{"id":9610,"date":"2023-09-26T11:07:10","date_gmt":"2023-09-26T03:07:10","guid":{"rendered":"https:\/\/www.zhidianwl.com\/zhidian\/?p=9610"},"modified":"2023-09-26T11:07:10","modified_gmt":"2023-09-26T03:07:10","slug":"idea%e5%bc%80%e5%8f%91%e5%ae%89%e5%8d%93%e9%9f%b3%e4%b9%90app%e5%8f%af%e8%a1%8c%e5%98%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.zhidianwl.com\/zhidian\/2023\/9610\/","title":{"rendered":"idea\u5f00\u53d1\u5b89\u5353\u97f3\u4e50app\u53ef\u884c\u561b\uff1f"},"content":{"rendered":"<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u6559\u4f60\u5982\u4f55\u4f7f\u7528 IntelliJ IDEA \u5f00\u53d1\u4e00\u4e2a\u7b80\u5355\u7684 Android \u97f3\u4e50\u64ad\u653e\u5668\u5e94\u7528\u3002\u6211\u4eec\u5c06\u8bb2\u89e3\u5982\u4f55\u521b\u5efa\u4e00\u4e2a\u7528\u6237\u754c\u9762\u3001\u5b9e\u73b0\u97f3\u4e50\u64ad\u653e\u529f\u80fd\u4ee5\u53ca\u7ba1\u7406\u97f3\u4e50\u6587\u4ef6\u3002<\/p>\n<p>1. \u73af\u5883\u51c6\u5907:<\/p>\n<p>\u9996\u5148\uff0c\u786e\u4fdd\u4f60\u5df2\u7ecf\u5b89\u88c5\u4e86 IntelliJ IDEA \u548c Android Studio\uff08\u5305\u542b Android SDK\uff09\u3002\u8fd9\u91cc\u6211\u4eec\u9ed8\u8ba4\u4f60\u5df2\u7ecf\u914d\u7f6e\u597d\u4e86\u57fa\u672c\u7684\u5f00\u53d1\u73af\u5883\u3002<\/p>\n<p>2. \u521b\u5efa\u65b0\u9879\u76ee:<\/p>\n<p>\u5728 IntelliJ IDEA \u4e2d\uff0c\u9009\u62e9 &#8220;File&#8221; -&gt; &#8220;New&#8221; -&gt; &#8220;Project&#8230;&#8221;, \u9009\u62e9 &#8220;Android&#8221; \u7c7b\u578b\uff0c\u7136\u540e\u70b9\u51fb &#8220;Next&#8221;\u3002\u5728\u63a5\u4e0b\u6765\u7684\u754c\u9762\u4e2d\u4e3a\u4f60\u7684\u9879\u76ee\u53d6\u4e00\u4e2a\u540d\u5b57\u548c\u9009\u62e9\u4e00\u4e2a\u5b58\u653e\u8def\u5f84\uff0c\u70b9\u51fb &#8220;Finish&#8221;\uff0c\u7b49\u5f85\u9879\u76ee\u521b\u5efa\u5b8c\u6210\u3002<\/p>\n<p>3. \u6dfb\u52a0\u7cfb\u7edf\u6743\u9650:<\/p>\n<p>\u56e0\u4e3a\u6211\u4eec\u9700\u8981\u8bfb\u53d6\u8bbe\u5907\u4e0a\u7684\u97f3\u4e50\u6587\u4ef6\uff0c\u6211\u4eec\u9700\u8981\u5728 AndroidManifest.xml \u6587\u4ef6\u4e2d\u6dfb\u52a0 READ_EXTERNAL_STORAGE \u6743\u9650\u3002\u5728 manifest \u6807\u7b7e\u5185\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>&#8220;`xml<\/p>\n<\/p>\n<p>&#8220;`<\/p>\n<p>4. \u521b\u5efa\u5e03\u5c40\u6587\u4ef6:<\/p>\n<p>\u5728\u9879\u76ee\u7684 &#8220;res\/layout&#8221; \u76ee\u5f55\u4e0b\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a &#8220;activity_main.xml&#8221; \u7684\u5e03\u5c40\u6587\u4ef6\u3002\u7136\u540e\u5728\u8be5\u6587\u4ef6\u4e2d\u6dfb\u52a0\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>&#8220;`xml<\/p>\n<\/p>\n<p>    android:layout_width=&#8221;match_parent&#8221;<\/p>\n<p>    android:layout_height=&#8221;match_parent&#8221;&gt;<\/p>\n<\/p>\n<p>        android:id=&#8221;@+id\/music_list&#8221;<\/p>\n<p>        android:layout_width=&#8221;match_parent&#8221;<\/p>\n<p>        android:layout_height=&#8221;wrap_content&#8221;<\/p>\n<p>        android:layout_above=&#8221;@+id\/play_pause&#8221;<\/p>\n<p>        android:layout_alignParentTop=&#8221;true&#8221; \/&gt;<\/p>\n<\/p>\n<p>        