信息android开发中apk安装包常用工具

Android开发中apk安装包常用工具

开发项目中用到的有关获取apk信息的工具类在做版本升级的时候一般都需要用到部分方法做点笔记public class AppUtil {

*根据应用包名package name启动应用

*参数分别是上下文c ontext和应用包名 pkgNamepublic static boolean startApkByPkgName(Context context,String pkgName) {

P ac kageManager pac kageManager=c ontext.getP ac kageManager();

Intent intent=new Intent();intent=pac kageManager.getLaunc hIntentF orP ac kage(pkgName);if(intent==null) {

System.out.println(APP not found!r eturn fals e;c ontext.startAc tivity(intent);return true;

*根据apk文件路径得到app信息public static ApplicationInfo getApkInfoByPath(Context context,String absPath) {

ApplicationInfo appInfo=null;

Pac kageManager pm=c ontext.getPac kageManager();

PackageInfo pkgInfo =pm.getPac kageArchiveInfo(absPath,Pac kageManager.GET_ACTI VITIES);if(pkgInfo!=null) {appInfo=pkgInfo.applic ationInfo;

/*必须加这两句不然下面icon获取是default icon而不是应用包的icon*/

appInfo.s ourc eDir=absPath;appInfo.public Sourc eDir=absPath;return appInfo;

*根据apk应用包名得到应用信息public static PackageInfo getApkInfoByPkgName(Context context,String pkgName) {PackageInfo pkgInfo=null;

Pac kageManager pm=c ontext.getPac kageManager();try{

//0代表是获取版本信息pkgInfo=pm.getPac kageInfo(pkgName,0);

} c atch(NameNotFoundExc eption e) {

//TODO Auto-generated catch blocke.printStackTrac e();return pkgInfo;

*根据apk文件路径得到应用信息public static PackageInfo getPkgInfoByPath(Context c ontext,String absPath) {PackageInfo pkgInfo=null;

Pac kageManager pm=c ontext.getPac kageManager();pkgInfo=pm.getPackageArchiveInfo(absPath,

Pac kageManager.GET_ACTI VITIES);return pkgInfo;

*根据apk路径直接跳到安装界面

public static void installApkByPath(Context context,String absPath) {

Intent intent=new Intent(Intent.ACTION_VIEW);intent.s etDataAndType(Uri.pars e(file://+abs Path),applic ation/vnd.android.package-archiveintent.s etFlags(Intent.FLAG_ACTIVITY_NEW_TAS K);c ontext.startAc tivity(intent);

*根据apk包名卸载应用public static void uninstallApk(Context context,String packageName) {

String uriString=package:+pac kageName;

Uri uninstallUrl=Uri.parse(uriString);

Intent intent=new Intent(Intent.ACTION_DELET E,uninstallUrl);c ontext.startAc tivity(intent);public static List ResolveInfo queryAppInfo(Context c ontext,

String packageName) {

Pac kageManager pm=c ontext.getPac kageManager(); //获得Pac kageManager对象Intent mainIntent=new Intent(Intent.ACTION_MAIN,null);mainIntent.addCategory(Intent.CAT EGO RY_LAUNC HER);mainIntent.s etP ac kage(pac kageName);

//通过查询获得所有ResolveInfo对象.

List ResolveInfo resolveInfos=pm.queryIntentActivities(mainIntent,

P ac kageManager.GET_INTENT_FILTERS);return resolveInfos;

*根据名名获取版本信息public static int getInstalledAppVersionCode(Context context,String pkgName) {int versionCode=-1;

PackageInfo pkgInfo=AppUtil.getPkgInfoByName(c ontext,pkgName);if(pkgInfo!=null) {versionCode=pkgInfo.versionCode;return versionCode;