import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.Date;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.PixelFormat;
import android.graphics.drawable.Drawable;
import android.media.AudioManager;
import android.media.MediaMetadataRetriever;
import android.media.ThumbnailUtils;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Build;
import android.provider.MediaStore.Video;
import android.provider.Settings;
import android.provider.Settings.SettingNotFoundException;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.RelativeLayout;
import android.widget.RelativeLayout.LayoutParams;
import android.widget.VideoView;
public class VideoUtils {
/**
* 根据手机的分辨率从 dp或 sp 的单位 转成为 px
*/
public static int dp2px(Context context, float dpValue) {
float scale = context.getResources().getDisplayMetrics().density;
return (int) (dpValue * scale + 0.5f);
}
/**
* 根据手机的分辨率从 px 的单位转成为 dp 或 sp
*/
public static int px2dp(Context context, float pxValue) {
float scale = context.getResources().getDisplayMetrics().density;
return (int) (pxValue / scale + 0.5f);
}
/**
* 获取屏幕高度
*/
public static int getScreenHeight(Context context) {
return context.getResources().getDisplayMetrics().heightPixels;
}
/**
* 获取屏幕宽度
*/
public static int getScreenWidth(Context context) {
return context.getResources().getDisplayMetrics().widthPixels;
}
/**
* 设置Activity为全屏模式
*/
public static void setActivityFullScreenMode(Activity context) {
context.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
}
/**
* 设置Activity为窗口模式???
*/
public static void setActivityWindowScreenMode(Activity context) {
WindowManager.LayoutParams attrs = context.getWindow().getAttributes();
attrs.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);
context.getWindow().setAttributes(attrs);
context.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
}
//********************************************************************************************************************
public static final int FULL_SCREEN = 1;//全屏拉伸模式
public static final int SCREEN_WINDOW = 2;//指定大小模式
public static final int SCREEN_WINDOW_ADAPT = 3;//自适应宽高模式
/**
* 设置VideoView的全屏和窗口模式。<br>
* 全屏拉伸模式 : {@link #FULL_SCREEN} <br>
* 指定大小模式: {@link #SCREEN_WINDOWE}<br>
* 自适应宽高模式 : {@link #SCREEN_WINDOW_ADAPT}
* 这里有很多bug******************************************************************************************************************************************************
*/
public static void setVideoViewLayoutParams(Activity context, VideoView mVideoView, int paramsType) {
int width, height;
switch (paramsType) {
case FULL_SCREEN:
setActivityFullScreenMode(context);
RelativeLayout.LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
((View) mVideoView.getParent()).setLayoutParams(layoutParams);//布局里我们给VideoView设置了一个父布局
mVideoView.setLayoutParams(layoutParams);
break;
case SCREEN_WINDOW:
width = getScreenWidth(context) * 2 / 3;
height = VideoUtils.getScreenHeight(context) * 2 / 3;
RelativeLayout.LayoutParams LayoutParams = new LayoutParams(width, height);
LayoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);
mVideoView.setLayoutParams(LayoutParams);
break;
default://先获取VideoView中资源的大小，然后分别和VideoView控件的大小作对比，当资源宽高大于控件时，缩小，否则放大。
//和加载图片一个样，但是VideoView没有scaleType塑性
int videoWidth = mVideoView.getWidth();
int videoHeight = mVideoView.getHeight();
break;
}
}
//********************************************************************************************************************
/**
* 获取屏幕亮度模式，返回-1代表没有获取到
* 自动调节：Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC=1
