smali example

 1 package com.example.wang;
 2 
 3 import android.app.Activity;
 4 import android.app.AlertDialog;
 5 import android.content.Context;
 6 import android.os.Bundle;
 7 import android.util.Log;
 8 import android.view.View;
 9 import android.view.View.OnClickListener;
10 import android.widget.Button;
11 import android.widget.Toast;
12 
13 public class MainActivity extends Activity implements OnClickListener {
14     public static final String TAG = "MY_TAG";
15 
16     @Override
17     protected void onCreate(Bundle savedInstanceState) {
18         super.onCreate(savedInstanceState);
19         setContentView(R.layout.activity_main);
20 
21         Button startBtn = (Button) findViewById(R.id.start);
22         startBtn.setOnClickListener(this);
23     }
24 
25     public void toToast(String msg) {
26         Toast.makeText(this, msg, Toast.LENGTH_LONG).show();
27     }
28 
29     private static int add(int a, int b) {
30         int sum;
31         sum = a + b;
32         return sum;
33     }
34 
35     public class Student {
36         private String name;
37         private int age;
38 
39         public Student() {
40 
41         }
42 
43         public Student(String name, int age) {
44             this.name = name;
45             this.age = age;
46         }
47 
48         public void printf() {
49             Log.d(TAG, "name:" + name + ", age:" + age);
50         }
51     }
52 
53     @Override
54     public void onClick(View v) {
55         switch (v.getId()) {
56             case R.id.start:
57                 String msg = "begin to start";
58                 toToast(msg);
59                 break;
60             default:
61                 break;
62         }
63     }
64 
65     public class MyPhone {
66         public MyPhone() {
67         }
68 
69         private void showDialog(Context context) {
70             String title = "my title";
71             String message = "show my dialog";
72             AlertDialog.Builder dialog = new AlertDialog.Builder(context)
73                     .setTitle(title).setMessage(message);
74 
75             dialog.show();
76         }
77     }
78 }

 //MainActivity.smali
.class public Lcom/example/wang/MainActivity;
.super Landroid/app/Activity;
.source "MainActivity.java"

# interfaces
.implements Landroid/view/View$OnClickListener;


# annotations
.annotation system Ldalvik/annotation/MemberClasses;
    value = {
        Lcom/example/wang/MainActivity$MyPhone;,
        Lcom/example/wang/MainActivity$Student;
    }
.end annotation


# static fields
.field public static final TAG:Ljava/lang/String; = "MY_TAG"


# direct methods
.method public constructor <init>()V
    .locals 0

    .prologue
    .line 13
    invoke-direct {p0}, Landroid/app/Activity;-><init>()V

    return-void
.end method

.method private static add(II)I
    .locals 1
    .param p0, "a"    # I
    .param p1, "b"    # I

    .prologue
    .line 31
    add-int v0, p0, p1

    .line 32
    .local v0, "sum":I
    return v0
.end method


# virtual methods
.method public onClick(Landroid/view/View;)V
    .locals 2
    .param p1, "v"    # Landroid/view/View;

    .prologue
    .line 55
    invoke-virtual {p1}, Landroid/view/View;->getId()I

    move-result v1

    packed-switch v1, :pswitch_data_0

    .line 63
    :goto_0
    return-void

    .line 57
    :pswitch_0
    const-string v0, "begin to start"

    .line 58
    .local v0, "msg":Ljava/lang/String;
    invoke-virtual {p0, v0}, Lcom/example/wang/MainActivity;->toToast(Ljava/lang/String;)V

    goto :goto_0

    .line 55
    :pswitch_data_0
    .packed-switch 0x7f05003c
        :pswitch_0
    .end packed-switch
.end method

.method protected onCreate(Landroid/os/Bundle;)V
    .locals 2
    .param p1, "savedInstanceState"    # Landroid/os/Bundle;

    .prologue
    .line 18
    invoke-super {p0, p1}, Landroid/app/Activity;->onCreate(Landroid/os/Bundle;)V

    .line 19
    const v1, 0x7f030018

    invoke-virtual {p0, v1}, Lcom/example/wang/MainActivity;->setContentView(I)V

    .line 21
    const v1, 0x7f05003c

    invoke-virtual {p0, v1}, Lcom/example/wang/MainActivity;->findViewById(I)Landroid/view/View;

    move-result-object v0

    check-cast v0, Landroid/widget/Button;

    .line 22
    .local v0, "startBtn":Landroid/widget/Button;
    invoke-virtual {v0, p0}, Landroid/widget/Button;->setOnClickListener(Landroid/view/View$OnClickListener;)V

    .line 23
    return-void
.end method

.method public toToast(Ljava/lang/String;)V
    .locals 1
    .param p1, "msg"    # Ljava/lang/String;

    .prologue
    .line 26
    const/4 v0, 0x1

    invoke-static {p0, p1, v0}, Landroid/widget/Toast;->makeText(Landroid/content/Context;Ljava/lang/CharSequence;I)Landroid/widget/Toast;

    move-result-object v0

    invoke-virtual {v0}, Landroid/widget/Toast;->show()V

    .line 27
    return-void
.end method

注解是Java的语言特性，android系统中有两个注解包：dalvik.annotation, android.annotation
MemberClasses即子类成员集合，就是内部类列表。它是编译时自动加上的。

