diff options
Diffstat (limited to 'packages/FakeOemFeatures')
10 files changed, 645 insertions, 0 deletions
diff --git a/packages/FakeOemFeatures/Android.mk b/packages/FakeOemFeatures/Android.mk new file mode 100644 index 0000000..d84bccb --- /dev/null +++ b/packages/FakeOemFeatures/Android.mk @@ -0,0 +1,13 @@ +LOCAL_PATH:= $(call my-dir) +include $(CLEAR_VARS) + +LOCAL_MODULE_TAGS := debug + +LOCAL_SRC_FILES := $(call all-java-files-under, src) + +LOCAL_PACKAGE_NAME := FakeOemFeatures +LOCAL_CERTIFICATE := platform + +include $(BUILD_PACKAGE) + +include $(call all-makefiles-under,$(LOCAL_PATH)) diff --git a/packages/FakeOemFeatures/AndroidManifest.xml b/packages/FakeOemFeatures/AndroidManifest.xml new file mode 100644 index 0000000..57938ac --- /dev/null +++ b/packages/FakeOemFeatures/AndroidManifest.xml @@ -0,0 +1,25 @@ +<manifest xmlns:android="http://schemas.android.com/apk/res/android" + package="com.android.fakeoemfeatures" + coreApp="true" + > + + <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" /> + + <application + android:persistent="true" + android:name=".FakeApp" + android:allowClearUserData="false" + android:allowBackup="false" + android:hardwareAccelerated="true" + android:label="Fake OEM Features"> + + <service android:name=".FakeCoreService" android:process=":core" + android:label="Fake OEM Core Service" /> + <service android:name=".FakeCoreService2" android:process=":core" + android:label="Fake OEM Core Service Also" /> + <service android:name=".FakeCoreService3" android:process=":core" + android:label="Fake OEM Core Service Me Too" /> + <service android:name=".FakeBackgroundService" android:process=":background" + android:label="Fake OEM Bg Service" /> + </application> +</manifest> diff --git a/packages/FakeOemFeatures/MODULE_LICENSE_APACHE2 b/packages/FakeOemFeatures/MODULE_LICENSE_APACHE2 new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/packages/FakeOemFeatures/MODULE_LICENSE_APACHE2 diff --git a/packages/FakeOemFeatures/NOTICE b/packages/FakeOemFeatures/NOTICE new file mode 100644 index 0000000..c5b1efa --- /dev/null +++ b/packages/FakeOemFeatures/NOTICE @@ -0,0 +1,190 @@ + + Copyright (c) 2005-2008, 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. + + 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. + + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. 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In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + diff --git a/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeApp.java b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeApp.java new file mode 100644 index 0000000..436e579 --- /dev/null +++ b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeApp.java @@ -0,0 +1,157 @@ +/* + * Copyright (C) 2012 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.fakeoemfeatures; + +import android.app.ActivityManager; +import android.app.ActivityThread; +import android.app.AlertDialog; +import android.app.Application; +import android.app.Dialog; +import android.content.ComponentName; +import android.content.Context; +import android.content.Intent; +import android.content.ServiceConnection; +import android.os.Handler; +import android.os.IBinder; +import android.os.Message; +import android.util.Slog; +import android.view.Display; +import android.view.ViewGroup; +import android.view.WindowManager; + +public class FakeApp extends Application { + // Stuffing of 20MB + static final int STUFFING_SIZE_BYTES = 20*1024*1024; + static final int STUFFING_SIZE_INTS = STUFFING_SIZE_BYTES/4; + int[] mStuffing; + + // Assume 4k pages. + static final int PAGE_SIZE = 4*1024; + + static final long TICK_DELAY = 4*60*60*1000; // One hour + static final int MSG_TICK = 1; + final Handler mHandler = new Handler() { + @Override public void handleMessage(Message msg) { + switch (msg.what) { + case MSG_TICK: + // Our service is IMPORTANT. We know, we wrote it. + // We need to keep that thing running. Because WE KNOW. + // Damn you users, STOP MESSING WITH US. + startService(new Intent(FakeApp.this, FakeBackgroundService.class)); + sendEmptyMessageDelayed(MSG_TICK, TICK_DELAY); + break; + default: + super.handleMessage(msg); + break; + } + } + }; + + // Always run another process for more per-process overhead. + ServiceConnection mServiceConnection = new ServiceConnection() { + @Override public void onServiceConnected(ComponentName name, IBinder service) { + } + + @Override public void onServiceDisconnected(ComponentName name) { + } + }; + ServiceConnection mServiceConnection2 = new ServiceConnection() { + @Override public void onServiceConnected(ComponentName name, IBinder service) { + } + + @Override public void onServiceDisconnected(ComponentName name) { + } + }; + ServiceConnection mServiceConnection3 = new ServiceConnection() { + @Override public void onServiceConnected(ComponentName name, IBinder service) { + } + + @Override