[MOD][GUIDE][JB 4.1.2][MULTI-THREAD/NATIVE] Lockscreen Blur Effect/MULTITHREAD

BOOTMGR · Feb 4, 2014

Lockscreen Blur Effect

EDIT : Updated guide with Native function. Now it is ~60% faster

I wanna share this mod with you which i made for my HarshJelly ROM. Before starting guide let's see what it does. Actually idea came from GravityBox Module.

What it does : It'll simply blur the background activity which you left before locking device (something like iOS 7's notification bar). Here are some caps to make it more clear.

Yeah this mod is compatible with all Lockscreens (AOSP, Sammy's circle lockscreen, pattern etc). I tested this mod on my SGSA running stock TW 4.1.2. Since all TW roms are almost same, it should work on all TW 4.1.2 ROMs.

Before starting tutorial, let me clear one thing that i won't respond to posts without full log. If you found any difficulty, feel free to ask me but please keep in mind above sentence.

What is required?

android.policy.jar
Apktool
Notepad++

So, let's begin...

Decompile android.policy.jar
Navigate to : com\android\internal\policy\impl\sec
Download attached file, extract it and put WallpaperWidget$1.smali to above folder.
In the same folder, open WallpaperWidget.smali

before #instance field add following code

Code:

# static fields
.field static mutex_acquired:Z

Search for .field private mEnhancedWallpaper:Lcom/android/internal/policy/impl/sec/EnhancedWallpaperWidget; and add this below it
Code:
```
.field private mHandler:Landroid/os/Handler;
```

Search for iput-boolean v2, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mIsLiveWallpaper:Z and add this below

Code:

new-instance v0, Landroid/os/Handler;

    invoke-direct {v0}, Landroid/os/Handler;-><init>()V

    iput-object v0, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mHandler:Landroid/os/Handler;

after # direct methods add following code

Code:

.method static constructor <clinit>()V
    .locals 1

    const-string v0, "harsh"

    invoke-static {v0}, Ljava/lang/System;->loadLibrary(Ljava/lang/String;)V

    const/4 v0, 0x1

    sput-boolean v0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mutex_acquired:Z

    return-void
.end method

Now search for .method public constructor <init>(Landroid/content/Context;Landroid/content/res/ConfigurationV and replace whole method with following :

Code:

.method public constructor <init>(Landroid/content/Context;Landroid/content/res/Configuration;)V
    .locals 5

    const/4 v4, 0x0

    const/4 v3, -0x1

    const/4 v2, 0x1

    invoke-direct {p0, p1}, Landroid/widget/FrameLayout;-><init>(Landroid/content/Context;)V

    const-string v0, "WallpaperWidget"

    iput-object v0, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->TAG:Ljava/lang/String;

    iput-boolean v2, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mIsLiveWallpaper:Z

    new-instance v0, Landroid/os/Handler;

    invoke-direct {v0}, Landroid/os/Handler;-><init>()V

    iput-object v0, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mHandler:Landroid/os/Handler;

    const/4 v0, 0x0

    iput-object v0, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mLockScreenWallpaperImage:Landroid/widget/ImageView;

    const-string v0, "/data/data/com.sec.android.gallery3d/lockscreen_wallpaper.jpg"

    iput-object v0, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->PORTRAIT_WALLPAPER_IMAGE_PATH:Ljava/lang/String;

    iput-object p1, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mContext:Landroid/content/Context;

    invoke-virtual {p1}, Landroid/content/Context;->getContentResolver()Landroid/content/ContentResolver;

    move-result-object v0

    const-string v1, "lockscreen_wallpaper"

    invoke-static {v0, v1, v2}, Landroid/provider/Settings$System;->getInt(Landroid/content/ContentResolver;Ljava/lang/String;I)I

    move-result v0

    if-ne v0, v2, :cond_0

    iput-boolean v4, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mIsLiveWallpaper:Z

