smali入门之try..catch
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照着说明,写了一遍代码,将一个字符串转换为整形,捕获异常:
.class public Lcom/alipay/helloworld/MainActivity;.super Landroid/app/Activity;.source "MainActivity.java"# direct methods.method public constructor <init>()V .locals 0 .prologue .line 7 invoke-direct {p0}, Landroid/app/Activity;-><init>()V return-void.end method# virtual methods.method protected onCreate(Landroid/os/Bundle;)V .locals 3 .parameter "savedInstanceState" .prologue .line 11 invoke-super {p0, p1}, Landroid/app/Activity;->onCreate(Landroid/os/Bundle;)V .line 12 const/high16 v2, 0x7f03 invoke-virtual {p0, v2}, Lcom/alipay/helloworld/MainActivity;->setContentView(I)V const-string v1, "92a8" :try_start invoke-static {v1}, Ljava/lang/Integer;->parseInt(Ljava/lang/String;)I move-result v1 :try_end .catch Ljava/lang/Exception;{:try_start .. :try_end} :handler_1 :goto_0 return-void :handler_1 move-exception v0 invoke-virtual {v0}, Ljava/lang/Exception;->toString()Ljava/lang/String; move-result-object v0 invoke-virtual {p0, v0}, Lcom/alipay/helloworld/MainActivity;->showToastMessage(Ljava/lang/String;)V goto :goto_0.end method.method public showToastMessage(Ljava/lang/String;)V .locals 1 const/4 v0, 0x01 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 return-void.end method
效果如下:
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