非IF / ElSE的版本适用于SDK Build版本

Question

我使用此简单的条件检查来显示Toast，但未显示任何内容：

 public void ShowVersion(){

         //This works So I am sure the method is called:
         //Toast.makeText(this,"Method is called",Toast.LENGTH_LONG).show();

        if (Build.VERSION.SDK_INT >= 23) {
            Toast.makeText(this,"Version Supported",Toast.LENGTH_LONG).show();
        } else {
            Toast.makeText(this,"Version not supported",Toast.LENGTH_LONG).show();
        }
    }

如果和其他都不可行？

Answer 1

主要问题是IF块内的异常。异常中断IF / ELSE块。 try/catch块可以在类似情况下帮助发现问题。

Answer 2

尝试一下：

public void ShowVersion(){

     //This works So I am sure the method is called:
     //Toast.makeText(this,"Method is called",Toast.LENGTH_LONG).show();

    if (android.os.Build.VERSION.SDK_INT>=11) {
        Toast.makeText(this,"Version Supported",Toast.LENGTH_LONG).show();
    } else {
        Toast.makeText(this,"Version not supported",Toast.LENGTH_LONG).show();
    }
}

或更优雅的方式是：

public void ShowVersion(){

     //This works So I am sure the method is called:
     //Toast.makeText(this,"Method is called",Toast.LENGTH_LONG).show();

    if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
        Toast.makeText(this,"Version Supported",Toast.LENGTH_LONG).show();
    } else {
        Toast.makeText(this,"Version not supported",Toast.LENGTH_LONG).show();
    }
}