    :cond_0
    iget-boolean v0, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mIsLiveWallpaper:Z

    if-eqz v0, :cond_1

    :goto_0
    return-void

    :cond_1
    new-instance v0, Landroid/widget/ImageView;

    invoke-direct {v0, p1}, Landroid/widget/ImageView;-><init>(Landroid/content/Context;)V

    iput-object v0, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mLockScreenWallpaperImage:Landroid/widget/ImageView;

    iget-object v0, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mLockScreenWallpaperImage:Landroid/widget/ImageView;

    sget-object v1, Landroid/widget/ImageView$ScaleType;->CENTER_CROP:Landroid/widget/ImageView$ScaleType;

    invoke-virtual {v0, v1}, Landroid/widget/ImageView;->setScaleType(Landroid/widget/ImageView$ScaleType;)V

    iget-object v0, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mLockScreenWallpaperImage:Landroid/widget/ImageView;

    invoke-virtual {p0, v0, v3, v3}, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->addView(Landroid/view/View;II)V
	
    invoke-direct {p0}, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->BlurImage()V

    goto :goto_0
.end method

.method private BlurImage()V
    .locals 2

    new-instance v0, Ljava/lang/Thread;

    new-instance v1, Lcom/android/internal/policy/impl/sec/WallpaperWidget$1;

    invoke-direct {v1, p0}, Lcom/android/internal/policy/impl/sec/WallpaperWidget$1;-><init>(Lcom/android/internal/policy/impl/sec/WallpaperWidget;)V

    invoke-direct {v0, v1}, Ljava/lang/Thread;-><init>(Ljava/lang/Runnable;)V

    invoke-virtual {v0}, Ljava/lang/Thread;->start()V

    return-void
.end method

.method static synthetic access$0(Lcom/android/internal/policy/impl/sec/WallpaperWidget;Landroid/graphics/Bitmap;Landroid/graphics/Bitmap;I)V
    .locals 0

    invoke-direct {p0, p1, p2, p3}, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->blurImage(Landroid/graphics/Bitmap;Landroid/graphics/Bitmap;I)V

    return-void
.end method

.method static synthetic access$1(Lcom/android/internal/policy/impl/sec/WallpaperWidget;)Landroid/os/Handler;
    .locals 1

    iget-object v0, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mHandler:Landroid/os/Handler;

    return-object v0
.end method

.method private native blurImage(Landroid/graphics/Bitmap;Landroid/graphics/Bitmap;I)V
.end method

Now search for # virtual methods and add this code after it

Code:

.method public updateWallpaper()V
    .locals 3

    const-string v1, "/data/data/com.sec.android.gallery3d/lockscreen_wallpaper.jpg"

    iput-object v1, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mWallpaperPath:Ljava/lang/String;

    new-instance v0, Landroid/graphics/drawable/BitmapDrawable;

    invoke-virtual {p0}, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->getResources()Landroid/content/res/Resources;

    move-result-object v1

    iget-object v2, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mWallpaperPath:Ljava/lang/String;

    invoke-direct {v0, v1, v2}, Landroid/graphics/drawable/BitmapDrawable;-><init>(Landroid/content/res/Resources;Ljava/lang/String;)V

    iget-object v1, p0, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->mLockScreenWallpaperImage:Landroid/widget/ImageView;

    invoke-virtual {v1, v0}, Landroid/widget/ImageView;->setImageDrawable(Landroid/graphics/drawable/Drawable;)V

    return-void
.end method

Follow xperiacle's guide for TRANSPARENT STATUSBAR on lockscreen http://xdaforums.com/showthread.php?t=2384892 (this is required, don't worry, it won't make it transparent)
From the extracted files, push libharsh.so to /system/lib/libharsh.so and chmod it to 644 (rw-r--r--)
Make sure that /data/data/com.sec.android.gallery3d/lockscreen_wallpaper.png & /data/data/com.sec.android.gallery3d/lockscreen_wallpaper.jpg file exists before you reboot your device. If it doesn't then put any valid png file there with name lockscreen_wallpaper.png/lockscreen_wallpaper.jpg and chmod it to 777
We're done :highfive: compile it and push it to device :good:
To add toggle for it, read here

