使用这个配置的变化

如果机器人：configchanges =方向

if android:configchanges = "orientation"

public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);

        // Checks the orientation of the screen
        if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
            Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
            // for example the width of a layout  
            int width = 300;
            int height = LayoutParams.WRAP_CONTENT;
            WebView childLayout = (WebView) findViewById(R.id.webview);
            childLayout.setLayoutParams(new LayoutParams(width, height));
        } else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
            Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
        }
    }