[PORT][GUIDE][JB] Xperia Z Lockscreen

Requirements

• Baksmali/smali tool
• Text/XML editor
• [notepad++] notepad is alright but not advisable
• [xml editor for android]
• android.policy.jar
• XperiaZ_Lockscreen.zip

Procedure 

1. Decompile android.policy.jar [guide on how to decompile jar files]
2. Go to \com\android\internal\policy\impl and open LockPatternKeyguardView.smali
3. Find

.field mInfoCallback:Lcom/android/internal/policy/impl/KeyguardUpdateMonitor$InfoCallbackImpl;

4. Add this below

.field private mIsExternallyLoadedLockScreenEnabled:Z

5. Find

# virtual methods

6. Add the BLUE CODES and replace values for GREEN CODES 

# virtual methods
.method public cleanUp()V
    .registers 3

    .prologue
    const/4 v1, 0x0

    const/4 v0, 0x0

    iput-boolean v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mIsExternallyLoadedLockScreenEnabled:Z

    .line 808
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mLockScreen:Landroid/view/View;

    if-eqz v0, :cond_1d

    .line 809
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mLockScreen:Landroid/view/View;

    check-cast v0, Lcom/android/internal/policy/impl/KeyguardScreen;

    invoke-interface {v0}, Lcom/android/internal/policy/impl/KeyguardScreen;->onPause()V

    .line 810
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mLockScreen:Landroid/view/View;

    check-cast v0, Lcom/android/internal/policy/impl/KeyguardScreen;

    invoke-interface {v0}, Lcom/android/internal/policy/impl/KeyguardScreen;->cleanUp()V

    .line 811
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mLockScreen:Landroid/view/View;

    invoke-virtual {p0, v0}, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->removeView(Landroid/view/View;)V

    .line 812
    iput-object v1, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mLockScreen:Landroid/view/View;

    .line 814
    :cond_1d
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mUnlockScreen:Landroid/view/View;

    if-eqz v0, :cond_36

    .line 815
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mUnlockScreen:Landroid/view/View;

    check-cast v0, Lcom/android/internal/policy/impl/KeyguardScreen;

    invoke-interface {v0}, Lcom/android/internal/policy/impl/KeyguardScreen;->onPause()V

    .line 816
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mUnlockScreen:Landroid/view/View;

    check-cast v0, Lcom/android/internal/policy/impl/KeyguardScreen;

    invoke-interface {v0}, Lcom/android/internal/policy/impl/KeyguardScreen;->cleanUp()V

    .line 817
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mUnlockScreen:Landroid/view/View;

    invoke-virtual {p0, v0}, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->removeView(Landroid/view/View;)V

    .line 818
    iput-object v1, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mUnlockScreen:Landroid/view/View;

    .line 820
    :cond_36
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mUpdateMonitor:Lcom/android/internal/policy/impl/KeyguardUpdateMonitor;

    invoke-virtual {v0, p0}, Lcom/android/internal/policy/impl/KeyguardUpdateMonitor;->removeCallback(Ljava/lang/Object;)V

    .line 821
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mBiometricUnlock:Lcom/android/internal/policy/impl/BiometricSensorUnlock;

    if-eqz v0, :cond_44

    .line 822
    iget-object v0, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mBiometricUnlock:Lcom/android/internal/policy/impl/BiometricSensorUnlock;

    invoke-interface {v0}, Lcom/android/internal/policy/impl/BiometricSensorUnlock;->cleanUp()V

    .line 824
    :cond_44
    return-void
.end method

7. Find

.method createLockScreen()Landroid/view/View;