What we're doing here?
Basically we are taking screenshot when device is getting locked and then we apply blur effect and sets it as wallpaper.
I know there are many way's to do it but i've preferred hacking WallpaperWidget's constructor. You can go for another way if you want.
Another thing to tell is that it depend on you device that how much time it'll require to do this process. On my device it nearly take 2 seconds (it depends on background). Multithreading can also be used. Read second post for more info and other tweaks., By default we're using Multi threading

BOOTMGR · Feb 4, 2014

Tips, Tricks & FAQs

Bugs & Remedies :

If multithreading is not enabled & device is woke up suddenly after locking then sometimes device stays unlocked for a moment --> Enabled multithreading or don't wake up device soon after locking it
[*] When mutithreading is enabled & device is suddenly woke up (soon after locking), it shows older image --> Disable mutithreading or don't wake up device soon after locking it

All bug are solved..

As this tutorial is written for 4.1.2 (API 16), we don't have native image processing support (which came in API 17).This is the reason why it takes long time to blur image. As told above, i' trying to implement native method for blurring image anybody interested in it can help me.

Code:
Tweaks :

Blur Radius : (Value in Hex)

Code:

.local v4, out:Landroid/graphics/Bitmap; const/16 v5, [COLOR="Red"]0x19[/COLOR]

(lower radius --> better performance)

JPEG Quility: (Value in Hex)

Code:

.local v1, bytes:Ljava/io/ByteArrayOutputStream; sget-object v5, Landroid/graphics/Bitmap$CompressFormat;->JPEG:Landroid/graphics/Bitmap$CompressFormat; const/16 v6, [COLOR="red"]0x64[/COLOR]

Lower Quality --> better performance, weird colors

Changelog:

26th May 2014 --> Solved bug with delay while locking, Uses Multi Threading by default

xth February 2014 --> Native function Implementation (x > 6 )

6th February 2014 --> Initial Release

arneldna · Feb 4, 2014

GReat Work!!!!!!

Amazing Job, Harsh as usual you surprise us every time....Man keep it UP!!

Thankz a Ton..!:good::good::good::good::good::good::good:

mjz2cool · Feb 4, 2014

when i use this, can i still use normal wallpapers if i want? or does that need a toggle or something like that?

Sami Kabir · Feb 5, 2014

mjz2cool said:
when i use this, can i still use normal wallpapers if i want? or does that need a toggle or something like that?

+1

@BOOTMGR, Please make a short tutorial (if possible) for setting up a Toggle to switch it on or off from the Settings app :good:

BOOTMGR · Feb 6, 2014

Updated thread with new implementation. Now we are using Native function to blur image which is ~60% faster than previous implementation. Follow tutorial again if you've already done so.

mjz2cool said:
when i use this, can i still use normal wallpapers if i want? or does that need a toggle or something like that?

Sami Kabir said:
+1

@BOOTMGR, Please make a short tutorial (if possible) for setting up a Toggle to switch it on or off from the Settings app :good:

Adding toggle in secsetting is easy but only reason behind not providing it is that some people would have enabled AOSP lockscreen in that case method will be slightly different. But you can follow this tutorial to add toggle for it using build.prop

How to add Toggle :

Code:
Follow main tutorial

Inside WallpaperWidget.smali, search for invoke-direct {p0}, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->BlurImage()V and add following code above it

Code:

const-string v0, "ro.harsh.blurlockscreen" invoke-static {v0, v2}, Landroid/os/SystemProperties;->getBoolean(Ljava/lang/String;Z)Z move-result v0 if-eqz v0, :cond_2

Search below for .end method (2 - 3 lines down) and add this below it

Code:

:cond_2 invoke-direct {p0}, Lcom/android/internal/policy/impl/sec/WallpaperWidget;->setLockScreenWallpaper()V goto :goto_0

That's all. Compile it.

Now you can toggle its state by adding ro.harsh.blurlockscreen=true or ro.harsh.blurlockscreen=false
You can also type in terminal setprop ro.harsh.blurlockscreen true/false to toggle state on the fly.