android:id=&#8221;@+id\/play_pause&#8221;<\/p>\n<p>        android:layout_width=&#8221;wrap_content&#8221;<\/p>\n<p>        android:layout_height=&#8221;wrap_content&#8221;<\/p>\n<p>        android:layout_centerHorizontal=&#8221;true&#8221;<\/p>\n<p>        android:layout_alignParentBottom=&#8221;true&#8221;<\/p>\n<p>        android:text=&#8221;\u64ad\u653e \/ \u6682\u505c&#8221; \/&gt;<\/p>\n<p><p>&#8220;`<\/p>\n<p>5. \u5b9e\u73b0\u97f3\u4e50\u64ad\u653e\u529f\u80fd:<\/p>\n<p>\u5728\u9879\u76ee\u7684 &#8220;src\/main\/java&#8221; \u76ee\u5f55\u4e0b\uff0c\u627e\u5230 MainActivity \u6587\u4ef6\uff0c\u5b8c\u6210\u4ee5\u4e0b\u64cd\u4f5c\uff1a<\/p>\n<p>5.1 \u5bfc\u5165\u6240\u9700\u7684\u7c7b:<\/p>\n<p>&#8220;`java<\/p>\n<p>import android.Manifest;<\/p>\n<p>import android.content.pm.PackageManager;<\/p>\n<p>import android.media.MediaPlayer;<\/p>\n<p>import android.os.Bundle;<\/p>\n<p>import android.widget.Button;<\/p>\n<p>import android.widget.ListView;<\/p>\n<p>import androidx.appcompat.app.AppCompatActivity;<\/p>\n<p>import androidx.core.app.ActivityCompat;<\/p>\n<p>&#8220;`<\/p>\n<p>5.2 \u5728 MainActivity \u7c7b\u4e2d\u5b9a\u4e49\u6240\u9700\u7684\u53d8\u91cf:<\/p>\n<p>&#8220;`java<\/p>\n<p>private ListView musicListView;<\/p>\n<p>private Button playPauseButton;<\/p>\n<p>private MediaPlayer mediaPlayer;<\/p>\n<p>private List musicFiles;<\/p>\n<p><p>&#8220;`<\/p>\n<p>5.3 \u5728 onCreate \u65b9\u6cd5\u5185\u521d\u59cb\u5316\u7ec4\u4ef6\uff0c\u5e76\u7ed9 Button \u6dfb\u52a0\u70b9\u51fb\u4e8b\u4ef6\uff1a<\/p>\n<p>&#8220;`java<\/p>\n<p>@Override<\/p>\n<p>protected void onCreate(Bundle savedInstanceState) {<\/p>\n<p><a href=\"https:\/\/www.anzhuoe.com\/\">\u5b89\u5353app<\/a><\/p>\n<p>    super.onCreate(savedInstanceState);<\/p>\n<p>    setContentView(R.layout.activity_main);<\/p>\n<p>    musicListView = findViewById(R.id.music_list);<\/p>\n<p>    playPauseButton = findViewById(R.id.play_pause);<\/p>\n<p>    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) !<\/p>\n<p><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/i.cdn.yimenapp.com\/2023-04\/07\/10\/25142971517.jpg\" \/><\/figure>\n<\/p>\n<p>= PackageManager.PERMISSION_GRANTED) {<\/p>\n<p>        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1);<\/p>\n<p>    } else {<\/p>\n<p>        initMusicPlayer();<\/p>\n<p>    }<\/p>\n<p>}<\/p>\n<p>private void initMusicPlayer() {<\/p>\n<p>    \/\/ \u8bfb\u53d6\u624b\u673a\u4e2d\u7684\u97f3\u4e50\u6587\u4ef6\uff0c\u5e76\u7ed1\u5b9a\u5230 ListView \u4e0a<\/p>\n<p>    musicFiles = getMusicFiles();<\/p>\n<p>    ArrayAdapter adapter = new ArrayAdapter(this, android.R.layout.simple_list<a href=\"https:\/\/www.anzhuoe.com\/\">\u5b89\u5353app\u5236\u4f5c<\/a>_item_1, musicFiles);<\/p>\n<p><p>    musicListView.setAdapter(adapter);<\/p>\n<p>    \/\/ \u7ed9\u64ad\u653e\u6309\u94ae\u6dfb\u52a0\u70b9\u51fb\u4e8b\u4ef6<\/p>\n<p>    playPauseButton.setOnClickListener(view -&gt; {<\/p>\n<p>        if (mediaPlayer == null) {<\/p>\n<p>            mediaPlayer = new MediaPlayer();<\/p>\n<p>            