减少图片占用空间

Author: ctj

base_iotutils/src/main/java/com/face_chtj/base_iotutils/TimeUtils.java

@@ -19,6 +19,8 @@
  * {@link #getTime()} 获取当前系统的时间戳
  * {@link #getTodayAddMonthDate(int)} 获取今天添加月份的日期
  * {@link #getUTCTimeStr()} 得到UTC时间，类型为字符串，格式为"yyyy-MM-dd HH:mm
+ * {@link #differentDaysByMillisecond(Date, Date)} 两个Date间隔天数计算
+ * {@link #getWeekOfDate()} 获取当前日期是星期几
  *
  */
 public class TimeUtils {
@@ -125,4 +127,30 @@ public static String getUTCTimeStr() {
         return UTCTimeBuffer.toString();
     }
 
+
+    /**
+     * 两个Date间隔天数计算
+     * @param after 临近的时间
+     * @param before 之前的时间
+     * @return 间隔天数
+     */
+    public static int differentDaysByMillisecond(Date after, Date before) {
+        return Math.abs((int) ((after.getTime() - before.getTime()) / (1000 * 3600 * 24)));
+    }
+
+    /**
+     * 获取当前日期是星期几<br>
+     *
+     * @return 当前日期是星期几
+     */
+    public static String getWeekOfDate() {
+        String[] weekDays = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};
+        Calendar cal = Calendar.getInstance();
+        cal.setTime(new Date());
+        int w = cal.get(Calendar.DAY_OF_WEEK) - 1;
+        if (w < 0)
+            w = 0;
+        return weekDays[w];
+    }
+
 }

base_iotutils/src/main/res/drawable-xxhdpi/app_img.png

@@ -36,19 +36,10 @@ mmm packages/apps/ethNetwork  //
 Ȼ������android studio
 
 -----------------------�ļ�����--------------------------
-cat xxx.txt //�鿴�ļ�����
-
-adb pull sdfilepath computer //��sd�������ļ�������
-
-��Ӧ�ø��Ƶ�system/priv_app
-adb push C:/dell/test.txt /system/
-cat /system/SecureSetting.apk > /system/app/SecureSetting.apk // ��һ�������� cp ʵ�֣���һ���豸��û�а��������
-
-rm -r path ɾ���ļ����ļ��µ�����
-rm  path   ɾ���ļ�
+cat /sdcard/xxx.txt //�鿴�ļ�����
 
 ls -al   �鿴�ļ�Ȩ��
-chmod 765 filename ΪӦ������Ȩ��
+chmod 777 filename ΪӦ������Ȩ��
 -------------------------------------------------
 ----------xshell/putty �ļ����
 rz �ϴ��ļ�
@@ -85,14 +76,7 @@ wm density 480  //
 -------------------------------------------------
 logcat -b radio -v time //�鿴����
 -------------------------------------------------
-adb logcat V/D/I/W/E/F/S �鿴��־
-  V    Verbose
-  D    Debug
-  I    Info
-  W    Warn
-  E    Error
-  F    Fatal
-  S    Silent (supress all output)
+adb logcat -V/D/I/W/E/F/S �鿴��־
  //���������־
 adb logcat -c -b main -b events -b radio -b system
 -----------------------------------------------
@@ -104,10 +88,6 @@ mount -o rw,remount /system  system
 
 mount -o rw,remount -t ext4 /system //ͨ��
 
-mount -o rw,remount -t ext4 /dev/block/platform/ff0f0000.dwmmc/by-name/system 3288��д
-
-mount -o ro,remount -t ext4 /dev/block/platform/ff0f0000.dwmmc/by-name/system 3288ֻ��
-
 #����MainActivity�����ٶ� ִ��10�� ���Բ鿴ƽ��ֵ
 adb shell am start -S -R 10 -W packagename/.MainActivity
 
@@ -129,4 +109,12 @@ el 
 
 # ��ȡ����Ӧ��
 java: dumpsys window | grep mCurrentFocus
-cmd:adb shell dumpsys window | findstr mCurrentFocus
+cmd:adb shell dumpsys window | findstr mCurrentFocus
+
+# android 4.4.2���Ҵ���50M���ļ���ָ���ļ���
+cd sdcard;busybox find ./ -size +51200k > /sdcard/report.txt;cd /
+
+# android 7.1.2���Ҵ���50M���ļ���ָ���ļ���
+find sdcard/ -size +50M > /sdcard/report.txt
+#�г�sdcar�ļ����²㼶Ϊ1 ���ļ���Ϣ
+du -m -d 1 /sdcard/*