800
【Android】獲取手機中已安裝apk文件信息(PackageInfo、ResolveInfo)(應用圖片、應用名、包名等)
眾所周知，通過PackageManager可以獲取手機端已安裝的apk文件的信息，具體代碼如下
view plaincopy to clipboardprint?
PackageManager packageManager = this.getPackageManager();
List<PackageInfo> packageInfoList = packageManager.getInstalledPackages(0);
PackageManager packageManager = this.getPackageManager();
List<PackageInfo> packageInfoList = packageManager.getInstalledPackages(0);
通過以上方法，可以得到手機中安裝的所有應用程序，既包括了手動安裝的apk包的信息，也包括了係統預裝的應用軟件的信息，要區分這兩類軟件可使用以下方法:
a.從packageInfoList獲取的packageInfo，再通過packageInfo.applicationInfo獲取applicationInfo。
b.判斷(applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM)的值，該值大於0時，表示獲取的應用為係統預裝的應用，反之則為手動安裝的應用。
大家可以看下代碼，說明已經寫在注釋中。
獲取應用的代碼:
view plaincopy to clipboardprint?
/**
* 查詢手機內非係統應用
* @param context
* @return
*/
public static List<PackageInfo> getAllApps(Context context) {
List<PackageInfo> apps = new ArrayList<PackageInfo>();
PackageManager pManager = context.getPackageManager();
//獲取手機內所有應用
List<PackageInfo> paklist = pManager.getInstalledPackages(0);
for (int i = 0; i < paklist.size(); i++) {
PackageInfo pak = (PackageInfo) paklist.get(i);
//判斷是否為非係統預裝的應用程序
if ((pak.applicationInfo.flags & pak.applicationInfo.FLAG_SYSTEM) <= 0) {
// customs applications
apps.add(pak);
}
}
return apps;
}
/**
* 查詢手機內非係統應用
* @param context
* @return
*/
public static List<PackageInfo> getAllApps(Context context) {
List<PackageInfo> apps = new ArrayList<PackageInfo>();
PackageManager pManager = context.getPackageManager();
//獲取手機內所有應用
List<PackageInfo> paklist = pManager.getInstalledPackages(0);
for (int i = 0; i < paklist.size(); i++) {
PackageInfo pak = (PackageInfo) paklist.get(i);
//判斷是否為非係統預裝的應用程序
if ((pak.applicationInfo.flags & pak.applicationInfo.FLAG_SYSTEM) <= 0) {
// customs applications
apps.add(pak);
}
}
return apps;
}
獲取圖片、應用名、包名:
view plaincopy to clipboardprint?
PackageManager pManager = MessageSendActivity.this.getPackageManager();
List<PackageInfo> appList = Utils.getAllApps(MessageSendActivity.this);
for(int i=0;i<appList.size();i++) {
PackageInfo pinfo = appList.get(i);
ShareItemInfo shareItem = new ShareItemInfo();
//set Icon
shareItem.setIcon(pManager.getApplicationIcon(pinfo.applicationInfo));
//set Application Name
shareItem.setLabel(pManager.getApplicationLabel(pinfo.applicationInfo).toString());
//set Package Name
shareItem.setPackageName(pinfo.applicationInfo.packageName);
}
PackageManager pManager = MessageSendActivity.this.getPackageManager();
List<PackageInfo> appList = Utils.getAllApps(MessageSendActivity.this);
for(int i=0;i<appList.size();i++) {
PackageInfo pinfo = appList.get(i);
ShareItemInfo shareItem = new ShareItemInfo();
//set Icon
shareItem.setIcon(pManager.getApplicationIcon(pinfo.applicationInfo));
//set Application Name
shareItem.setLabel(pManager.getApplicationLabel(pinfo.applicationInfo).toString());
//set Package Name
shareItem.setPackageName(pinfo.applicationInfo.packageName);
}
其中 ShareItemInfo 類是我本地自定義的，各位可以忽略！
另為，有人可能在找 分享應用列表，在此一並說下吧。
獲取支持分享的應用的代碼：
view plaincopy to clipboardprint?
/**
* 查詢手機內所有支持分享的應用
* @param context
* @return
*/
public static List<ResolveInfo> getShareApps(Context context){
List<ResolveInfo> mApps = new ArrayList<ResolveInfo>();
Intent intent=new Intent(Intent.ACTION_SEND,null);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setType("text/plain");
PackageManager pManager = context.getPackageManager();
mApps = pManager.queryIntentActivities(intent,PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);
return mApps;
}
/**
* 查詢手機內所有支持分享的應用
* @param context
* @return
*/
public static List<ResolveInfo> getShareApps(Context context){
List<ResolveInfo> mApps = new ArrayList<ResolveInfo>();
Intent intent=new Intent(Intent.ACTION_SEND,null);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setType("text/plain");
PackageManager pManager = context.getPackageManager();
mApps = pManager.queryIntentActivities(intent,PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);
return mApps;
}
由於該方法，返回的並不是 PackageInfo 對象。而是 ResolveInfo。因此獲取圖片、應用名、包名的方法不一樣，如下：
view plaincopy to clipboardprint?
PackageManager pManager = MessageSendActivity.this.getPackageManager();
/*********************查詢手機內所有支持分享的應用*********************/
List<ResolveInfo> resolveList = Utils.getShareApps(MessageSendActivity.this);
for(int i=0;i<resolveList.size();i++) {
ResolveInfo resolve = resolveList.get(i);
ShareItemInfo shareItem = new ShareItemInfo();
//set Icon
shareItem.setIcon(resolve.loadIcon(pManager));
//set Application Name
shareItem.setLabel(resolve.loadLabel(pManager).toString());
//set Package Name
shareItem.setPackageName(resolve.activityInfo.packageName);
}
PackageManager pManager = MessageSendActivity.this.getPackageManager();
/*********************查詢手機內所有支持分享的應用*********************/
List<ResolveInfo> resolveList = Utils.getShareApps(MessageSendActivity.this);
for(int i=0;i<resolveList.size();i++) {
ResolveInfo resolve = resolveList.get(i);
ShareItemInfo shareItem = new ShareItemInfo();
//set Icon
shareItem.setIcon(resolve.loadIcon(pManager));
//set Application Name
shareItem.setLabel(resolve.loadLabel(pManager).toString());
//set Package Name
shareItem.setPackageName(resolve.activityInfo.packageName);
}
--------------------------------------------------------------------------------
總結：
通過 PackageInfo 獲取具體信息方法：
包名獲取方法：packageInfo.packageName
icon獲取獲取方法：packageManager.getApplicationIcon(applicationInfo)
應用名稱獲取方法：packageManager.getApplicationLabel(applicationInfo)
使用權限獲取方法：packageManager.getPackageInfo(packageName,PackageManager.GET_PERMISSIONS)
.requestedPermissions
通過 ResolveInfo 獲取具體信息方法：
包名獲取方法：resolve.activityInfo.packageName
icon獲取獲取方法：resolve.loadIcon(packageManager)
應用名稱獲取方法：resolve.loadLabel(packageManager).toString()
最後更新：2017-04-02 06:51:56