WindowUtils（封装工具类）

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import org.apache.http.util.EncodingUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.cnlaunch.golo3.config.ApplicationConfig;
import android.app.Activity;
import android.content.Context;
import android.graphics.Rect;
import android.text.TextUtils;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.WindowManager;

public final class WindowUtils {

    // 图片类型
    public static final String DRAWABLE = "drawable";
    // 字符类型
    public static final String STRING = "string";

    public static DisplayMetrics dm = new DisplayMetrics();

    public static WindowManager wm = (WindowManager) ApplicationConfig.context
            .getSystemService(Context.WINDOW_SERVICE);

    // 屏幕的密度
//ApplicationConfig.resouce = context.getResources();
    public static float scale = ApplicationConfig.resouce.getDisplayMetrics().density;

    // 字体大小的密度
    public static float fontScale = ApplicationConfig.resouce
            .getDisplayMetrics().scaledDensity;

    static {
        wm.getDefaultDisplay().getMetrics(dm);
    }

    /**
     * 获得屏幕的大小
     * 
     * @return new int[]{width,height}
     */
    public static int[] getScreenWidthAndHeight() {
        return new int[] { dm.widthPixels, dm.heightPixels };
    }

    /**
     * 获得除了标题栏之外的屏幕的大小
     * 
     * @param activity
     * @return
     */
    public static int[] getDisplayWidthAndHeight(Activity activity) {
        Rect frame = new Rect();
        activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
        int statusBarHeight = frame.top;
        int[] wh = getScreenWidthAndHeight();
        return new int[] { wh[0], wh[1] - statusBarHeight };
    }

    /**
     * 获取状态栏宽高
     * 
     * @param activity
     * @return
     */
    public static int[] getTitleWidthAndHeight(Activity activity) {
        Rect frame = new Rect();
        activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
        int statusBarHeight = frame.top;
        int[] wh = getScreenWidthAndHeight();
        return new int[] { wh[0], statusBarHeight };
    }

    /**
     * 在onCreate方法或者onstart方法总之窗口没有获得焦点时获取控件 的大小的方法
     * 
     * @return new int[]{width,height}
     */
    public static int[] getViewWidhAndHeight(View view) {
        int w = View.MeasureSpec.makeMeasureSpec(0,
                View.MeasureSpec.UNSPECIFIED);
        int h = View.MeasureSpec.makeMeasureSpec(0,
                View.MeasureSpec.UNSPECIFIED);
        view.measure(w, h);
        int width = view.getMeasuredWidth();
        int height = view.getMeasuredHeight();
        return new int[] { width, height };
    }

    /**
     * 根据手机的分辨率从 dp 的单位 转成为 px(像素)
     */
    public static int dip2px(float dpValue) {
        return (int) (dpValue * scale + 0.5f);
    }

    /**
     * 根据手机的分辨率从 px(像素) 的单位 转成为 dp
     */
    public static int px2dip(float pxValue) {
        return (int) (pxValue / scale + 0.5f);
    }

    /**
     * 将px值转换为sp值，保证文字大小不变
     * 
     * @param pxValue
     * @return
     */
    public static int px2sp(float pxValue) {
        return (int) (pxValue / fontScale + 0.5f);
    }

    /**
     * 将sp值转换为px值，保证文字大小不变
     * 
     * @param spValue
     * @return
     */
    public static int sp2px(float spValue) {
        return (int) (spValue * fontScale + 0.5f);
    }

    

}