获取安装应用程序apk的信息

获取已经安装的apk的信息

private PackageManager pm;

private List<ApplicationInfo> list;

pm=getActivity().getPackageManager();

list=pm.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES | PackageManager.GET_DISABLED_COMPONENTS);

获得应用程序的名字

list.get(position).loadLabel(pm).toString();

获得应用程序的icon

list.get(position).loadIcon(pm);

获得应用程序的包名

list.get(position).packageName;

/**

*

*

* @param packageName

* @param context

* @throws NameNotFoundException

*/

public static void openApp(String packageName, Context context)

throws NameNotFoundException {

pi = context.getPackageManager().getPackageInfo(packageName, 0);

Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);

resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);

resolveIntent.setPackage(pi.packageName);

pm = context.getPackageManager();

List<ResolveInfo> apps = pm.queryIntentActivities(resolveIntent, 0);

ResolveInfo ri = apps.iterator().next();

if (ri != null) {

packageName = ri.activityInfo.packageName;

String className = ri.activityInfo.name;

// Drawable db=ri.activityInfo.applicationInfo.loadIcon(pm);

// ivWifi.setImageDrawable(db);

Intent intent = new Intent(Intent.ACTION_MAIN);

intent.addCategory(Intent.CATEGORY_LAUNCHER);

ComponentName cn = new ComponentName(packageName, className);

intent.setComponent(cn);

context.startActivity(intent);

}

}

public static String getAppName(String packageName, Context context)

throws NameNotFoundException {

String strName = null;

pi = context.getPackageManager().getPackageInfo(packageName, 0);

Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);

resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);

resolveIntent.setPackage(pi.packageName);

pm = context.getPackageManager();

List<ResolveInfo> apps = pm.queryIntentActivities(resolveIntent, 0);

ResolveInfo ri = apps.iterator().next();

if (ri != null) {

strName = (String) ri.activityInfo.applicationInfo.loadLabel(pm);

}

return strName;

}

public static boolean checkApkExist(Context context, String packageName) {

if (packageName == null || "".equals(packageName))

return false;

try {

ApplicationInfo info = context.getPackageManager()

.getApplicationInfo(packageName,

PackageManager.GET_UNINSTALLED_PACKAGES);

return true;

} catch (NameNotFoundException e) {

return false;

}

}

public static Drawable getAppDrawable(String packageName, Context context)

throws NameNotFoundException {

Drawable drawable = null;

pi = context.getPackageManager().getPackageInfo(packageName, 0);

Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);

resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);

resolveIntent.setPackage(pi.packageName);

pm = context.getPackageManager();

List<ResolveInfo> apps = pm.queryIntentActivities(resolveIntent, 0);

ResolveInfo ri = apps.iterator().next();

if (ri != null) {

drawable = ri.activityInfo.applicationInfo.loadIcon(pm);

}

return drawable;

}

/**

*

*

* @param visible

* @param activity

*/

public static void updateWallpaperVisibility(boolean visible,

Activity activity) {

int wpflags = visible ? WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER

: 0;

int curflags = activity.getWindow().getAttributes().flags

& WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;

if (wpflags != curflags) {

activity.getWindow().setFlags(wpflags,

WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER);

}

}

找到launcher上面的应用程序

/**

* Query the package manager for MAIN/LAUNCHER activities in the supplied package.

*/

private List<ResolveInfo> findActivitiesForPackage() {

final PackageManager packageManager = getActivity().getPackageManager();

final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);

mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);

final List<ResolveInfo> apps = packageManager.queryIntentActivities(mainIntent, 0);

return apps != null ? apps : new ArrayList<ResolveInfo>();

}