android 屏幕适配的方法

　　　　　　getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING);
　　　　　　DisplayMetrics metric = new DisplayMetrics();
          getWindowManager().getDefaultDisplay().getMetrics(metric);
        
        int width = metric.widthPixels;
        int height = metric.heightPixels;
        float density = metric.density;
        densityDpi = metric.densityDpi;

final ImageView image = new ImageView(view.getContext());
        double size = densityDpi/160.0*100.0;

        ViewGroup.LayoutParams img = new ViewGroup.LayoutParams((int)size,
        (int)size);
        image.setLayoutParams(img);