{"id":905,"date":"2017-03-08T20:39:25","date_gmt":"2017-03-08T12:39:25","guid":{"rendered":"http:\/\/www.yusian.com\/blog\/?p=905"},"modified":"2017-03-08T20:41:41","modified_gmt":"2017-03-08T12:41:41","slug":"android%e8%87%aa%e5%ae%9a%e4%b9%89view%e9%80%9a%e8%bf%87%e8%a7%a6%e6%91%b8%e4%ba%8b%e4%bb%b6%e7%a7%bb%e5%8a%a8view%e7%9a%84%e4%bd%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/www.yusian.com\/blog\/android\/2017\/03\/08\/203925905.html","title":{"rendered":"Android\u81ea\u5b9a\u4e49View\u901a\u8fc7\u89e6\u6478\u4e8b\u4ef6\b\b\u79fb\u52a8View\u7684\u4f4d\u7f6e"},"content":{"rendered":"<p>1\u3001\u4e0a\u56fe\u7ed9\u5403\u74dc\u7fa4\u4f17<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.yusian.com\/blog\/wp-content\/uploads\/2017\/03\/20170308202944.jpg\" alt=\"\" width=\"360\" height=\"168\" class=\"alignnone size-full wp-image-906\" \/><\/p>\n<p><ins datetime=\"2017-03-08T12:40:35+00:00\">\u8fd9\u4e2a\u5b89\u5353\u5c0f\u673a\u5668\u4eba\u662f\u53ef\u4ee5\u901a\u8fc7\u89e6\u6478\u5c4f\u5e55\u800c\u8ddf\u7740\u4f60\u624b\u6307\u52a8\u7684\uff01\uff01<\/ins><\/p>\n<p>2\u3001Demo\u57fa\u672c\u8bbe\u8ba1\u601d\u8def<br \/>\n2.1\u3001\u81ea\u5b9a\u4e49\u4e00\u4e2aGameView\u7ee7\u627f\u81eaView\uff1b<br \/>\n2.2\u3001\u5728View\u4e0a\u7ed8\u5236\u4e00\u4e2aBitmap\u5bf9\u8c61\uff0c\u540e\u7eed\u4f1a\u901a\u8fc7\u89e6\u6478\u4e8b\u4ef6\u6765\u6539\u53d8\u8be5\u56fe\u7684\u4f4d\u7f6e\uff1b<br \/>\n2.3\u3001\u76d1\u542cActivity\u7684onTouchEvent\u4e8b\u4ef6\uff0c\u5c06\u4e8b\u4ef6\u53d1\u751f\u7684\u5750\u6807\u4f20\u9012\u7ed9\u81ea\u5b9a\u4e49View\uff1b<br \/>\n2.4\u3001\u81ea\u5b9a\u4e49View\u4e2d\u901a\u8fc7\u63a5\u6536\u5230\u7684\u5750\u6807\u4f4d\u7f6e\uff0c\u5b9e\u65f6\u6539\u53d8Bitmap\u6240\u5904\u7684\u4f4d\u7f6e\uff0c\u5b9e\u73b0\u7c7b\u578b\u79fb\u52a8\u67d0\u5bf9\u8c61\u7684\u529f\u80fd\uff1b<\/p>\n<p>3\u3001\u5173\u952e\u4ee3\u7801<br \/>\n3.1\u3001\u81ea\u5b9a\u4e49View\uff1aGameView<\/p>\n<pre line=\"1\" lang=\"java\">package com.yusian.event.game;\n\nimport android.content.Context;\nimport android.graphics.Bitmap;\nimport android.graphics.BitmapFactory;\nimport android.graphics.Canvas;\nimport android.util.AttributeSet;\nimport android.view.View;\n\n\/**\n * Created by Sian on 2017\/3\/8.\n *\/\n\npublic class GameView extends View {\n\n    Bitmap bitmap = null;\n    private float bitmapX, bitmapY;\n\n    public void setBitmapPoint(float x, float y){\n        this.bitmapX = x;\n        this.bitmapY = y;\n        \/\/ \u4f7f\u7528View\u7684invalidate()\u65b9\u6cd5\u5237\u65b0\u9875\u9762\uff0c\u4f7f\u4e4b\u8c03\u7528onDraw()\u65b9\u6cd5\n        this.invalidate();\n    }\n\n    \/\/ \u5e0c\u671b\u5728XML\u5e03\u5c40\u6587\u4ef6\u4e2d\u6dfb\u52a0\u63a7\u4ef6\uff0c\u5b9e\u73b0\u8be5\u6784\u9020\u65b9\u6cd5\n    public GameView(Context context, AttributeSet attrs){\n        super(context, attrs);\n        \/\/ \u53d6\u51fa\u56fe\u7247id\n        int id = com.yusian.event.R.mipmap.ic_launcher;\n        \/\/ \u4f7f\u7528BitmapFactory\u7684\u9759\u6001\u65b9\u6cd5decodeResoure()\u751f\u6210Bitmap\u56fe\u7247\n        \/\/ view\u7684getResource()\u65b9\u6cd5\u53ef\u53d6\u5230\u5f53\u524d\u8d44\u6599\u5305\n        bitmap = BitmapFactory.decodeResource(getResources(), id);\n    }\n\n    @Override\n    \/\/ \u9875\u9762\u521b\u5efa\u6216\u88ab\u5237\u65b0\u65f6\u88ab\u8c03\u7528\n    protected void onDraw(Canvas canvas) {\n        super.onDraw(canvas);\n        \/\/ \u753b\u5e03\u4e0a\u7ed8\u5236\u4e00\u4e2a\u4f4d\u56fe\n        canvas.drawBitmap(bitmap, bitmapX, bitmapY, null);\n    }\n}<\/pre>\n<p>3.2\u3001\bXML<!