packageManager 获取package信息

来源：互联网发布：游淼双截棍知乎编辑：程序博客网时间：2024/05/22 04:46

简单整理一下packageManager的几个获取包信息的方法。下面的都是自己试验出来的

/** * 获取本机中所有在AndroidManefest.xml中定义过的Activity的所有信息，包括permission,theme,name等等 * 只要是在AndroidManefest.xml中的<Activity>标签中能填写的属性，这里就可以获取。由ActivityInfo的源码得知 * toString函数只是打印了一个activity的编号和他的名字。 *  */private void showActivityInfo() {for (PackageInfo pack : getPackageManager().getInstalledPackages(PackageManager.GET_ACTIVITIES)) {ActivityInfo[] activityInfos = pack.activities;// Log.d(TAG, "pack.packageName =qqqq= " + pack.packageName// + "  pack.versionName =qqqq= " + pack.versionName// + "  versionCode ==qqq= " + pack.versionCode);if (activityInfos != null) {for (ActivityInfo activityInfo : activityInfos) {Log.d(TAG, "activityInfos: " + activityInfo.toString()+ "    permission: " + activityInfo.permission);}}}}/** * 获取所有应用在AndroidManefest.xml中定义的Provider的信息，包括authority等。 与showActivity类似 */private void showProviderInfo() {for (PackageInfo pack : getPackageManager().getInstalledPackages(PackageManager.GET_PROVIDERS)) {ProviderInfo[] providerInfos = pack.providers;// Log.d(TAG, "pack.packageName == " + pack.packageName// + "  pack.versionName == " + pack.versionName// + "  versionCode === " + pack.versionCode);if (providerInfos != null) {for (ProviderInfo providerInfo : providerInfos) {Log.d(TAG, "providerInfo: " + providerInfo.toString()+ "    authority: " + providerInfo.authority);}}}}

/**

*  获取手机中所有包，并打印出这些包都用到了哪些permission

*/private void showPermission() {for (PackageInfo pack : getPackageManager().getInstalledPackages(PackageManager.GET_PERMISSIONS)) {if (pack.requestedPermissions != null) {Log.d(TAG, "*******************************************");Log.d(TAG, "pack.packageName: " + pack.packageName);for (String per : pack.requestedPermissions) {Log.d(TAG, "permission ----- > " + per);}}}}

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