{"id":14707,"date":"2023-11-29T11:06:59","date_gmt":"2023-11-29T03:06:59","guid":{"rendered":"https:\/\/www.zhidianwl.com\/zhidian\/?p=14707"},"modified":"2023-11-29T11:06:59","modified_gmt":"2023-11-29T03:06:59","slug":"java%e5%bc%80%e5%8f%91%e4%b8%80%e4%b8%aa%e7%ae%80%e5%8d%95%e7%9a%84%e5%ae%89%e5%8d%93app%e6%80%8e%e4%b9%88%e5%81%9a%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.zhidianwl.com\/zhidian\/2023\/14707\/","title":{"rendered":"java\u5f00\u53d1\u4e00\u4e2a\u7b80\u5355\u7684\u5b89\u5353app\u600e\u4e48\u505a\uff1f"},"content":{"rendered":"

\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u5b66\u4e60\u5982\u4f55\u4f7f\u7528Java\u5f00\u53d1\u4e00\u4e2a\u7b80\u5355\u7684\u5b89\u5353app\u3002\u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u8bf7\u786e\u4fdd\u4f60\u5df2\u7ecf\u5b89\u88c5\u4e86Android Studio\uff0c\u8fd9\u662fGoogle\u5b98\u65b9\u652f\u6301\u7684\u5b89\u5353\u5e94\u7528\u5f00\u53d1\u8f6f\u4ef6\u3002\u4f60\u53ef\u4ee5\u4ece\u8fd9\u91cc\u4e0b\u8f7d\uff1ahttps:\/\/developer.android.com\/studio\/<\/p>\n

\u4e00\u3001\u521b\u5efa\u65b0\u9879\u76ee\uff1a<\/p>\n

1. \u6253\u5f00Android Studio\uff0c\u70b9\u51fb\u201cStart a new Android Studio project\u201d\u3002<\/p>\n

2. \u9009\u62e9\u4e00\u4e2a\u6a21\u677f\uff0c\u5bf9\u4e8e\u521d\u5b66\u8005\uff0c\u53ef\u4ee5\u9009\u62e9\u201cEmpty Activity\u201d\uff0c\u7136\u540e\u70b9\u51fb\u201cNext\u201d\u3002<\/p>\n

3. \u4e3a\u4f60\u7684\u9879\u76ee\u8f93\u5165\u540d\u79f0\u3001\u5305\u540d\uff08\u7c7b\u4f3c\u4e8e\u57df\u540d\uff0c\u4f46\u53cd\u7740\u5199\uff0c\u4f8b\u5982\uff1acom.example.myapp\uff09\uff0c\u7136\u540e\u9009\u62e9\u4f60\u7684\u9879\u76ee\u4fdd\u5b58\u4f4d\u7f6e\uff0c\u70b9\u51fb\u201cFinish\u201d\u3002<\/p>\n

\u4e8c\u3001\u9879\u76ee\u7ed3\u6784\u4e0e\u7ec4\u6210\uff1a<\/p>\n

1. app\uff1a\u9879\u76ee\u7684\u4e3b\u6587\u4ef6\u5939\u3002<\/p>\n

– build.gradle\uff1a\u7f16\u8bd1\u548c\u6784\u5efa\u8bbe\u7f6e\u3002<\/p>\n

– src\uff1a\u9879\u76ee\u7684\u4e3b\u8981\u8d44\u6e90\u548c\u6e90\u5b89\u5353app\u5f00\u53d1\u5de5\u5177<\/a>\u4ee3\u7801\u3002<\/p>\n

2. manifests\uff1a\u5b89\u5353\u8bbe\u5907\u4e0a\u5e94\u7528\u7684\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n

– AndroidManifest.xml\uff1a\u5b9a\u4e49\u5e94\u7528\u7684\u6743\u9650\uff0c\u7ec4\u4ef6\u548c\u5176\u4ed6\u5c5e\u6027\u3002<\/p>\n

3. java\uff1a\u5305\u542bJava\u7c7b\u548cViewModel\u3002<\/p>\n

– MainActivity.java\uff1a\u5e94\u7528\u4e3b\u8981\u7684\u529f\u80fd\u4ee3\u7801\u3002<\/p>\n

4. res\uff1a\u5305\u542b\u6240\u6709\u53ef\u89c6\u5143\u7d20\u7684\u8d44\u6e90\u6587\u4ef6\u5939\u3002<\/p>\n

– layout\uff1a\u754c\u9762\u6587\u4ef6\uff08XML\uff09\u3002<\/p>\n

– activity_main.xml\uff1a\u4e3b\u754c\u9762\u5e03\u5c40\u6587\u4ef6\u3002<\/p>\n

– drawable\uff1a\u56fe\u7247\u8d44\u6e90\u3002<\/p>\n

– mipmap\uff1a\u542f\u52a8\u56fe\u6807\u3002<\/p>\n

– values\uff1a\u9879\u76ee\u4e2d\u4f7f\u7528\u7684\u989c\u8272\u3001\u5c3a\u5bf8\u3001\u5b57\u4f53\u6837\u5f0f\u7b49\u3002<\/p>\n

– colors.xml\uff1a\u989c\u8272\u503c\u3002<\/p>\n

– strings.xml\uff1a\u5b57\u7b26\u4e32\u8d44\u6e90\u3002<\/p>\n

– styles.xml\uff1a\u6587\u5b57\u6837\u5f0f\u3002<\/p>\n

\u4e09\u3001\u7f16\u5199\u4ee3\u7801\uff1a<\/p>\n

1. \u5728activity_main.xml\u4e2d\u5b9a\u4e49\u5e03\u5c40\uff1a<\/p>\n

activity_main.xml\u662f\u4e3b\u5c4f\u5e55\u7684\u5e03\u5c40\u6587\u4ef6\u3002\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u754c\u9762\uff0c\u5305\u62ec\u4e00\u4e2a\u6309\u94ae\u548c\u4e00\u4e2a\u6587\u672c\u6846\u3002<\/p>\n

