反射获取Context，包名
public static Context getContext() {
if (appContext == null) {
try {
final Class<?> activityThreadClass = PackageUtils.class
.getClassLoader().loadClass(
"android.app.ActivityThread");
final Method currentActivityThread = activityThreadClass
.getDeclaredMethod("currentActivityThread");
final Object activityThread = currentActivityThread
.invoke(null);
final Method getApplication = activityThreadClass
.getDeclaredMethod("getApplication");
final Application application = (Application) getApplication
.invoke(activityThread);
appContext = application.getApplicationContext();
} catch (final Exception e) {
}
}
return appContext;
}
public static String getPackageName() {
if (packageName == null) {
if (appContext != null) {
packageName = appContext.getPackageName();
} else {
try {
final Class<?> activityThreadClass = PackageUtils.class.getClassLoader().loadClass("android.app.ActivityThread");
final Method currentPackageName = activityThreadClass.getDeclaredMethod("currentPackageName");
packageName = (String) currentPackageName.invoke(null);
} catch (final Exception e) {
}
}
}
return packageName;
}
当前是否是主进程
boolean isMainProcess() {
boolean result = false;
String mainProcessName = getApplicationContext().getPackageName();
if (mainProcessName.equals(getProcessName(this, android.os.Process.myPid()))) {
result = true;
}
return result;
}
public String getProcessName(Context ctx, int pid) {
String result = null;
ActivityManager am = (ActivityManager) ctx.getSystemService(Context.ACTIVITY_SERVICE);
// 启动的进程
List<ActivityManager.RunningAppProcessInfo> runningAppProcesses = am.getRunningAppProcesses();
if (!runningAppProcesses.isEmpty()) {
for (ActivityManager.RunningAppProcessInfo info : runningAppProcesses) {
if (info.pid == pid) {
result = info.processName;
break;
}
}
}
return result;
}
启动Activity名称
/**
* 获取启动Activity类名称
*
* @return
*/
public String getLauncherActivity() {
String mainProcessName = getApplicationContext().getPackageName();
// 需要获取已安装应用权限
Intent intent = getPackageManager().getLaunchIntentForPackage(mainProcessName);
return intent.getComponent().getClassName();
}
