{"id":34083,"date":"2024-05-23T12:06:09","date_gmt":"2024-05-23T04:06:09","guid":{"rendered":"https:\/\/www.zhidianwl.com\/zhidian\/?p=34083"},"modified":"2024-05-23T12:06:09","modified_gmt":"2024-05-23T04:06:09","slug":"%e4%b8%80%e4%b8%aa%e7%ae%80%e6%98%93%e5%ae%89%e5%8d%93%e8%a7%a6%e6%91%b8%e5%b1%8fapp%e5%bc%80%e5%8f%91%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/www.zhidianwl.com\/zhidian\/2024\/34083\/","title":{"rendered":"\u4e00\u4e2a\u7b80\u6613\u5b89\u5353\u89e6\u6478\u5c4fapp\u5f00\u53d1\u4ecb\u7ecd"},"content":{"rendered":"

\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u7b80\u8981\u4ecb\u7ecd\u5982\u4f55\u5f00\u53d1\u4e00\u4e2a\u7b80\u6613\u7684Android\u89e6\u6478\u5c4f\u5e94\u7528\u7a0b\u5e8f\u3002\u6211\u4eec\u5c06\u4ece\u6982\u5ff5\u4e86\u89e3\u5f00\u59cb\uff0c\u9010\u6b65\u8bb2\u89e3\u5982\u4f55\u4f7f\u7528\u57fa\u672c\u5de5\u5177\u6784\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u89e6\u6478\u5c4f\u5e94\u7528\u3002<\/p>\n

1. \u6982\u5ff5\u4e86\u89e3\uff1a<\/p>\n

\u5728\u5f00\u53d1Android\u89e6\u6478\u5c4f\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u6838\u5fc3\u6982\u5ff5\u662f\u5904\u7406\u89e6\u6478\u4e8b\u4ef6\u3002\u5728Android\u4e2d\uff0c\u89e6\u6478\u4e8b\u4ef6\u7684\u5904\u7406\u662f\u5728View\u5bf9\u8c61\u7684\u57fa\u7840\u4e0a\u5b9e\u73b0\u7684\u3002\u56e0\u6b64\uff0c\u5728\u7f16\u5199\u89e6\u6478\u5c4f\u5e94\u7528\u65f6\uff0c\u9700\u8981\u6269\u5c55View\u7c7b\uff0c\u91cd\u5199\u5176\u4e2d\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\uff0c\u4ee5\u4fbf\u6355\u83b7\u89e6\u6478\u4e8b\u4ef6\u5e76\u5bf9\u5176\u6267\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\u3002<\/p>\n

2. \u5f00\u53d1\u73af\u5883\u642d\u5efa\uff1a<\/p>\n

\u8981\u5f00\u59cb\u5f00\u53d1Android\u5e94\u7528\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5Android Studio\u3002Android Studi\u5b89\u5353app<\/a>o\u662f\u8c37\u6b4c\u63a8\u51fa\u7684\u5b98\u65b9IDE\uff08\u96c6\u6210\u5f00\u53d1\u73af\u5883\uff09\uff0c\u4e13\u4e3aAndroid\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u800c\u8bbe\u8ba1\u3002\u4f60\u53ef\u4ee5\u5728[\u5b98\u65b9\u4e0b\u8f7d\u9875\u9762](https:\/\/developer.android.com\/studio)\u4e0b\u8f7d\u5e76\u5b89\u88c5\u3002<\/p>\n

3. \u65b0\u5efa\u9879\u76ee\uff1a<\/p>\n

\u5b89\u88c5\u5b8c\u6210Android Studio\u4e4b\u540e\uff0c\u6253\u5f00\u5e76\u521b\u5efa\u4e00\u4e2a\u65b0\u9879\u76ee\u3002\u9009\u62e9 “Empty Activity” \u6a21\u677f\uff0c\u7136\u540e\u6309\u7167\u5411\u5bfc\u6240\u793a\u7684\u6b65\u9aa4\u547d\u540d\u9879\u76ee\u53ca\u76f8\u5e94\u914d\u7f6e\u3002<\/p>\n

4. \u521b\u5efa\u81ea\u5b9a\u4e49View\uff1a<\/p>\n

\u5728\u9879\u76ee\u7684 “src\/main\/java” \u76ee\u5f55\u4e0b\u65b0\u5efa\u4e00\u4e2a\u540d\u4e3a “CustomTouchListener” \u7684\u7c7b\u6587\u4ef6\u3002\u8fd9\u4e2a\u7c7b\u5c06\u6269\u5c55\u81ea “View” \u7c7b\uff0c\u6211\u4eec\u5c06\u5728\u8fd9\u4e2a\u7c7b\u4e2d\u5904\u7406\u89e6\u5b89\u5353APP\u5f00\u53d1<\/a>\u6478\u4e8b\u4ef6\u3002<\/p>\n

