经常会用到 获取App信息，可以用这个工具类,可以获得 APP的应用程序名称、包名、图标，版本号基本信息
//跟App相关的辅助类
public class AppUtils {
/**
* 获取应用程序名称
*/
public static synchronized String getAppName(Context context) {
try {
PackageManager packageManager = context.getPackageManager();
PackageInfo packageInfo = packageManager.getPackageInfo(
context.getPackageName(), 0);
int labelRes = packageInfo.applicationInfo.labelRes;
return context.getResources().getString(labelRes);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* [获取应用程序版本名称信息]
* @param context
* @return 当前应用的版本名称
*/
public static synchronized String getVersionName(Context context) {
try {
PackageManager packageManager = context.getPackageManager();
PackageInfo packageInfo = packageManager.getPackageInfo(
context.getPackageName(), 0);
return packageInfo.versionName;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* [获取应用程序版本名称信息]
* @param context
* @return 当前应用的版本名称
*/
public static synchronized int getVersionCode(Context context) {
try {
PackageManager packageManager = context.getPackageManager();
PackageInfo packageInfo = packageManager.getPackageInfo(
context.getPackageName(), 0);
return packageInfo.versionCode;
} catch (Exception e) {
e.printStackTrace();
}
return 0;
}
/**
* [获取应用程序版本名称信息]
* @param context
* @return 当前应用的版本名称
*/
public static synchronized String getPackageName(Context context) {
try {
PackageManager packageManager = context.getPackageManager();
PackageInfo packageInfo = packageManager.getPackageInfo(
context.getPackageName(), 0);
return packageInfo.packageName;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 获取图标 bitmap
* @param context
*/
public static synchronized Bitmap getBitmap(Context context) {
PackageManager packageManager = null;
ApplicationInfo applicationInfo = null;
try {
packageManager = context.getApplicationContext()
.getPackageManager();
applicationInfo = packageManager.getApplicationInfo(
context.getPackageName(), 0);
} catch (PackageManager.NameNotFoundException e) {
applicationInfo = null;
}
Drawable d = packageManager.getApplicationIcon(applicationInfo); //xxx根据自己的情况获取drawable
BitmapDrawable bd = (BitmapDrawable) d;
Bitmap bm = bd.getBitmap();
return bm;
}
}