8. Add the BLUE CODES delete RED CODES and replace values for GREEN CODES

.method createLockScreen()Landroid/view/View;
    .registers 8

    .prologue
    iget-object v1, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mContext:Landroid/content/Context;

    iget-object v2, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mKeyguardScreenCallback:Lcom/android/internal/policy/impl/KeyguardScreenCallback;

    invoke-static {v1, v2}, Lcom/android/internal/policy/impl/ExternalLockScreen;->getLockScreen(Landroid/content/Context;Lcom/android/internal/policy/impl/KeyguardScreenCallback;)Landroid/view/View;

    move-result-object v0

    .local v0, lockView:Landroid/view/View;
    if-eqz v0, :cond_34

    const/4 v1, 0x1

    :goto_b
    iput-boolean v1, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mIsExternallyLoadedLockScreenEnabled:Z

    .line 1038
    iget-boolean v1, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mIsExternallyLoadedLockScreenEnabled:Z

    if-nez v1, :cond_30

    .line 918
    const-string v1, "ro.ty.lockscreen"

    const-string v2, "false"

    invoke-static {v1, v2}, Landroid/os/SystemProperties;->get(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;

    move-result-object v6

    .line 922
    .local v6, ty_lockscreen_support:Ljava/lang/String;
    const-string v1, "true"

    invoke-virtual {v1, v6}, Ljava/lang/String;->equals(Ljava/lang/Object;)Z

    move-result v1

    if-eqz v1, :cond_36

    .line 923
    new-instance v0, Lcom/android/internal/policy/impl/TYLockScreen;

    .end local v0           #lockView:Landroid/view/View;
    iget-object v1, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mContext:Landroid/content/Context;

    iget-object v2, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mConfiguration:Landroid/content/res/Configuration;

    iget-object v3, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mLockPatternUtils:Lcom/android/internal/widget/LockPatternUtils;

    iget-object v4, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mUpdateMonitor:Lcom/android/internal/policy/impl/KeyguardUpdateMonitor;

    iget-object v5, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mKeyguardScreenCallback:Lcom/android/internal/policy/impl/KeyguardScreenCallback;

    invoke-direct/range {v0 .. v5}, Lcom/android/internal/policy/impl/TYLockScreen;-><init>(Landroid/content/Context;Landroid/content/res/Configuration;Lcom/android/internal/widget/LockPatternUtils;Lcom/android/internal/policy/impl/KeyguardUpdateMonitor;Lcom/android/internal/policy/impl/KeyguardScreenCallback;)V

    .line 937
    .local v0, lockView:Landroid/view/View;
    :goto_1f
    .restart local v0       #lockView:Landroid/view/View;
    :cond_30
    :goto_30
    invoke-virtual {p0, v0}, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->initializeTransportControlView(Landroid/view/View;)V

    .line 938
    return-object v0

    :cond_34
    const/4 v1, 0x0

    goto :goto_b

    .line 930
    .end local v0           #lockView:Landroid/view/View;
    :cond_36
    new-instance v0, Lcom/android/internal/policy/impl/LockScreen;

    iget-object v1, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mContext:Landroid/content/Context;

    iget-object v2, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mConfiguration:Landroid/content/res/Configuration;

    iget-object v3, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mLockPatternUtils:Lcom/android/internal/widget/LockPatternUtils;

    iget-object v4, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mUpdateMonitor:Lcom/android/internal/policy/impl/KeyguardUpdateMonitor;

    iget-object v5, p0, Lcom/android/internal/policy/impl/LockPatternKeyguardView;->mKeyguardScreenCallback:Lcom/android/internal/policy/impl/KeyguardScreenCallback;

    invoke-direct/range {v0 .. v5}, Lcom/android/internal/policy/impl/LockScreen;-><init>(Landroid/content/Context;Landroid/content/res/Configuration;Lcom/android/internal/widget/LockPatternUtils;Lcom/android/internal/policy/impl/KeyguardUpdateMonitor;Lcom/android/internal/policy/impl/KeyguardScreenCallback;)V

    .restart local v0       #lockView:Landroid/view/View;
    goto :goto_30
.end method

9. Save & Compile. DO NOT PUSH IT YET!
10. Download & Flash XperiaZ_Lockscreen.zip
11. Push your new android.policy.jar to /system/framework

Alternatively you can flash this XperiaZ_AndroidPolicy.zip if you are using stock android.policy.jar