“`java<\/p>\n

import android.content.Context;<\/p>\n

import android.graphics.Canvas;<\/p>\n

impor<\/p>\n

<\/figure>\n<\/p>\n

t android.graphics.Color;<\/p>\n

import android.graphics.Paint;<\/p>\n

import android.view.MotionEvent;<\/p>\n

import android.view.View;<\/p>\n

public class CustomTouchListener extends View {<\/p>\n

private Paint paint;<\/p>\n

\/\/ \u5728\u8fd9\u4e2a\u6784\u9020\u51fd\u6570\u91cc\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u57fa\u672c\u7684View\u5c5e\u6027<\/p>\n

public CustomTouchListener(Context context) {<\/p>\n

super(context);<\/p>\n

paint = new Paint();<\/p>\n

paint.setColor(Color.RED);<\/p>\n

}<\/p>\n

@Override<\/p>\n

protected void onDraw(Canvas canvas) {<\/p>\n

\/\/ \u5728\u753b\u5e03\u4e0a\u7ed8\u5236\u4e00\u4e2a\u5706\u5f62\u4f5c\u4e3a\u89e6\u6478\u70b9\u7684\u4f4d\u7f6e\u8868\u793a<\/p>\n

canvas.drawCircle(x, y, 50, paint);<\/p>\n

}<\/p>\n

}<\/p>\n

“`<\/p>\n

5. \u5904\u7406\u89e6\u6478\u4e8b\u4ef6\uff1a<\/p>\n

\u4e3a\u4e86\u6355\u83b7\u89e6\u6478\u4e8b\u4ef6\uff0c\u6211\u4eec\u9700\u8981\u91cd\u5199 “onTouchEvent” \u65b9\u6cd5\u3002\u5728\u8fd9\u4e2a\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u83b7\u53d6\u4e8b\u4ef6\u7684\u7c7b\u578b\uff08\u6309\u4e0b\u3001\u79fb\u52a8\u3001\u91ca\u653e\u7b49\uff09\u548c\u89e6\u6478\u70b9\u7684\u5750\u6807\u3002\u7136\u540e\u6211\u4eec\u66f4\u65b0\u5706\u5f62\u7684\u5750\u6807\u5e76\u8c03\u7528 “invalidate()” \u65b9\u6cd5\u91cd\u7ed8View\u3002<\/p>\n

“`java<\/p>\n

private float x;<\/p>\n

private float y;<\/p>\n

@Override<\/p>\n

public boolean onTouchEvent(MotionEvent event) {<\/p>\n

x = event.getX();<\/p>\n

y = event.getY();<\/p>\n

\/\/ \u6839\u636e\u89e6\u6478\u4e8b\u4ef6\u7684\u4e0d\u540c\u7c7b\u578b\u6267\u884c\u76f8\u5e94\u64cd\u4f5c<\/p>\n

switch (event.getAction()) {<\/p>\n

case MotionEvent.ACTION_DOWN:<\/p>\n

\/\/ \u624b\u6307\u6309\u4e0b\u65f6\u66f4\u65b0\u5706\u5f62\u4f4d\u7f6e<\/p>\n

break;<\/p>\n

case MotionEvent.ACTION_MOVE:<\/p>\n

\/\/ \u624b\u6307\u79fb\u52a8\u65f6\u66f4\u65b0\u5706\u5f62\u4f4d\u7f6e<\/p>\n

break;<\/p>\n

case MotionEvent.ACTION_UP:<\/p>\n

\/\/ \u624b\u6307\u62ac\u8d77\u65f6\u66f4\u65b0\u5706\u5f62\u4f4d\u7f6e<\/p>\n

break;<\/p>\n

}<\/p>\n

invalidate(); \/\/ \u8bf7\u6c42\u91cd\u7ed8View<\/p>\n

return true;<\/p>\n

}<\/p>\n

“`<\/p>\n

6. \u5728Activity\u4e2d\u4f7f\u7528\u81ea\u5b9a\u4e49View\uff1a<\/p>\n

\u5728\u6211\u4eec\u7684\u4e3bActivity\u6587\u4ef6\u4e2d\u5c06\u81ea\u5b9a\u4e49\u7684 CustomTouchListener \u6dfb\u52a0\u5230\u7528\u6237\u754c\u9762\u4e2d\u3002\u4e3a\u6b64\uff0c\u8bf7\u6253\u5f00 “src\/main\/java” \u76ee\u5f55\u4e0b\u5bf9\u5e94\u7684Activity\u6587\u4ef6\uff08\u4f8b\u5982 “MainActivity.java” \uff09\uff0c\u5c06 setContentView \u65b9\u6cd5\u8fdb\u884c\u66ff\u6362\u3002<\/p>\n

