Android涓娇鐢–anvas鍜孭aint缁樺埗涓€涓畨鍗撴満鍣ㄤ汉

Posted 2021-03-17

鏍囩锛?a href='http://www.mamicode.com/so/1/xtend' title='xtend'>xtend   鐢靛瓙   image   娣诲姞   ref   state   contex   idg   addview   

鍦烘櫙

鍦ˋndroid涓敾绗斾娇鐢≒aint绫伙紝鐢诲竷浣跨敤Canvas绫绘潵琛ㄧず銆?/p>

缁樺浘鐨勫熀鏈楠?/p>

棣栧厛缂栧啓涓€涓户鎵胯嚜View鐨勮嚜瀹氫箟View绫伙紝鐒跺悗閲嶅啓鍏秓nDraw鏂规硶锛屾渶鍚庢妸鑷畾涔夌殑view娣诲姞鍒癮ctvity涓€?/p>

鏁堟灉

 

 

https://blog.csdn.net/badao_liumang_qizhi
鍏虫敞鍏紬鍙?
闇搁亾鐨勭▼搴忕尶
鑾峰彇缂栫▼鐩稿叧鐢靛瓙涔︺€佹暀绋嬫帹閫佷笌鍏嶈垂涓嬭浇銆?/p>

瀹炵幇

棣栧厛鍦ㄨ鏄剧ず鐨凙ctivity鐨勫竷灞€鏂囦欢涓慨鏀逛负FrameLayout骞舵坊鍔犱竴涓猧d銆?

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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:id="@+id/frameLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".RobitActivity">

</FrameLayout>

鐒跺悗鍦ˋCtivity涓柊寤鸿嚜瀹氫箟View绫伙紝杩欓噷鏄疢yView浣垮叾缁ф壙View绫诲苟缂栧啓涓€涓甫涓€涓弬鏁扮殑鏋勯€犳柟娉曞拰閲嶅啓onDraw鏂规硶銆?/p>

鍦ㄩ噸鍐欑殑onDraw鏂规硶涓柊寤虹敾绗斿苟璁剧疆涓€浜涘睘鎬э紝鐒跺悗浣跨敤鐢荤瑪鍦ㄧ敾甯冧笂鎸囧畾鐨勪綅缃粯鍒跺浘褰€?/p>

package com.badao.alarmmanager;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.os.Bundle;
import android.view.View;
import android.widget.FrameLayout;

public class RobitActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_robit);
        FrameLayout frameLayout= (FrameLayout) findViewById(R.id.frameLayout);  //鑾峰彇甯у竷灞€绠＄悊鍣?/span>
        frameLayout.addView(new MyView(this));  //灏嗚嚜瀹氫箟瑙嗗浘鐨勫唴閮ㄧ被娣诲姞鍒板竷灞€绠＄悊鍣ㄤ腑
    }

    private class MyView extends View {
        public MyView(Context context) {
            super(context);
        }

        @Override
        protected void onDraw(Canvas canvas) {
            super.onDraw(canvas);
            Paint paint=new Paint(); //榛樿璁剧疆鍒涘缓涓€涓敾绗?/span>
            paint.setAntiAlias(true); //浣跨敤鎶楅敮榻垮姛鑳?/span>
            paint.setColor(0xFFA4C739); //璁剧疆鐢荤瑪鐨勯鑹蹭负缁胯壊
            //缁樺埗鏈哄櫒浜虹殑澶?/span>
            RectF rectf_head=new RectF(10, 10, 100, 100);
            rectf_head.offset(90, 20);
            canvas.drawArc(rectf_head, -10, -160, false, paint); //缁樺埗寮?            //缁樺埗鐪肩潧
            paint.setColor(Color.WHITE); //璁剧疆鐢荤瑪鐨勯鑹蹭负鐧借壊
            canvas.drawCircle(125, 53, 4, paint); //缁樺埗鍦?/span>
            canvas.drawCircle(165, 53, 4, paint); //缁樺埗鍦?/span>
            paint.setColor(0xFFA4C739); //璁剧疆鐢荤瑪鐨勯鑹蹭负缁胯壊
            //缁樺埗澶╃嚎
            paint.setStrokeWidth(2); //璁剧疆绗旇Е鐨勫搴?/span>
            canvas.drawLine(110, 15, 125, 35, paint); //缁樺埗绾?/span>
            canvas.drawLine(180, 15, 165, 35, paint); //缁樺埗绾?            //缁樺埗韬綋
            canvas.drawRect(100, 75, 190, 150, paint); //缁樺埗鐭╁舰
            RectF rectf_body=new RectF(100,140,190,160);
            canvas.drawRoundRect(rectf_body, 10, 10, paint); //缁樺埗鍦嗚鐭╁舰
            //缁樺埗鑳宠唺
            RectF rectf_arm=new RectF(75,75,95,140);
            canvas.drawRoundRect(rectf_arm, 10, 10, paint); //缁樺埗宸︿晶鐨勮兂鑶?/span>
            rectf_arm.offset(120, 0);       //璁剧疆鍦╔杞翠笂鍋忕Щ120鍍忕礌
            canvas.drawRoundRect(rectf_arm, 10, 10, paint); //缁樺埗鍙充晶鐨勮兂鑶?            //缁樺埗鑵?/span>
            RectF rectf_leg=new RectF(115,150,135,200);
            canvas.drawRoundRect(rectf_leg, 10, 10, paint); //缁樺埗宸︿晶鐨勮吙
            rectf_leg.offset(40, 0);       //璁剧疆鍦╔杞翠笂鍋忕Щ40鍍忕礌
            canvas.drawRoundRect(rectf_leg, 10, 10, paint); //缁樺埗鍙充晶鐨勮吙
        }
    }
}