非IF / ElSE的版本适用于SDK Build版本

Question

I use this simple condition check to show a Toast but none of them is shown:

 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();
        }
    }

How it is possible that none of if and else work?

Answer 1

The main problem was an exception inside the IF block. The exceptions breaks IF / ELSE block. A try/catch block can help detect problem in similar cases.

Answer 2

Try this:

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();
    }
}

OR a more elegant way would be:

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();
    }
}