“`java<\/p>\n

@Override<\/p>\n

protected void onCreate(Bundle savedInstanceState) {<\/p>\n

super.onCreate(savedInstanceState);<\/p>\n

\/\/ \u521b\u5efa\u81ea\u5b9a\u4e49View\u5bf9\u8c61\u5e76\u5c06\u5176\u4f5c\u4e3aActivity\u5e03\u5c40<\/p>\n

CustomTouchListener customTouchListener = new CustomTouchListener(this);<\/p>\n

setContentView(customTouchListener);<\/p>\n

}<\/p>\n

“`<\/p>\n

7. \u8fd0\u884c\u5e94\u7528\uff1a<\/p>\n

\u73b0\u5728\uff0c\u4f60\u5df2\u7ecf\u6210\u529f\u521b\u5efa\u4e86\u4e00\u4e2a\u7b80\u5355\u7684Android\u89e6\u6478\u5c4f\u5e94\u7528\u7a0b\u5e8f\u3002\u70b9\u51fbAndroid Studio\u9876\u90e8\u7684\u8fd0\u884c\u6309\u94ae\uff0c\u5c06\u9879\u76ee\u90e8\u7f72\u5230\u4e00\u4e2a\u865a\u62df\u8bbe\u5907\uff08AVD\uff09\u6216\u8005\u4f7f\u7528USB\u8fde\u63a5\u7684\u5b9e\u4f53\u8bbe\u5907\u4e0a\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n

\u603b\u7ed3\uff1a<\/p>\n

\u5728\u8fd9\u4e2a\u7b80\u6613\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u4e86\u89e3\u4e86\u5982\u4f55\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684Android\u89e6\u6478\u5c4f\u5e94\u7528\u7a0b\u5e8f\uff0c\u5904\u7406\u89e6\u6478\u4e8b\u4ef6\u5e76\u5728\u81ea\u5b9a\u4e49View\u4e0a\u7ed8\u5236\u5bf9\u8c61\u3002\u5f53\u7136\uff0c\u8fd9\u4ec5\u4ec5\u662f\u5165\u95e8\u793a\u4f8b\uff0c\u5728\u6b64\u57fa\u7840\u4e0a\u4f60\u53ef\u4ee5\u6839\u636e\u4f60\u7684\u9700\u6c42\u6765\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u529f\u80fd\u3002\u5e0c\u671b\u8fd9\u4e2a\u6587\u7ae0\u53ef\u4ee5\u5e2e\u52a9\u4f60\u5165\u95e8Android\u89e6\u6478\u5c4f\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u7b80\u8981\u4ecb\u7ecd\u5982\u4f55\u5f00\u53d1\u4e00\u4e2a\u7b80\u6613\u7684Android\u89e6\u6478\u5c4f\u5e94\u7528\u7a0b\u5e8f\u3002\u6211\u4eec\u5c06\u4ece\u6982\u5ff5\u4e86\u89e3\u5f00\u59cb\uff0c\u9010\u6b65\u8bb2\u89e3\u5982\u4f55\u4f7f\u7528\u57fa\u672c\u5de5\u5177\u6784\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u89e6\u6478\u5c4f\u5e94\u7528\u30021. \u6982\u5ff5\u4e86\u89e3\uff1a\u5728\u5f00\u53d1Android\u89e6\u6478\u5c4f\u5e94\u7528\u7a0b\u5e8f<\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3320,32439,32440,1332,16860],"class_list":{"0":"post-34083","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-zuoapp","7":"tag-3320","8":"tag-app","10":"tag-1332","11":"tag-16860"},"_links":{"self":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts\/34083","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/comments?post=34083"}],"version-history":[{"count":1,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts\/34083\/revisions"}],"predecessor-version":[{"id":34091,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts\/34083\/revisions\/34091"}],"wp:attachment":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/media?parent=34083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/categories?post=34083"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/tags?post=34083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}