#Henkate · Feb 6, 2014

off topic: You keep doing stock jb more and more better

rajeev994 · Feb 7, 2014

I'm Sorry But i'm Naive I cannot Follow this tutorial Can you Make a Flashable zip Plz Plz Plz Plz Plzzzzzzzzzzzzzzzzzzzzz

shut_down · Feb 7, 2014

rajeev994 said:
I'm Sorry But i'm Naive I cannot Follow this tutorial Can you Make a Flashable zip Plz Plz Plz Plz Plzzzzzzzzzzzzzzzzzzzzz

He did on his ROM.

rajeev994 · Feb 7, 2014

shut_down said:
He did on his ROM.

No he did not I'm using his harshjelly
Even if he did can you tell me how to do that

Sent from my GT-I9070 using Tapatalk 4

shut_down · Feb 7, 2014

rajeev994 said:
No he did not I'm using his harshjelly
Even if he did can you tell me how to do that

Sent from my GT-I9070 using Tapatalk 4

It is written here step by step what to do.

If it is not, then I am sure he will add it to next release.

Geddd · Feb 8, 2014

Upgrading Android OS...
Opening apllications...

I'm getting this again and again after I reboot my device, I think the files aren't compatible with my 4.1.2 TW deodexed..

but this mod looks so cool, I want this

Sh0m1 · Feb 8, 2014

http://www.xda-developers.com/android/blur-the-lock-screen-on-your-samsung-galaxy-s-advance/
You got to the portal

JovieBrett · Feb 8, 2014

Seems interesting, great work!

btw is this tut possible for CM11 roms? I would like to try compiling this on our CM11 builds

francop311 · Feb 9, 2014

Is there anyway to make this into an xposed module?

BOOTMGR · Feb 9, 2014

Geddd said:
Upgrading Android OS...
Opening apllications...

I'm getting this again and again after I reboot my device, I think the files aren't compatible with my 4.1.2 TW deodexed..
but this mod looks so cool, I want this

It should be. Check again that & make sure you did everything properly. Did you pushed libharsh.so to /system/lib and changed its permission?

JovieBrett said:
Seems interesting, great work! btw is this tut possible for CM11 roms? I would like to try compiling this on our CM11 builds

You can do it easily by Xposed. Gravitybox doesnot suppot this on 4.1.2 because of unavailable API

francop311 said:
Is there anyway to make this into an xposed module?

Making this available through xposed is very easy. I make module later when i'll be free.

EnerJon · Feb 9, 2014

Awesoem!!! Looks Cool!

Geddd · Feb 9, 2014

BOOTMGR said:
It should be. Check again that & make sure you did everything properly. Did you pushed libharsh.so to /system/lib and changed its permission?

Yes bro, I did follow the steps carefully and push the lib file (rw-r-r). I tried to do it again now it boot up but my homescreen is just blinking with black screen. If you have enough time can you please check my work?

here's my output classout folder and my untouched android policy..
if you're just not busy bro, I can wait. Thank you.

BOOTMGR · Feb 10, 2014

Geddd said:
BOOTMGR said:

It should be. Check again that & make sure you did everything properly. Did you pushed libharsh.so to /system/lib and changed its permission?

Yes bro, I did follow the steps carefully and push the lib file (rw-r-r). I tried to do it again now it boot up but my homescreen is just blinking with black screen. If you have enough time can you please check my work?

here's my output classout folder and my untouched android policy..
if you're just not busy bro, I can wait. Thank you.

Click to expand...

Click to collapse

Compile attached sources (don't forget to add META-INF folder). There were some additional things in your constructor. Please if it doesn't work then provide me full log.

Geddd · Feb 10, 2014

BOOTMGR said:
Geddd said:

Compile attached sources (don't forget to add META-INF folder). There were some additional things in your constructor. Please if it doesn't work then provide me full log.

Click to expand...

Click to collapse

Still no luck sorry but I don't know how to make a log/logcat..
Anyway, but thanks again sir.

[MOD][GUIDE][JB 4.1.2][MULTI-THREAD/NATIVE] Lockscreen Blur Effect/MULTITHREAD

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