public void onServiceDisconnected(ComponentName name) { + } + }; + + @Override + public void onCreate() { + String processName = ActivityThread.currentPackageName(); + Slog.i("FakeOEMFeatures", "Creating app in process: " + processName); + if (!getApplicationInfo().packageName.equals(processName)) { + // If we are not in the main process of the app, then don't do + // our extra overhead stuff. + return; + } + + final WindowManager wm = (WindowManager)getSystemService(Context.WINDOW_SERVICE); + final Display display = wm.getDefaultDisplay(); + + // Check to make sure we are not running on a user build. If this + // is a user build, WARN! Do not want! + if ("user".equals(android.os.Build.TYPE)) { + AlertDialog.Builder builder = new AlertDialog.Builder(this); + builder.setTitle("Should not be on user build"); + builder.setMessage("The app Fake OEM Features should not be installed on a " + + "user build. Please remove this .apk before shipping this build to " + + " your customers!"); + builder.setCancelable(false); + builder.setPositiveButton("I understand", null); + Dialog dialog = builder.create(); + dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); + dialog.show(); + } + + // Make a fake window that is always around eating graphics resources. + FakeView view = new FakeView(this); + WindowManager.LayoutParams lp = new WindowManager.LayoutParams( + WindowManager.LayoutParams.TYPE_SYSTEM_ALERT, + WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE + | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE + | WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS); + if (ActivityManager.isHighEndGfx(display)) { + lp.flags |= WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED; + } + lp.width = ViewGroup.LayoutParams.MATCH_PARENT; + lp.height = ViewGroup.LayoutParams.MATCH_PARENT; + int maxSize = display.getMaximumSizeDimension(); + maxSize *= 2; + lp.x = maxSize; + lp.y = maxSize; + lp.setTitle(getPackageName()); + wm.addView(view, lp); + + // Bind to a fake service we want to keep running in another process. + bindService(new Intent(this, FakeCoreService.class), mServiceConnection, + Context.BIND_AUTO_CREATE); + bindService(new Intent(this, FakeCoreService2.class), mServiceConnection2, + Context.BIND_AUTO_CREATE); + bindService(new Intent(this, FakeCoreService3.class), mServiceConnection3, + Context.BIND_AUTO_CREATE); + + // Start to a fake service that should run in the background of + // another process. + mHandler.sendEmptyMessage(MSG_TICK); + + // Make a fake allocation to consume some RAM. + mStuffing = new int[STUFFING_SIZE_INTS]; + for (int i=0; i<STUFFING_SIZE_BYTES/PAGE_SIZE; i++) { + // Fill each page with a unique value. + final int VAL = i*2 + 100; + final int OFF = (i*PAGE_SIZE)/4; + for (int j=0; j<(PAGE_SIZE/4); j++) { + mStuffing[OFF+j] = VAL; + } + } + } +} diff --git a/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeBackgroundService.java b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeBackgroundService.java new file mode 100644 index 0000000..5d1a398 --- /dev/null +++ b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeBackgroundService.java @@ -0,0 +1,110 @@ +/* + * Copyright (C) 2012 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.fakeoemfeatures; + +import java.util.ArrayList; +import java.util.Random; + +import android.app.Dialog; +import android.app.Service; +import android.content.Context; +import android.content.Intent; +import android.os.Handler; +import android.os.IBinder; +import android.os.Message; +import android.view.Display; +import android.view.ViewGroup; +import android.view.WindowManager; + +public class FakeBackgroundService extends Service { + final ArrayList<int[]> mAllocs = new ArrayList<int[]>(); + + final Random mRandom = new Random(); + + static final long TICK_DELAY = 30*1000; // 30 seconds + static final int MSG_TICK = 1; + final Handler mHandler = new Handler() { + @Override public void handleMessage(Message msg) { + switch (msg.what) { + case MSG_TICK: + // We are awesome! To prove we are doing awesome stuff, + // we must use some memory! It wouldn't be awesome if + // we didn't use memory! + for (int i=0; i<5; i++) { + try { + int[] alloc = new int[FakeApp.PAGE_SIZE/4]; + mAllocs.add(alloc); + final int VAL = mRandom.nextInt(); + for (int j=0; j<FakeApp.PAGE_SIZE/4; j++) { + alloc[j] = VAL; + } + } catch (OutOfMemoryError e) { + } + } + sendEmptyMessageDelayed(MSG_TICK, TICK_DELAY); + break; + default: + super.handleMessage(msg); + break; + } + } + }; + + @Override public void onCreate() { + super.onCreate(); + mHandler.sendEmptyMessageDelayed(MSG_TICK, TICK_DELAY); + + final WindowManager wm = (WindowManager)getSystemService(Context.WINDOW_SERVICE); + final Display display = wm.getDefaultDisplay(); + + // Make a fake window that is always around eating graphics resources. + FakeView view = new