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1、撥打電話

public static void call(Context context, String phoneNumber) {

?context.startActivity(new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phoneNumber)));

}

需要添加權限

2、跳轉至撥號界面

public static void callDial(Context context, String phoneNumber) {

context.startActivity(new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + phoneNumber)));

}

3、發送短信

public static void sendSms(Context context, String phoneNumber,

String content) {

Uri uri = Uri.parse("smsto:"

+ (TextUtils.isEmpty(phoneNumber) ? "" : phoneNumber));

Intent intent = new Intent(Intent.ACTION_SENDTO, uri);

intent.putExtra("sms_body", TextUtils.isEmpty(content) ? "" : content);

context.startActivity(intent);

}

5、喚醒屏幕并解鎖

public static void wakeUpAndUnlock(Context context){

KeyguardManager km= (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);

KeyguardManager.KeyguardLock kl = km.newKeyguardLock("unLock");

//解鎖

kl.disableKeyguard();

//獲取電源管理器對象

PowerManager pm=(PowerManager) context.getSystemService(Context.POWER_SERVICE);

//獲取PowerManager.WakeLock對象,后面的參數|表示同時傳入兩個值,最后的是LogCat里用的Tag

PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | ? ? ? ? ?PowerManager.SCREEN_DIM_WAKE_LOCK,"bright");

//點亮屏幕

wl.acquire();

//釋放

wl.release();

}

需要添加權限

6、判斷當前App處于前臺還是后臺狀態

public static boolean isApplicationBackground(final Context context) {

ActivityManager am = (ActivityManager) context

.getSystemService(Context.ACTIVITY_SERVICE);

@SuppressWarnings("deprecation")

List tasks = am.getRunningTasks(1);

if (!tasks.isEmpty()) {

ComponentName topActivity = tasks.get(0).topActivity;

if (!topActivity.getPackageName().equals(context.getPackageName())) {

return true;

}

return false;

}

需要添加權限

android:name="android.permission.GET_TASKS" />

7、判斷當前手機是否處于鎖屏(睡眠)狀態

public static boolean isSleeping(Context context) {

KeyguardManager kgMgr = (KeyguardManager) context

.getSystemService(Context.KEYGUARD_SERVICE);

boolean isSleeping = kgMgr.inKeyguardRestrictedInputMode();

return isSleeping;

}

8、判斷當前是否有網絡連接

public static boolean isOnline(Context context) {

ConnectivityManager manager = (ConnectivityManager) context

.getSystemService(Activity.CONNECTIVITY_SERVICE);

NetworkInfo info = manager.getActiveNetworkInfo();

if (info != null && info.isConnected()) {

return true;

}

return false;

}

9、判斷當前是否是WIFI連接狀態

public static boolean isWifiConnected(Context context) {

ConnectivityManager connectivityManager = (ConnectivityManager) context

.getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo wifiNetworkInfo = connectivityManager

.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

if (wifiNetworkInfo.isConnected()) {

return true;

}

return false;

}

10、安裝APK

public static void installApk(Context context, File file) {

Intent intent = new Intent();

intent.setAction("android.intent.action.VIEW");

intent.addCategory("android.intent.category.DEFAULT");

intent.setType("application/vnd.android.package-archive");

intent.setDataAndType(Uri.fromFile(file),

"application/vnd.android.package-archive");

intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

context.startActivity(intent);

}

11、判斷當前設備是否為手機

public static boolean isPhone(Context context) {

TelephonyManager telephony = (TelephonyManager) context

.getSystemService(Context.TELEPHONY_SERVICE);

if (telephony.getPhoneType() == TelephonyManager.PHONE_TYPE_NONE) {

return false;

} else {

return true;

}

12、獲取當前設備寬高，單位px

@SuppressWarnings("deprecation")

public static int getDeviceWidth(Context context) {

WindowManager manager = (WindowManager) context

.getSystemService(Context.WINDOW_SERVICE);

return manager.getDefaultDisplay().getWidth();

}

@SuppressWarnings("deprecation")

public static int getDeviceHeight(Context context) {

WindowManager manager = (WindowManager) context

.getSystemService(Context.WINDOW_SERVICE);

return manager.getDefaultDisplay().getHeight();