--more--><\/p>\n<pre line=\"1\" lang=\"java\"><?xml version=\"1.0\" encoding=\"utf-8\"?>\n<LinearLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n    xmlns:tools=\"http:\/\/schemas.android.com\/tools\"\n    android:layout_width=\"match_parent\"\n    android:layout_height=\"match_parent\"\n    tools:context=\"com.yusian.event.MainActivity\">\n\n    <com.yusian.event.game.GameView\n        android:id=\"@+id\/gameView\"\n        android:layout_width=\"match_parent\"\n        android:layout_height=\"match_parent\" \/>\n\n<\/LinearLayout><\/pre>\n<p>3.3\u3001Activity<\/p>\n<pre line=\"1\" lang=\"java\">package com.yusian.event;\n\nimport android.support.v7.app.AppCompatActivity;\nimport android.os.Bundle;\nimport android.view.MotionEvent;\n\nimport com.yusian.event.game.GameView;\n\npublic class MainActivity extends AppCompatActivity {\n    GameView gameView;\n    @Override\n    protected void onCreate(Bundle savedInstanceState) {\n        super.onCreate(savedInstanceState);\n        setContentView(R.layout.activity_main);\n        gameView = (GameView)findViewById(R.id.gameView);\n    }\n\n    @Override\n    public boolean onTouchEvent(MotionEvent event) {\n        float x = event.getX();\n        float y = event.getY() - 250;\n        this.gameView.setBitmapPoint(x, y);\n        return super.onTouchEvent(event);\n    }\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>1\u3001\u4e0a\u56fe\u7ed9\u5403\u74dc\u7fa4\u4f17 \u8fd9\u4e2a\u5b89\u5353\u5c0f\u673a\u5668\u4eba\u662f\u53ef\u4ee5\u901a\u8fc7\u89e6\u6478\u5c4f\u5e55\u800c\u8ddf\u7740\u4f60\u624b\u6307\u52a8\u7684\uff01\uff01 2\u3001Demo\u57fa\u672c\u8bbe\u8ba1\u601d\u8def 2.1\u3001\u81ea\u5b9a\u4e49\u4e00\u4e2aGameView\u7ee7\u627f\u81eaView\uff1b 2.2\u3001\u5728View\u4e0a\u7ed8\u5236\u4e00\u4e2aBitmap\u5bf9\u8c61\uff0c\u540e\u7eed\u4f1a\u901a\u8fc7\u89e6\u6478\u4e8b\u4ef6\u6765\u6539\u53d8\u8be5\u56fe\u7684\u4f4d\u7f6e\uff1b 2.3\u3001\u76d1\u542cActivity\u7684onTouchEvent\u4e8b\u4ef6\uff0c\u5c06\u4e8b\u4ef6\u53d1\u751f\u7684\u5750\u6807\u4f20\u9012\u7ed9\u81ea\u5b9a\u4e49View\uff1b 2.4\u3001\u81ea\u5b9a\u4e49View\u4e2d\u901a\u8fc7\u63a5\u6536\u5230\u7684\u5750\u6807\u4f4d\u7f6e\uff0c\u5b9e\u65f6\u6539\u53d8Bitmap\u6240\u5904\u7684\u4f4d\u7f6e\uff0c\u5b9e\u73b0\u7c7b\u578b\u79fb\u52a8\u67d0\u5bf9\u8c61\u7684\u529f\u80fd\uff1b 3\u3001\u5173\u952e\u4ee3\u7801 3.1\u3001\u81ea\u5b9a\u4e49View\uff1aGameView package com.yusian.event.game; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.util.AttributeSet; import android.view.View; \/** * Created by Sian on 2017\/3\/8. *\/ public class GameView extends View { Bitmap bitmap = null; private float bitmapX, bitmapY; public void setBitmapPoint(float x, float y){ this.bitmapX = x; this.bitmapY [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[33],"class_list":["post-905","post","type-post","status-publish","format-standard","hentry","category-android","tag-33"],"_links":{"self":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts\/905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/comments?post=905"}],"version-history":[{"count":0,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts\/905\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/media?parent=905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/categories?post=905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/tags?post=905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}