//MainActivity$MyPhone.smali
.class public Lcom/example/wang/MainActivity$MyPhone;
.super Ljava/lang/Object;
.source "MainActivity.java"


# annotations
.annotation system Ldalvik/annotation/EnclosingClass;
    value = Lcom/example/wang/MainActivity;
.end annotation

.annotation system Ldalvik/annotation/InnerClass;
    accessFlags = 0x1
    name = "MyPhone"
.end annotation


# instance fields
.field final synthetic this$0:Lcom/example/wang/MainActivity;


# direct methods
.method public constructor <init>(Lcom/example/wang/MainActivity;)V
    .locals 0

    .prologue
    .line 66
    iput-object p1, p0, Lcom/example/wang/MainActivity$MyPhone;->this$0:Lcom/example/wang/MainActivity;

    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 67
    return-void
.end method

.method private showDialog(Landroid/content/Context;)V
    .locals 4
    .param p1, "context"    # Landroid/content/Context;

    .prologue
    .line 70
    const-string v2, "my title"

    .line 71
    .local v2, "title":Ljava/lang/String;
    const-string v1, "show my dialog"

    .line 72
    .local v1, "message":Ljava/lang/String;
    new-instance v3, Landroid/app/AlertDialog$Builder;

    invoke-direct {v3, p1}, Landroid/app/AlertDialog$Builder;-><init>(Landroid/content/Context;)V

    .line 73
    invoke-virtual {v3, v2}, Landroid/app/AlertDialog$Builder;->setTitle(Ljava/lang/CharSequence;)Landroid/app/AlertDialog$Builder;

    move-result-object v3

    invoke-virtual {v3, v1}, Landroid/app/AlertDialog$Builder;->setMessage(Ljava/lang/CharSequence;)Landroid/app/AlertDialog$Builder;

    move-result-object v0

    .line 75
    .local v0, "dialog":Landroid/app/AlertDialog$Builder;
    invoke-virtual {v0}, Landroid/app/AlertDialog$Builder;->show()Landroid/app/AlertDialog;

    .line 76
    return-void
.end method

# annotations
.annotation system Ldalvik/annotation/EnclosingClass;
    value = Lcom/example/wang/MainActivity;
.end annotation

.annotation system Ldalvik/annotation/InnerClass;
    accessFlags = 0x1
    name = "MyPhone"
.end annotation

EnclosingClass注解表示MainActivity$MyPhone作用于一个类，注解value表明这个类是MainActivity
InnerClass表示它是一个内部类。accessFlags = 0x1是一个访问标志
enum {
    kDexVisibilityBuild     = 0x00,
    kDexVisibilityRuntime   = 0x01,
    kDexVisibilitySystem    = 0x02
}

//MainActivity$Student.smali
.class public Lcom/example/wang/MainActivity$Student;
.super Ljava/lang/Object;
.source "MainActivity.java"


# annotations
.annotation system Ldalvik/annotation/EnclosingClass;
    value = Lcom/example/wang/MainActivity;
.end annotation

.annotation system Ldalvik/annotation/InnerClass;
    accessFlags = 0x1
    name = "Student"
.end annotation


# instance fields
.field private age:I

.field private name:Ljava/lang/String;

.field final synthetic this$0:Lcom/example/wang/MainActivity;


# direct methods
.method public constructor <init>(Lcom/example/wang/MainActivity;)V
    .locals 0

    .prologue
    .line 39
    iput-object p1, p0, Lcom/example/wang/MainActivity$Student;->this$0:Lcom/example/wang/MainActivity;

    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 41
    return-void
.end method

.method public constructor <init>(Lcom/example/wang/MainActivity;Ljava/lang/String;I)V
    .locals 0
    .param p2, "name"    # Ljava/lang/String;
    .param p3, "age"    # I

    .prologue
    .line 43
    iput-object p1, p0, Lcom/example/wang/MainActivity$Student;->this$0:Lcom/example/wang/MainActivity;

    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 44
    iput-object p2, p0, Lcom/example/wang/MainActivity$Student;->name:Ljava/lang/String;

    .line 45
    iput p3, p0, Lcom/example/wang/MainActivity$Student;->age:I

    .line 46
    return-void
.end method


# virtual methods
.method public printf()V
    .locals 3

    .prologue
    .line 49
    const-string v0, "MY_TAG"

    new-instance v1, Ljava/lang/StringBuilder;

    const-string v2, "name:"

    invoke-direct {v1, v2}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    iget-object v2, p0, Lcom/example/wang/MainActivity$Student;->name:Ljava/lang/String;

    invoke-virtual {v1, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v1

    const-string v2, ", age:"

    invoke-virtual {v1, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v1

    iget v2, p0, Lcom/example/wang/MainActivity$Student;->age:I

    invoke-virtual {v1, v2}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;

    move-result-object v1

    invoke-virtual {v1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v1

    invoke-static {v0, v1}, Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I

    .line 50
    return-void
.end method

posted @ 2015-11-14 09:17 牧天阅读(841) 评论(0) 收藏举报

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