android ApplicationInfo类
16lz
2021-01-23
1）获取apk文件的图标
public static Drawable getApkFileIcon(String apkPath, Context context) {PackageManager pm = context.getPackageManager();PackageInfo info = pm.getPackageArchiveInfo(apkPath,PackageManager.GET_ACTIVITIES);if (info != null) {ApplicationInfo appInfo = info.applicationInfo;if (appInfo != null) {try {appInfo.publicSourceDir = apkPath;return pm.getApplicationIcon(appInfo);} catch (OutOfMemoryError e) {}}}return null;}
2）获取AndroidManifest.xml中<meta-data>标签中定义的值
PackageManager manager = this.getPackageManager(); try { // 设置PackageManager.GET_META_DATA标识位是必须的 PackageInfo info = manager.getPackageInfo(this.getPackageName(), PackageManager.GET_CONFIGURATIONS | PackageManager.GET_META_DATA); Object myChannel = info.applicationInfo.metaData.get("meta-data-key"); if ((myChannel != null) && (myChannel instanceof Integer)) { // do something } } catch (NameNotFoundException e) { e.printStackTrace(); }
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