}

13、獲取當前設備的IMEI，需要與上面的isPhone()一起使用

@TargetApi(Build.VERSION_CODES.CUPCAKE)

public static String getDeviceIMEI(Context context) {

String deviceId;

if (isPhone(context)) {

TelephonyManager telephony = (TelephonyManager) context

.getSystemService(Context.TELEPHONY_SERVICE);

deviceId = telephony.getDeviceId();

} else {

deviceId = Settings.Secure.getString(context.getContentResolver(),

Settings.Secure.ANDROID_ID);

}

return deviceId;

}

14、獲取當前設備的MAC地址

public static String getMacAddress(Context context) {

String macAddress;

WifiManager wifi = (WifiManager) context

.getSystemService(Context.WIFI_SERVICE);

WifiInfo info = wifi.getConnectionInfo();

macAddress = info.getMacAddress();

if (null == macAddress) {

return "";

}

macAddress = macAddress.replace(":", "");

return macAddress;

}

15、獲取當前程序的版本號

public static String getAppVersion(Context context) {

String version = "0";

try {

version = context.getPackageManager().getPackageInfo(

context.getPackageName(), 0).versionName;

} catch (PackageManager.NameNotFoundException e) {

e.printStackTrace();

}

return version;

}

1、收集設備信息，用于信息統計分析

public static Properties collectDeviceInfo(Context context) {

Properties mDeviceCrashInfo = new Properties();

try {

PackageManager pm = context.getPackageManager();

PackageInfo pi = pm.getPackageInfo(context.getPackageName(),

PackageManager.GET_ACTIVITIES);

if (pi != null) {

mDeviceCrashInfo.put(VERSION_NAME,

pi.versionName == null ? "not set" : pi.versionName);

mDeviceCrashInfo.put(VERSION_CODE, pi.versionCode);

}

} catch (PackageManager.NameNotFoundException e) {

Log.e(TAG, "Error while collect package info", e);

}

Field[] fields = Build.class.getDeclaredFields();

for (Field field : fields) {

try {

field.setAccessible(true);

mDeviceCrashInfo.put(field.getName(), field.get(null));

} catch (Exception e) {

Log.e(TAG, "Error while collect crash info", e);

}

return mDeviceCrashInfo;

}

public static String collectDeviceInfoStr(Context context) {

Properties prop = collectDeviceInfo(context);

Set deviceInfos = prop.keySet();

StringBuilder deviceInfoStr = new StringBuilder("{\n");

for (Iterator iter = deviceInfos.iterator(); iter.hasNext();) {

Object item = iter.next();

deviceInfoStr.append("\t\t\t" + item + ":" + prop.get(item)

+ ", \n");

}

deviceInfoStr.append("}");

return deviceInfoStr.toString();

}

2、是否有SD卡

public static boolean haveSDCard() {

return android.os.Environment.getExternalStorageState().equals(

android.os.Environment.MEDIA_MOUNTED);

}

3、動態隱藏軟鍵盤

@TargetApi(Build.VERSION_CODES.CUPCAKE)

public static void hideSoftInput(Activity activity) {

View view = activity.getWindow().peekDecorView();

if (view != null) {

InputMethodManager inputmanger = (InputMethodManager) activity

.getSystemService(Context.INPUT_METHOD_SERVICE);

inputmanger.hideSoftInputFromWindow(view.getWindowToken(), 0);

}

@TargetApi(Build.VERSION_CODES.CUPCAKE)

public static void hideSoftInput(Context context, EditText edit) {

edit.clearFocus();

InputMethodManager inputmanger = (InputMethodManager) context

.getSystemService(Context.INPUT_METHOD_SERVICE);

inputmanger.hideSoftInputFromWindow(edit.getWindowToken(), 0);

}

4、動態顯示軟鍵盤

@TargetApi(Build.VERSION_CODES.CUPCAKE)

public static void showSoftInput(Context context, EditText edit) {

edit.setFocusable(true);

edit.setFocusableInTouchMode(true);

edit.requestFocus();

InputMethodManager inputManager = (InputMethodManager) context

.getSystemService(Context.INPUT_METHOD_SERVICE);

inputManager.showSoftInput(edit, 0);