mediaPlayer.setOnCompletionListener(mp -&gt; mediaPlayer.release());<\/p>\n<p>        }<\/p>\n<p>        if (!mediaPlayer.isPlaying()) {<\/p>\n<p>            mediaPlayer.reset();<\/p>\n<p>            try {<\/p>\n<p>                mediaPlayer.setDataSource(musicFiles.get(musicListView.getSelectedItemPosition()));<\/p>\n<p>                mediaPlayer.prepare();<\/p>\n<p>                mediaPlayer.start();<\/p>\n<p>            } catch (IOException e) {<\/p>\n<p>                e.printStackTrace();<\/p>\n<p>            }<\/p>\n<p>        } else {<\/p>\n<p>            mediaPlayer.pause();<\/p>\n<p>        }<\/p>\n<p>    });<\/p>\n<p>}<\/p>\n<p>private List getMusicFiles() {<\/p>\n<p><p>    \/\/ \u83b7\u53d6\u8bbe\u5907\u4e2d\u7684\u97f3\u4e50\u6587\u4ef6\uff0c\u5e76\u8fd4\u56de\u6587\u4ef6\u8def\u5f84\u7684\u5217\u8868<\/p>\n<p>}<\/p>\n<p>@Override<\/p>\n<p>public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {<\/p>\n<p>    if (requestCode == 1) {<\/p>\n<p>        if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {<\/p>\n<p>            initMusicPlayer();<\/p>\n<p>        } else {<\/p>\n<p>            Toast.makeText(this, &#8220;\u672a\u83b7\u5f97\u8bfb\u53d6\u5b58\u50a8\u6743\u9650\uff0c\u65e0\u6cd5\u83b7\u53d6\u97f3\u4e50\u6587\u4ef6&#8221;, Toast.LENGTH_SHORT).show();<\/p>\n<p>        }<\/p>\n<p>    }<\/p>\n<p>}<\/p>\n<p>&#8220;`<\/p>\n<p>\u5728\u6b64\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528 IntelliJ IDEA \u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684 Android \u97f3\u4e50\u64ad\u653e\u5668\u5e94\u7528\u3002\u81f3\u6b64\uff0c\u4f60\u5e94\u8be5\u5df2\u7ecf\u521d\u6b65\u4e86\u89e3\u4e86\u5982\u4f55\u4e3a Android \u8bbe\u5907\u5f00\u53d1\u97f3\u4e50\u64ad\u653e\u5668\u5e94\u7528\u7684\u57fa\u672c\u539f\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u6559\u4f60\u5982\u4f55\u4f7f\u7528 IntelliJ IDEA \u5f00\u53d1\u4e00\u4e2a\u7b80\u5355\u7684 Android \u97f3\u4e50\u64ad\u653e\u5668\u5e94\u7528\u3002\u6211\u4eec\u5c06\u8bb2\u89e3\u5982\u4f55\u521b\u5efa\u4e00\u4e2a\u7528\u6237\u754c\u9762\u3001\u5b9e\u73b0\u97f3\u4e50\u64ad\u653e\u529f\u80fd\u4ee5\u53ca\u7ba1\u7406\u97f3\u4e50\u6587\u4ef6\u30021. \u73af\u5883\u51c6\u5907:\u9996\u5148\uff0c\u786e<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[16493,8964,2663,171,16492],"class_list":{"0":"post-9610","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-zuoapp","7":"tag-app","9":"tag-2663","10":"tag-171","11":"tag-16492"},"_links":{"self":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts\/9610","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\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/comments?post=9610"}],"version-history":[{"count":0,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts\/9610\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/media?parent=9610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/categories?post=9610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/tags?post=9610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}