android.content.pm.PackageManager#COMPONENT_ENABLED_STATE_DISABLED源码实例Demo

@Override
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
	if (key.equals("hide_launcher_icon")) {
		int newState = (sharedPreferences.getBoolean(key, false)) ? 
				PackageManager.COMPONENT_ENABLED_STATE_DISABLED : 
					PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
		
		PackageManager packageManager = 
				getActivity().getPackageManager();
		ComponentName componentName = 
				new ComponentName(getActivity(), "com.whd.wifikeyview.preferences.SettingsActivity-Alias");
		
		int oldState = packageManager.getComponentEnabledSetting(componentName);
		
		if (newState != oldState) {
			packageManager.setComponentEnabledSetting(componentName, newState, PackageManager.DONT_KILL_APP);
		}
	}
}
 

/**
 * Detect the current "Autostart if card is detected" state and set
 * the checkbox accordingly.
 */
private void detectAutostartIfCardDetectedState() {
    int enabledSetting = mPackageManager.getComponentEnabledSetting(
            mComponentName);
    switch (enabledSetting) {
        case PackageManager.COMPONENT_ENABLED_STATE_ENABLED:
        case PackageManager.COMPONENT_ENABLED_STATE_DEFAULT:
            mPrefAutostartIfCardDetected.setChecked(true);
            break;
        case PackageManager.COMPONENT_ENABLED_STATE_DISABLED:
            mPrefAutostartIfCardDetected.setChecked(false);
            break;
        default:
            break;
    }
}
 

private void displayBootReceiverState(PrintStream writer) {
    ComponentName componentName = new ComponentName(context, BootReceiver.class);
    PackageManager pm = context.getPackageManager();

    writer.print("Boot receiver state: ");
    int state = pm.getComponentEnabledSetting(componentName);
    switch (state) {
        case PackageManager.COMPONENT_ENABLED_STATE_DEFAULT:
            writer.println("default");
            break;
        case PackageManager.COMPONENT_ENABLED_STATE_ENABLED:
            writer.println("enabled");
            break;
        case PackageManager.COMPONENT_ENABLED_STATE_DISABLED:
            writer.println("disabled");
            break;
        case PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER:
            writer.println("disabled by user");
            break;
        default:
            writer.println(state);
            break;
    }
}
 

private void applyComponentEnablingState(boolean active) {
    int enableState = PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
    if(active && prefsWrapper.getPreferenceBooleanValue(SipConfigManager.INTEGRATE_TEL_PRIVILEGED) ) {
           // Check whether we should register for stock tel: intents
           // Useful for devices without gsm
           enableState = PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
    }
       PackageManager pm = getPackageManager();
       
       ComponentName cmp = new ComponentName(this, "com.csipsimple.ui.PrivilegedOutgoingCallBroadcaster");
       try {
           if (pm.getComponentEnabledSetting(cmp) != enableState) {
               pm.setComponentEnabledSetting(cmp, enableState, PackageManager.DONT_KILL_APP);
           }
       } catch (IllegalArgumentException e) {
           Log.d(THIS_FILE,
                   "Current manifest has no PrivilegedOutgoingCallBroadcaster -- you can ignore this if voluntary", e);
       }
}
 

/**
 * Resolve whether the DownloadManager is enable in current devices.
 *
 * @param context
 * @return true if DownloadManager is enable,false otherwise.
 */
private static boolean resolveEnable(Context context) {
    int state = context.getPackageManager()
            .getApplicationEnabledSetting(DOWNLOAD_MANAGER_PACKAGE_NAME);

    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN_MR2) {
        return !(state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED ||
                state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER
                || state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED);
    } else {
        return !(state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED ||
                state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER);
    }
}
 

public static void setEnabled (Context context, boolean enable) {
	if (context == null)
		return;
	PackageManager pm = context.getPackageManager();
	if (pm == null)
		return;
	ComponentName component = new ComponentName (context, WifiBroadcastReceiver.class);
	int status = pm.getComponentEnabledSetting(component);
	int statusNew = enable ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED : PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
	if (status != statusNew)
		pm.setComponentEnabledSetting(component,  statusNew, PackageManager.DONT_KILL_APP);
}
 

/**
 * Resolve whether the DownloadManager is enable in current devices.
 *
 * @param context Context of application
 * @return true if DownloadManager is enable, false otherwise.
 */
private static boolean resolveEnable(Context context) {
    int state = context.getPackageManager()
            .getApplicationEnabledSetting(DOWNLOAD_MANAGER_PACKAGE_NAME);

    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN_MR2) {
        return !(state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED ||
                state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER
                || state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED);
    } else {
        return !(state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED ||
                state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER);
    }
}
 

