package com.dl7.player.utils; /**
* Copyright 2014 Zhenguo Jin (jinzhenguo1990@gmail.com)
* <p>
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import android.animation.ValueAnimator;
import android.app.Activity;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.content.res.Configuration;
import android.util.DisplayMetrics;
import android.view.Surface;
import android.view.Window;
import android.view.WindowManager;
/**
* 窗口工具箱
*
* @author zhenguo
*/
public final class WindowUtils {
/**
* Don't let anyone instantiate this class.
*/
private WindowUtils() {
throw new Error("Do not need instantiate!");
}
/**
* 获取当前窗口的旋转角度
*
* @param activity activity
* @return int
*/
public static int getDisplayRotation(Activity activity) {
switch (activity.getWindowManager().getDefaultDisplay().getRotation()) {
case Surface.ROTATION_0:
return 0;
case Surface.ROTATION_90:
return 90;
case Surface.ROTATION_180:
return 180;
case Surface.ROTATION_270:
return 270;
default:
return 0;
}
}
/**
* 当前是否是横屏
*
* @param context context
* @return boolean
*/
public static final boolean isLandscape(Context context) {
return context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
}
/**
* 当前是否是竖屏
*
* @param context context
* @return boolean
*/
public static final boolean isPortrait(Context context) {
return context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT;
}
/**
* 调整窗口的透明度 1.0f,0.5f 变暗
*
* @param from from>=0&&from<=1.0f
* @param to to>=0&&to<=1.0f
* @param context 当前的activity
*/
public static void dimBackground(final float from, final float to, Activity context) {
final Window window = context.getWindow();
ValueAnimator valueAnimator = ValueAnimator.ofFloat(from, to);
valueAnimator.setDuration(500);
valueAnimator.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
WindowManager.LayoutParams params
= window.getAttributes();
params.alpha = (Float) animation.getAnimatedValue();
window.setAttributes(params);
}
});
valueAnimator.start();
}
/**
* 获取界面方向
*/
public static int getScreenOrientation(Activity activity) {
int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
DisplayMetrics dm = new DisplayMetrics();
activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
int width = dm.widthPixels;
int height = dm.heightPixels;
int orientation;
// if the device's natural orientation is portrait:
if ((rotation == Surface.ROTATION_0 || rotation == Surface.ROTATION_180) && height > width ||
(rotation == Surface.ROTATION_90 || rotation == Surface.ROTATION_270) && width > height) {
switch (rotation) {
case Surface.ROTATION_0:
orientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
break;
case Surface.ROTATION_90:
orientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
break;
case Surface.ROTATION_180:
orientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT;
break;
case Surface.ROTATION_270:
orientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE;
break;
default:
orientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
break;
}
}
// if the device's natural orientation is landscape or if the device
// is square:
else {
switch (rotation) {
case Surface.ROTATION_0:
orientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
break;
case Surface.ROTATION_90:
orientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
break;
case Surface.ROTATION_180:
orientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE;
break;
case Surface.ROTATION_270:
orientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT;
break;
default:
orientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
break;
}
}
return orientation;
}
}