Android:使用文本内部绘制圆圈

Question

我需要在我的片段中绘制三个圆圈,圆圈的大小不同,我引用此链接 我获得的结果是这个

这是我的XML代码:UPDATED

<?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:gravity="center" >
         <TextView
             android:id="@+id/large_volume"
             android:layout_width="185dp"
             android:layout_height="185dp"
             android:background="@drawable/circle"
             android:gravity="center"
             android:text="My name is NON"
             android:textColor="#FFFFFF"
             android:textSize="10dp" />

         <TextView
             android:id="@+id/medium_volume"
             android:layout_width="120dp"
             android:layout_height="120dp"
             android:layout_alignTop="@+id/large_volume"
             android:layout_toRightOf="@+id/large_volume"
             android:background="@drawable/circle"
             android:gravity="center"
             android:text="My name is NON"
             android:textColor="#FFFFFF"
             android:textSize="10dp" />

         <TextView
             android:id="@+id/TextView02"
             android:layout_width="90dp"
             android:layout_height="90dp"
             android:layout_below="@+id/medium_volume"
             android:layout_toRightOf="@+id/large_volume"
             android:background="@drawable/circle"
             android:gravity="center"
             android:layout_marginTop="-3dp"
             android:layout_marginLeft="-17dp"
             android:text="My name is NON"
             android:textColor="#FFFFFF"
             android:textSize="10dp" />

    </RelativeLayout>

但我需要的是这样的

你可以看到圈子必须紧密相连,但是当我使用XML视图时,我无法实现这一点.我怎样才能实现这一点,我需要onClickListeners在我的圈子中这就是为什么我使用视图

这可以通过Canvas绘图实现,我听说画布不是视图所以这会限制我给点击听众,如果我错了纠正我

更新:

我通过XML方法满足了我的需求,有没有办法通过画布绘图实现这一点,我应该发布另一个问题吗？

Answer 1

试试这个

    <?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >

        <RelativeLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" >

            <TextView
                android:id="@+id/num_txt"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:layout_marginTop="0dp"
                android:background="@drawable/bg_red"
                android:gravity="center"
                android:text="My name is NON"
                android:textColor="#FFFFFF"
                android:textSize="10dp" />

        </RelativeLayout>

    </RelativeLayout>

保存在drawable中 bg_red.xml

    <?xml version="1.0" encoding="utf-8"?>
    <shape xmlns:android="http://schemas.android.com/apk/res/android" 
        android:shape="oval">
        <corners android:radius="10dip"/>
        <stroke android:color="#FF0000" android:width="5dip"/>
        <solid android:color="#FF0000"/>
    </shape>

编辑代码

    <?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="wrap_content"
        android:layout_height="match_parent" >
         <TextView
             android:id="@+id/num_txt"
             android:layout_width="185dp"
             android:layout_height="185dp"

             android:layout_alignParentTop="true"
             android:layout_marginTop="163dp"
             android:background="@drawable/bg_red"
             android:gravity="center"
             android:text="My name is NON"
             android:textColor="#FFFFFF"
             android:layout_marginLeft="10dp"
             android:textSize="10dp" />

         <TextView
             android:id="@+id/TextView02"
             android:layout_width="90dp"
             android:layout_height="90dp"
             android:layout_alignParentRight="true"
             android:layout_alignTop="@+id/TextView01"
             android:layout_marginRight="90dp"
             android:layout_marginTop="122dp"
             android:background="@drawable/bg_red"
             android:gravity="center"
             android:text="My name is NON"
             android:textColor="#FFFFFF"
             android:textSize="10dp" />

         <TextView
             android:id="@+id/TextView01"
             android:layout_width="120dp"
             android:layout_height="120dp"
             android:layout_alignTop="@+id/num_txt"
             android:layout_toRightOf="@+id/num_txt"
             android:background="@drawable/bg_red"
             android:gravity="center"
             android:text="My name is NON"
             android:textColor="#FFFFFF"
             android:textSize="10dp" />

    </RelativeLayout>

ConstraintLayout用于徽章计数.

