/* * Copyright (C) 2008 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.launcher; import android.app.Application; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; public class LauncherApplication extends Application { private static Object runtime = null; private final static float TARGET_HEAP_UTILIZATION = 0.75f; private final static int CWJ_HEAP_SIZE = 6* 1024* 1024 ; @Override public void onCreate() { //VMRuntime.getRuntime().setTargetHeapUtilization(TARGET_HEAP_UTILIZATION); //VMRuntime.getRuntime().setMinimumHeapSize(4 * 1024 * 1024); try { Class<?> cl = Class.forName("dalvik.system.VMRuntime"); Method getRt = cl.getMethod("getRuntime", new Class[0]); runtime = getRt.invoke(null, new Object[0]); final Class<?>[] longArgsClass = new Class[1]; longArgsClass[0] = Long.TYPE; Method setMiniHeaP = runtime.getClass().getMethod("setMinimumHeapSize", longArgsClass); setMiniHeaP.invoke(runtime, CWJ_HEAP_SIZE); final Class<?>[] floatArgsClass = new Class[1]; floatArgsClass[0] = Float.TYPE; Method setTargetHeapUtilization = runtime.getClass().getMethod("setTargetHeapUtilization", floatArgsClass); setTargetHeapUtilization.invoke(runtime, TARGET_HEAP_UTILIZATION); } catch (ClassNotFoundException e) { } catch (SecurityException e) { } catch (NoSuchMethodException e) { e.printStackTrace(); } catch (IllegalArgumentException e) { } catch (IllegalAccessException e) { } catch (InvocationTargetException e) { } super.onCreate(); } }