\u6253\u5f00activity_main.xml\u6587\u4ef6\uff0c\u7c98\u8d34\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n

“`xml<\/p>\n<\/p>\n

xmlns:tools=”http:\/\/schemas.android.com\/tools”<\/p>\n

android:layout_width=”match_parent”<\/p>\n

android:layout_height=”match_parent”<\/p>\n

android:padding=”10dp”<\/p>\n

tools:context=”.MainActivity” ><\/p>\n<\/p>\n

android:id=”@+id\/btn_click”<\/p>\n

android:layout_width=”wrap_content”<\/p>\n

android:layout_height=”wrap_content”<\/p>\n

android:layout_marginBottom=”20dp”<\/p>\n

android:layout_centerInParent=”true”<\/p>\n

android:text=”@string\/click_me” \/><\/p>\n<\/p>\n

android:id=”@+id\/tv_text”<\/p>\n

android:layout_width=”wrap_content”<\/p>\n

android:layout_height=”wrap_content”<\/p>\n

android:layout_below=”@id\/btn_click”<\/p>\n

android:layout_centerInParent=”true”<\/p>\n

\n

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

android:text=”@string\/hello_world”<\/p>\n

android:textSize=”22sp” \/><\/p>\n

“`<\/p>\n

\u4e3a\u4e86\u907f\u514d\u786c\u7f16\u7801\uff0c\u53ef\u4ee5\u5c06\u6309\u94ae\u548c\u6587\u672c\u6846\u7684\u6587\u672c\u653e\u5165strings.xml\u6587\u4ef6\u4e2d\u3002\u6253\u5f00values\/strings.xml\uff0c\u7136\u540e\u6dfb\u52a0\u8fd9\u4e24\u4e2a\u5b57\u7b26\u4e32\uff1a<\/p>\n

“`xml<\/p>\n

\n

SimpleApp<\/p>\n

Hello World!<\/p>\n

Click Me!<\/p>\n<\/p>\n

“`<\/p>\n

2. \u4e3a\u6309\u94ae\u6dfb\u52a0\u70b9\u51fb\u4e8b\u4ef6\uff1a<\/p>\n

\u63a5\u4e0b\u6765\uff0c\u5728MainActivity.java\u6587\u4ef6\u4e2d\uff0c\u6211\u4eec\u5c06\u4e3a\u6309\u94ae\u6dfb\u52a0\u4e00\u4e2a\u70b9\u51fb\u4e8b\u4ef6\uff0c\u6539\u53d8TextView\u7684\u6587\u672c\u5185\u5bb9\u3002<\/p>\n

\u6253\u5f00MainActivity.java\u6587\u4ef6\uff0c\u7c98\u8d34\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n

“`java<\/p>\n

package com.example.simpleapp;<\/p>\n

import androidx.appcompat.app.AppCompatActivity;<\/p>\n

import android.os.Bundle;<\/p>\n

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

import android.widget.Button;<\/p>\n

import android.widget.TextView;<\/p>\n

public class MainActivity extends AppCompatActivity {<\/p>\n

private Button btnClick;<\/p>\n

private TextView tvText;<\/p>\n

@Override<\/p>\n

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

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

setContentView(R.layout.activity_main);<\/p>\n

btnClick = findViewById(R.id.btn_click);<\/p>\n

tvText = findViewById(R.id.tv_text);<\/p>\n

btnClick.setOnClickListener(new View.OnClickListener() {<\/p>\n

@Override<\/p>\n

public void onClick(View view) {\u5b89\u5353app\u5236\u4f5c<\/a><\/p>\n

tvText.setText(“You clicked the button!”);<\/p>\n

}<\/p>\n

});<\/p>\n

}<\/p>\n

}<\/p>\n

“`<\/p>\n

\u73b0\u5728\uff0c\u4f60\u5df2\u7ecf\u521b\u5efa\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u5b89\u5353app\uff0c\u5f53\u4f60\u70b9\u51fb\u6309\u94ae\u65f6\uff0c\u6587\u672c\u6846\u4e2d\u7684\u6587\u672c\u5c06\u6539\u53d8\u3002<\/p>\n

\u56db\u3001\u8fd0\u884c\u548c\u6d4b\u8bd5\u5e94\u7528\uff1a<\/p>\n

\u5728Android Studio\u5de5\u5177\u680f\u4e2d\uff0c\u70b9\u51fb\u8fd0\u884c\u6309\u94ae\uff08\u7eff\u8272\u4e09\u89d2\u5f62\u56fe\u6807\uff09\uff0c\u9009\u62e9\u4e00\u4e2a\u5b89\u5353\u8bbe\u5907\u6216\u6a21\u62df\u5668\u6765\u8fd0\u884c\u4f60\u7684\u5e94\u7528\u3002\u4f60\u73b0\u5728\u53ef\u4ee5\u770b\u5230app\u8fd0\u884c\u5728\u8bbe\u5907\u4e0a\uff0c\u5f53\u4f60\u70b9\u51fb\u6309\u94ae\u65f6\uff0c\u6587\u672c\u6846\u7684\u6587\u672c\u5c06\u53d1\u751f\u53d8\u5316\u3002<\/p>\n

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