    <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@android:color/transparent"
        android:gravity="center">

        <ImageView
            android:id="@+id/tab_icon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:adjustViewBounds="true"
            android:background="@android:color/transparent"
            android:scaleType="centerInside"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:srcCompat="@drawable/ic_home"
            tools:layout_constraintBottom_creator="1"
            tools:layout_constraintLeft_creator="1"
            tools:layout_constraintRight_creator="1"
            tools:layout_constraintTop_creator="1" />

        <TextView
            android:id="@+id/tab_badge"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dp"
            android:background="@drawable/icon_badge"
            android:paddingBottom="1dp"
            android:paddingLeft="6dp"
            android:paddingRight="6dp"
            android:paddingTop="1dp"
            android:text="10"
            android:textAppearance="@style/TextAppearance.AppCompat.Small"
            android:textColor="@android:color/white"
            android:textSize="12dp"
            app:layout_constraintBottom_toBottomOf="@+id/tab_icon"
            tools:layout_constraintLeft_creator="1"
            android:layout_marginLeft="14dp"
            app:layout_constraintLeft_toLeftOf="@+id/tab_icon" />
    </android.support.constraint.ConstraintLayout>

Answer 2

试试这个

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.widget.TextView;

public class CircularTextView extends TextView
{
private float strokeWidth;
int strokeColor,solidColor;

public CircularTextView(Context context) {
    super(context);
}

public CircularTextView(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public CircularTextView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
}


@Override
public void draw(Canvas canvas) {

    Paint circlePaint = new Paint();
    circlePaint.setColor(solidColor);
    circlePaint.setFlags(Paint.ANTI_ALIAS_FLAG);

    Paint strokePaint = new Paint();
    strokePaint.setColor(strokeColor);
    strokePaint.setFlags(Paint.ANTI_ALIAS_FLAG);

    int  h = this.getHeight();
    int  w = this.getWidth();

    int diameter = ((h > w) ? h : w);
    int radius = diameter/2;

    this.setHeight(diameter);
    this.setWidth(diameter);

    canvas.drawCircle(diameter / 2 , diameter / 2, radius, strokePaint);

    canvas.drawCircle(diameter / 2, diameter / 2, radius-strokeWidth, circlePaint);

    super.draw(canvas);
}

public void setStrokeWidth(int dp)
{
    float scale = getContext().getResources().getDisplayMetrics().density;
    strokeWidth = dp*scale;

}

public void setStrokeColor(String color)
{
    strokeColor = Color.parseColor(color);
}

public void setSolidColor(String color)
{
    solidColor = Color.parseColor(color);

}
}

/sf/answers/2427989791/

Answer 3

<?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" >

    <TextView
         android:id="@+id/TextView02"
        android:layout_width="125dp"
        android:layout_height="125dp"
        android:layout_alignBottom="@+id/linearLayout1"
        android:layout_marginBottom="83dp"
        android:layout_toEndOf="@+id/linearLayout1"
        android:background="@drawable/circle"
        android:gravity="center"
        android:text="TextView"
        android:layout_marginEnd="5dp"
        android:orientation="vertical" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="185dp"
        android:layout_height="185dp"
        android:layout_marginStart="5dp"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true"
        android:background="@drawable/circle"
        android:gravity="center"
        android:text="TextView" 
        android:orientation="vertical" />

    <TextView
        android:id="@+id/TextView01"
        android:layout_width="90dp"
        android:layout_height="90dp"
        android:layout_alignTop="@+id/linearLayout1"
        android:layout_marginTop="113dp"
        android:layout_toEndOf="@+id/linearLayout1"
        android:background="@drawable/circle"
        android:gravity="center"
        android:text="TextView" 
        android:orientation="vertical" />

</RelativeLayout>

您可以直接为textview设置backroud或drawable。你可以使用drawablepadding等......

或者您可以使用： android:drawableStart="@drawable/ic_cab_done_holo_dark"