Dalvik

Dalvik 字节码

JVM 基于栈架构，程序run时频繁栈上读写数据，耗费CPU时间 $Java\;\xrightarrow{\mathrm{javac 编译}}.class$

\[JVM\xrightarrow{\mathrm{解码}.class}run\;Java\;program\]

Dalvik 虚拟机基于寄存器架构

\[Java\;\xrightarrow{android\;sdk/dx}.dex(Dalvik\;Executable)\]

dex 反编译得到.smali

dex 优化体积

Dalvik 指令

寄存器

字节码类型

方法

public void onResume() {
    super.onResume();
    n();
    m();
}

.method public onResume()V
    .locals 0

    .line 485
    invoke-super {p0}, Lcom/awesapp/isafe/core/ToolbarActivity;->onResume()V

    .line 486
    invoke-direct {p0}, Lcom/awesapp/isafe/core/MainActivity;->n()V

    .line 487
    invoke-direct {p0}, Lcom/awesapp/isafe/core/MainActivity;->m()V

    return-void
.end method

字段

public static g a;
private long A;
MusicPlayerBottomSheetFragment c;
boolean d;
private ImageView l;

private BottomSheetBehavior<LinearLayout> m;
@BindView(2131296417)
DrawerLayout mDrawerLayout;

# static fields
.field public static a:Lcom/awesapp/isafe/svs/a/g;

# instance fields
.field private A:J

.field c:Lcom/awesapp/isafe/musicplayer/MusicPlayerBottomSheetFragment;

.field d:Z

.field private l:Landroid/widget/ImageView;

.field private m:Landroid/support/design/widget/BottomSheetBehavior;
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "Landroid/support/design/widget/BottomSheetBehavior<",
            "Landroid/widget/LinearLayout;",
            ">;"
        }
    .end annotation
.end field

.field mDrawerLayout:Landroid/support/v4/widget/DrawerLayout;
    .annotation build Lbutterknife/BindView;
        value = 0x7f0900a1
    .end annotation
.end field