* 手动调节：SCREEN_BRIGHTNESS_MODE_MANUAL=0
*/
public static int getScreenBrightnessMode(Context context) {
int screenMode = -1;
try {
screenMode = Settings.System.getInt(context.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE);
} catch (SettingNotFoundException e) {
e.printStackTrace();
}
return screenMode;
}
/**
* 设置屏幕亮度模式
* 自动调节：Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC=1
* 手动调节：SCREEN_BRIGHTNESS_MODE_MANUAL=0
*/
public static void setScreenBrightnessMode(Context context, int value) {
Settings.System.putInt(context.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE, value);
}
/**
* 获取屏幕亮度，获取失败返回-1
*/
public static int getScreenBrightness(Context context) {
int bright = -1;
try {
bright = Settings.System.getInt(context.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS);
} catch (SettingNotFoundException e) {
e.printStackTrace();
}
return bright;
}
/**
* 增加或减小当前屏幕亮度，并在整个系统上生效
*/
public static void setScreenBrightness(Activity context, float value) {
//设置当前【activity】的屏幕亮度
Window mWindow = context.getWindow();
WindowManager.LayoutParams mParams = mWindow.getAttributes();//注意：它的值是从0到1，亮度从暗到全亮
mParams.screenBrightness += value / 255.0F;
if (mParams.screenBrightness > 1) {//设置大于1的值后，虽然获取到的此参数的值被改了，但系统并不使用此值而是使用某一指定值设置亮度
mParams.screenBrightness = 1;
} else if (mParams.screenBrightness < 0.01) {
mParams.screenBrightness = 0.01f;
}
mWindow.setAttributes(mParams);
// 保存设置为【系统】屏幕亮度值。注意它的值是0-255
int newValue = (int) (mParams.screenBrightness * 255.0F + value);// 或者= (int) (getScreenBrightness(context) + value);
if (newValue > 255) newValue = 255;
else if (newValue < 0) newValue = 0;
Log.i("bqt", "亮度=" + mParams.screenBrightness + "，亮度=" + newValue);
Settings.System.putInt(context.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, newValue);
}
//********************************************************************************************************************
/**
* 设置铃声模式
* @param mode 声音模式：AudioManager.RINGER_MODE_NORMAL；静音模式：_SILENT；震动模式：_VIBRATE
*/
public static void setRingerMode(Context context, int mode) {
AudioManager mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
mAudioManager.setRingerMode(mode);
}
/**
* 增加或减小媒体音量
*/
public static void setVoiceVolume(Context context, int value) {
AudioManager mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
// 注意：分为静音(0)，震动(0)，1--7 共九个等级。从静音调为1时，需要调大两个等级；从1调为0时，手机将调整为“震动模式”
int currentVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
//尼玛，我获得的最大值是15
int maxVolume = mAudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
int newVolume = currentVolume + value;
if (newVolume > maxVolume) {
newVolume = maxVolume;
} else if (newVolume < 0) {
newVolume = 0;
}
Log.i("bqt", "音量=" + newVolume);
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, newVolume, 0);
}
/**
* 增加或减小媒体音量，并且显示系统音量控制提示条
*/
public static void setVoiceVolumeAndShowNotification(Context context, boolean isAddVolume) {
AudioManager mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
if (isAddVolume) {
//参数：声音类型，调整音量的方向（只能是增加、减小、不变），可选的标志位（不知道有卵用）
//音乐：AudioManager.STREAM_MUSIC；通话：_VOICE_CALL；系统：_SYSTEM；铃声：_RING；提示音：_NOTIFICATION；闹铃：_ALARM
mAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC, AudioManager.ADJUST_RAISE, AudioManager.FX_FOCUS_NAVIGATION_UP);
} else {
mAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC, AudioManager.ADJUST_LOWER, AudioManager.FX_FOCUS_NAVIGATION_UP);
}
Log.i("bqt", "音量=" + mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC));
}