FakeView(this); + Dialog dialog = new Dialog(this, android.R.style.Theme_Holo_Dialog); + dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); + dialog.getWindow().setFlags( + WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE + | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE + | WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS + | WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED, + WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE + | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE + | WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS + | WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED + | WindowManager.LayoutParams.FLAG_DIM_BEHIND); + dialog.getWindow().setDimAmount(0); + dialog.getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, + ViewGroup.LayoutParams.MATCH_PARENT); + WindowManager.LayoutParams lp = dialog.getWindow().getAttributes(); + int maxSize = display.getMaximumSizeDimension(); + maxSize *= 2; + lp.x = maxSize; + lp.y = maxSize; + lp.setTitle(getPackageName() + ":background"); + dialog.getWindow().setAttributes(lp); + dialog.getWindow().setContentView(view); + dialog.show(); + } + + @Override public void onDestroy() { + super.onDestroy(); + mHandler.removeMessages(MSG_TICK); + } + + @Override public IBinder onBind(Intent intent) { + return null; + } +} diff --git a/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeCoreService.java b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeCoreService.java new file mode 100644 index 0000000..86bc506 --- /dev/null +++ b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeCoreService.java @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2012 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.fakeoemfeatures; + +import android.app.Service; +import android.content.Intent; +import android.os.Binder; +import android.os.IBinder; + +public class FakeCoreService extends Service { + final Binder mBinder = new Binder(); + + @Override + public IBinder onBind(Intent intent) { + return mBinder; + } +} diff --git a/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeCoreService2.java b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeCoreService2.java new file mode 100644 index 0000000..f06988d --- /dev/null +++ b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeCoreService2.java @@ -0,0 +1,20 @@ +/* + * Copyright (C) 2012 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.fakeoemfeatures; + +public class FakeCoreService2 extends FakeCoreService { +} diff --git a/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeCoreService3.java b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeCoreService3.java new file mode 100644 index 0000000..a35adb2 --- /dev/null +++ b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeCoreService3.java @@ -0,0 +1,20 @@ +/* + * Copyright (C) 2012 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.fakeoemfeatures; + +public class FakeCoreService3 extends FakeCoreService { +} diff --git a/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeView.java b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeView.java new file mode 100644 index 0000000..276d55ee --- /dev/null +++ b/packages/FakeOemFeatures/src/com/android/fakeoemfeatures/FakeView.java @@ -0,0 +1,79 @@ +/* + * Copyright (C) 2012 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.fakeoemfeatures; + +import java.util.Random; + +import android.content.Context; +import android.graphics.Canvas; +import android.graphics.Paint; +import android.os.Handler; +import android.os.Message; +import android.view.View; + +/** + * Dummy view to emulate stuff an OEM may want to do. + */ +public class FakeView extends View { + static final long TICK_DELAY = 30*1000; // 30 seconds + static final int MSG_TICK = 1; + + final Handler mHandler = new Handler() { + @Override public void handleMessage(Message msg) { + switch (msg.what) { + case MSG_TICK: + invalidate(); + sendEmptyMessageDelayed(MSG_TICK, TICK_DELAY); + break; + default: + super.handleMessage(msg); + break; + } + } + }; + + final Paint mPaint = new Paint(); + final Random mRandom = new Random(); + + public FakeView(Context context) { + super(context); + } + + @Override + protected void onAttachedToWindow() { + super.onAttachedToWindow(); + mHandler.sendEmptyMessageDelayed(MSG_TICK, TICK_DELAY); + } + + @Override + protected void onDetachedFromWindow() { + super.onDetachedFromWindow(); + mHandler.removeMessages(MSG_TICK); + } + + @Override + protected void onDraw(Canvas canvas) { + super.onDraw(canvas); + canvas.drawColor(0xff000000); + mPaint.setTextSize(mRandom.nextInt(40) + 10); + mPaint.setColor(0xff000000 + mRandom.nextInt(0x1000000)); + int x = mRandom.nextInt(getWidth()) - (getWidth()/2); + int y = mRandom.nextInt(getHeight()); + canvas.drawText("abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ", + x, y, mPaint); + } +} |