/**
 * 系统的下载组件是否可用
 *
 * @return boolean
 */
public static boolean checkDownloadState(Context context) {
    try {
        int state = context.getPackageManager().getApplicationEnabledSetting("com.android.providers.downloads");
        if (state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED
                || state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER
                || state == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) {
            return false;
        }
    } catch (Exception e) {
        e.printStackTrace();
        return false;
    }
    return true;
}
 

private static String enabledSettingToString(int state) {
    switch (state) {
        case PackageManager.COMPONENT_ENABLED_STATE_DEFAULT:
            return "default";
        case PackageManager.COMPONENT_ENABLED_STATE_ENABLED:
            return "enabled";
        case PackageManager.COMPONENT_ENABLED_STATE_DISABLED:
            return "disabled";
        case PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER:
            return "disabled-user";
        case PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED:
            return "disabled-until-used";
    }
    return "unknown";
}
 

private void setHandleHttpScheme(boolean handleHttpScheme) {
    if(handleHttpScheme == isHandlingHttpScheme()) return;

    int flag = (handleHttpScheme ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
            : PackageManager.COMPONENT_ENABLED_STATE_DISABLED);

    getPackageManager().setComponentEnabledSetting(
            getHttpSchemeHandlingComponent(), flag, PackageManager.DONT_KILL_APP);
}
 

/**
 * Checks if component for provided class enabled before.
 *
 * @param context Current Context.
 * @param packageManager Current PackageManager.
 * @param clazz Class for check.
 * @return True if component was enabled before.
 */
public static boolean wasComponentEnabled(Context context, PackageManager packageManager,
    Class clazz) {
  if (clazz == null || context == null || packageManager == null) {
    return false;
  }
  int componentStatus = packageManager.getComponentEnabledSetting(new ComponentName(context,
      clazz));
  if (PackageManager.COMPONENT_ENABLED_STATE_DEFAULT == componentStatus ||
      PackageManager.COMPONENT_ENABLED_STATE_DISABLED == componentStatus) {
    return false;
  }
  return true;
}
 

/**
 * Enable/Disable Broadcast Receiver
 *
 * @param context the context
 * @param brClass the br class
 * @param enabled the enabled
 */
public static void setStateOfReceiver(Context context, Class<?> brClass, boolean enabled) {
    ComponentName receiverName = new ComponentName(context, brClass.getName());
    PackageManager pm = context.getPackageManager();

    int newstate;
    if (enabled) {
        newstate = PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
    } else {
        newstate = PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
    }

    pm.setComponentEnabledSetting(receiverName, newstate, PackageManager.DONT_KILL_APP);
}
 

public static void setComponentState(Context context, Class<?> clazz, boolean enable) {
    ComponentName componentName = new ComponentName(context, clazz);
    PackageManager pm = context.getPackageManager();
    final int oldState = pm.getComponentEnabledSetting(componentName);
    final int newState = enable ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
            : PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
    if (newState != oldState) {
        final int flags = PackageManager.DONT_KILL_APP;
        pm.setComponentEnabledSetting(componentName, newState, flags);
    }
}
 

public void hideLauncherIcon(boolean isHide) {
    PackageManager packageManager = this.getPackageManager();
    int hide = isHide ? PackageManager.COMPONENT_ENABLED_STATE_DISABLED
            : PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
    packageManager.setComponentEnabledSetting(getAliasComponentName(),
            hide, PackageManager.DONT_KILL_APP);
}
 

private void changeIconView(boolean showIcon) {
    PackageManager packageManager = getActivity().getPackageManager();
    int state = showIcon ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
            : PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
    String alias_package = Common.PACKAGE_NAME + ".MainAlias";
    ComponentName alias = new ComponentName(getActivity(), alias_package);
    packageManager.setComponentEnabledSetting(alias, state,
            PackageManager.DONT_KILL_APP);
}
 

public static void hideOrShowLauncher(Context context, boolean isHide) {
    PackageManager p = context.getPackageManager();
    ComponentName componentName = new ComponentName(context, SettingActivity.class);
    if (isHide) {
        if (p.getComponentEnabledSetting(componentName) != PackageManager.COMPONENT_ENABLED_STATE_DISABLED) {
            p.setComponentEnabledSetting(componentName, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
            Log.d("PropUtil", "Hide the icon.");
        }
    } else {
        if (p.getComponentEnabledSetting(componentName) != PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
            p.setComponentEnabledSetting(componentName, PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);
            Log.d("PropUtil", "Show the icon.");
        }
    }
}
 

public boolean isHideLauncherIcon() {
    return mPackageManager.getComponentEnabledSetting(LAUNCH_COMPONENT_NAME)
            == PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
}
 

public void hideLauncherIcon(boolean isHide) {
    PackageManager packageManager = this.getPackageManager();
    int hide = isHide ? PackageManager.COMPONENT_ENABLED_STATE_DISABLED : PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
    packageManager.setComponentEnabledSetting(getAliasComponentName(), hide, PackageManager.DONT_KILL_APP);
}
 

public void hideLauncherIcon(boolean isHide) {
    PackageManager packageManager = this.getPackageManager();
    int hide = isHide ? PackageManager.COMPONENT_ENABLED_STATE_DISABLED : PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
    packageManager.setComponentEnabledSetting(getAliasComponentName(), hide, PackageManager.DONT_KILL_APP);
}
 

private void toggleLauncherIcon(boolean newValue) {
    PackageManager packageManager = this.getPackageManager();
    int state = newValue ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED : PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
    packageManager.setComponentEnabledSetting(getIconComponentName(), state, PackageManager.DONT_KILL_APP);
}