//********************************************************************************************************************
/**
* 获取视频长度，获取网络视频长度时异常！
*/
public static String getVideoLength(String filePath) {
MediaMetadataRetriever retriever = new MediaMetadataRetriever();
retriever.setDataSource(filePath);
String length = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION);
return length;
}
/**
* 毫秒值装换为时分秒形式
*/
@SuppressWarnings("deprecation")
public static String long2Time(long timeLong) {
Date date = new Date(timeLong);
date.setHours(date.getHours() - 8); //沃日，我们这里比标准时长快了八个小时
SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss ");
return format.format(date);
}
/**
* 获取视频缩略图
* @param filePath 视频文件的路径
*/
public static Bitmap createVideoThumbnail(String filePath) {
return ThumbnailUtils.createVideoThumbnail(filePath, Video.Thumbnails.MINI_KIND);
}
/**
* 获取视频的缩略图
* 先通过ThumbnailUtils来创建一个视频的缩略图，然后再利用ThumbnailUtils来生成指定大小的缩略图。
* 如果想要的缩略图的宽和高都小于MICRO_KIND，则类型要使用MICRO_KIND作为kind的值，这样会节省内存。
* @param videoPath 视频的路径
* @param width 指定输出视频缩略图的宽度
* @param height 指定输出视频缩略图的高度度
* @param kind 参照Thumbnails类中的常量MINI_KIND(512 x 384) 和 MICRO_KIND(96 x 96)
*/
public static Bitmap getVideoThumbnail(String videoPath, int width, int height, int kind) {
// 获取视频的缩略图
Bitmap bitmap = ThumbnailUtils.createVideoThumbnail(videoPath, kind);
bitmap = ThumbnailUtils.extractThumbnail(bitmap, width, height, ThumbnailUtils.OPTIONS_RECYCLE_INPUT);
return bitmap;
}
/**
* 利用反射的方式获取视频缩略图，不建议使用
* @param filePath 视频文件的路径
*/
public static Bitmap createVideoThumbnail2(String filePath) {
Class<?> clazz = null;
Object instance = null;
try {
clazz = Class.forName("android.media.MediaMetadataRetriever");
instance = clazz.newInstance();
Method method = clazz.getMethod("setDataSource", String.class);
method.invoke(instance, filePath);
if (Build.VERSION.SDK_INT <= 9) {
return (Bitmap) clazz.getMethod("captureFrame").invoke(instance);
} else {
byte[] data = (byte[]) clazz.getMethod("getEmbeddedPicture").invoke(instance);
if (data != null) {
Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
if (bitmap != null) return bitmap;
}
return (Bitmap) clazz.getMethod("getFrameAtTime").invoke(instance);
}
} catch (Exception ex) {
} finally {
try {
if (instance != null) {
clazz.getMethod("release").invoke(instance);
}
} catch (Exception ignored) {
}
}
return null;
}
/**
* 将Drawable转化为Bitmap
*/
public static Bitmap drawableToBitmap(Drawable drawable) {
// 取 drawable 的长宽，颜色格式
int w = drawable.getIntrinsicWidth();
int h = drawable.getIntrinsicHeight();
Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565;
// 创建对应 bitmap
Bitmap bitmap = Bitmap.createBitmap(w, h, config);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, w, h);
drawable.draw(canvas);
return bitmap;
}
//********************************************************************************************************************
public static final int NETWORK_TYPE_INVALID = 0;
public static final int NETWORK_TYPE_MOBILE = 1;
public static final int NETWORK_TYPE_WIFI = 2;
/**
* 获取当前网络连接状况
* 网络不可用 : {@link #NETWORK_TYPE_INVALID} <br>
* 蜂窝网络(手机流量) : {@link #NETWORK_TYPE_MOBILE}<br>
* WIFI连接 : {@link #NETWORK_TYPE_WIFI}
*/
public static int getNetworkType(Context context) {
ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = manager.getActiveNetworkInfo();
if (networkInfo != null && networkInfo.isConnected()) {
String type = networkInfo.getTypeName();
if (type.equalsIgnoreCase("WIFI")) {
return NETWORK_TYPE_WIFI;
} else if (type.equalsIgnoreCase("MOBILE")) {
return NETWORK_TYPE_MOBILE;
}
}
return NETWORK_TYPE_INVALID;
}
}