在项目中创建,android.content.pm 包名。里面创建两个aidl文件。PackageStats.aidl 和 IPackageStatsObserver.aidl。
PackageStats.aidl
/* //device/java/android/android/view/WindowManager.aidl**** Copyright 2007, 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 android.content.pm;parcelable PackageStats;
IPackageStatsObserver.aidl
/***** Copyright 2007, 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 android.content.pm;import android.content.pm.PackageStats;/** * API for package data change related callbacks from the Package Manager. * Some usage scenarios include deletion of cache directory, generate * statistics related to code, data, cache usage(TODO) * {@hide} */oneway interface IPackageStatsObserver { void onGetStatsCompleted(in PackageStats pStats, boolean succeeded);}
1 import android.app.Activity; 2 import android.content.pm.IPackageStatsObserver; 3 import android.content.pm.PackageManager; 4 import android.content.pm.PackageStats; 5 import android.os.Bundle; 6 import android.os.Handler; 7 import android.os.Message; 8 import android.widget.TextView; 9 10 public class MainActivity extends Activity {11 12 private TextView tv;13 private static final String ATTR_PACKAGE_STATS = "PackageStats";14 15 @Override16 public void onCreate(Bundle savedInstanceState) {17 super.onCreate(savedInstanceState);18 19 tv = new TextView(this);20 21 setContentView(tv);22 23 getpkginfo("com.xj.notebook");24 }25 26 private Handler mHandler = new Handler() {27 public void handleMessage(Message msg) {28 switch (msg.what) {29 case 1:30 String infoString = "";31 PackageStats newPs = msg.getData().getParcelable(32 ATTR_PACKAGE_STATS);33 if (newPs != null) {34 infoString += "应用程序大小: " + formatFileSize(newPs.codeSize);35 infoString += "\n数据大小: " + formatFileSize(newPs.dataSize);36 infoString += "\n缓存大小: " + formatFileSize(newPs.cacheSize);37 }38 tv.setText(infoString);39 break;40 default:41 break;42 }43 }44 };45 46 public void getpkginfo(String pkg) {47 PackageManager pm = getPackageManager();48 try {49 Method getPackageSizeInfo = pm.getClass().getMethod(50 "getPackageSizeInfo", String.class,51 IPackageStatsObserver.class);52 getPackageSizeInfo.invoke(pm, pkg, new PkgSizeObserver());53 } catch (Exception e) {54 }55 }56 57 class PkgSizeObserver extends IPackageStatsObserver.Stub {58 public void onGetStatsCompleted(PackageStats pStats, boolean succeeded) {59 Message msg = mHandler.obtainMessage(1);60 Bundle data = new Bundle();61 data.putParcelable(ATTR_PACKAGE_STATS, pStats);62 msg.setData(data);63 mHandler.sendMessage(msg);65 }66 }67 68 /**69 * 获取文件大小70 */71 public static String formatFileSize(long length) {72 String result = null;73 int sub_string = 0;74 if (length >= 1073741824) {75 sub_string = String.valueOf((float) length / 1073741824).indexOf(76 ".");77 result = ((float) length / 1073741824 + "000").substring(0,78 sub_string + 3) + "GB";79 } else if (length >= 1048576) {80 sub_string = String.valueOf((float) length / 1048576).indexOf(".");81 result = ((float) length / 1048576 + "000").substring(0,82 sub_string + 3) + "MB";83 } else if (length >= 1024) {84 sub_string = String.valueOf((float) length / 1024).indexOf(".");85 result = ((float) length / 1024 + "000").substring(0,86 sub_string + 3) + "KB";87 } else if (length < 1024)88 result = Long.toString(length) + "B";89 return result;90 }91 }