Paint.Style.FILL);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
measuredHeight = getDefaultSize(getSuggestedMinimumHeight(), heightMeasureSpec);
measuredWidth = getDefaultSize(getSuggestedMinimumWidth(), widthMeasureSpec);
setMeasuredDimension(measuredWidth, measuredHeight);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (measuredHeight == 0 || measuredWidth == 0)
return;
canvas.drawRect(mGreyRect, mGreyRectPaint);
canvas.drawRect(mBlackLineF, mBlackLinePaint);
canvas.drawRect(mRedRectF, mRedRectPaint);
}
}