The difference between SetBackground and setbackgrounddrawable

I use the SetBackground method when I use the Android version 4.0.4, the program crashes.

Tip:caused By:java.lang.NoSuchMethodError:android.widget.ImageView.setBackground

All information is related to the Android version of the system.

By looking for a source greater than or equal to API16

First Look at setbackgrounddrawable

Tip This method is obsolete and has been replaced by the SetBackground method

Let's take a look at the SetBackground method

In the source code less than API16, only found the Setbackgrounddrawable method, did not find SetBackground method

thereby obtaining

(1) After API16, the Android system is replaced by the SetBackground method Setbackgrounddrawable method, but after viewing the source code, The Setbackgrounddrawable method is called directly in the SetBackground method, so setbackground can be used after API16, or setbackgrounddrawable can be used, However, using the setbackgrounddrawable hint is obsolete.

(2) Before the API, the Android value provides the Setbackgrounddrawable method.

So we can make judgments in the program.

/**     * Use setbackgrounddrawable before API16, use SetBackground after API16 api16<     ---->4.1     * @param view     * @param drawable */    private void setbackgroundofversion (view view, drawable drawable) {        if ( Build.VERSION.SDK_INT >= build.version_codes. Jelly_bean) {            //android system is greater than or equal to API16, using SetBackground            view.setbackground (drawable);        } else {            // Android system is less than API16, use SetBackground            view.setbackgrounddrawable (drawable);        }    }

The difference between SetBackground and setbackgrounddrawable