}

5、動態顯示或者是隱藏軟鍵盤

@TargetApi(Build.VERSION_CODES.CUPCAKE)

public static void toggleSoftInput(Context context, EditText edit) {

edit.setFocusable(true);

edit.setFocusableInTouchMode(true);

edit.requestFocus();

InputMethodManager inputManager = (InputMethodManager) context

.getSystemService(Context.INPUT_METHOD_SERVICE);

inputManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);

}

6、主動回到Home，后臺運行

public static void goHome(Context context) {

Intent mHomeIntent = new Intent(Intent.ACTION_MAIN);

mHomeIntent.addCategory(Intent.CATEGORY_HOME);

mHomeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK

| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

context.startActivity(mHomeIntent);

}

7、獲取狀態欄高度

注意，要在onWindowFocusChanged中調用，在onCreate中獲取高度為0

@TargetApi(Build.VERSION_CODES.CUPCAKE)

public static int getStatusBarHeight(Activity activity) {

Rect frame = new Rect();

activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);

return frame.top;

}

8、獲取狀態欄高度＋標題欄(ActionBar)高度

(注意，如果沒有ActionBar，那么獲取的高度將和上面的是一樣的，只有狀態欄的高度)

public static int getTopBarHeight(Activity activity) {

return activity.getWindow().findViewById(Window.ID_ANDROID_CONTENT)

.getTop();

}

9、獲取MCC+MNC代碼 (SIM卡運營商國家代碼和運營商網絡代碼)

僅當用戶已在網絡注冊時有效, CDMA 可能會無效（中國移動：46000 46002, 中國聯通：46001,中國電信：46003）

public static String getNetworkOperator(Context context) {

TelephonyManager telephonyManager = (TelephonyManager) context

.getSystemService(Context.TELEPHONY_SERVICE);

return telephonyManager.getNetworkOperator();

}

10、返回移動網絡運營商的名字

(例：中國聯通、中國移動、中國電信) 僅當用戶已在網絡注冊時有效, CDMA 可能會無效)

public static String getNetworkOperatorName(Context context) {

TelephonyManager telephonyManager = (TelephonyManager) context

.getSystemService(Context.TELEPHONY_SERVICE);

return telephonyManager.getNetworkOperatorName();

}

11、返回移動終端類型

PHONE_TYPE_NONE :0 手機制式未知

PHONE_TYPE_GSM :1 手機制式為GSM，移動和聯通

PHONE_TYPE_CDMA :2 手機制式為CDMA，電信

PHONE_TYPE_SIP:3

public static int getPhoneType(Context context) {

TelephonyManager telephonyManager = (TelephonyManager) context

.getSystemService(Context.TELEPHONY_SERVICE);

return telephonyManager.getPhoneType();

}

12、判斷手機連接的網絡類型(2G,3G,4G)

聯通的3G為UMTS或HSDPA，移動和聯通的2G為GPRS或EGDE，電信的2G為CDMA，電信的3G為EVDO

public class Constants {

/**

* Unknown network class

public static final int NETWORK_CLASS_UNKNOWN = 0;

/**

* wifi net work

public static final int NETWORK_WIFI = 1;

/**

* "2G" networks

public static final int NETWORK_CLASS_2_G = 2;

/**

* "3G" networks

public static final int NETWORK_CLASS_3_G = 3;

/**

* "4G" networks

public static final int NETWORK_CLASS_4_G = 4;

}

public static int getNetWorkClass(Context context) {

TelephonyManager telephonyManager = (TelephonyManager) context

.getSystemService(Context.TELEPHONY_SERVICE);

switch (telephonyManager.getNetworkType()) {

case TelephonyManager.NETWORK_TYPE_GPRS:

case TelephonyManager.NETWORK_TYPE_EDGE:

case TelephonyManager.NETWORK_TYPE_CDMA:

case TelephonyManager.NETWORK_TYPE_1xRTT:

case TelephonyManager.NETWORK_TYPE_IDEN:

return Constants.NETWORK_CLASS_2_G;

case TelephonyManager.NETWORK_TYPE_UMTS:

case TelephonyManager.NETWORK_TYPE_EVDO_0:

case TelephonyManager.NETWORK_TYPE_EVDO_A:

case TelephonyManager.NETWORK_TYPE_HSDPA:

case TelephonyManager.NETWORK_TYPE_HSUPA:

case TelephonyManager.NETWORK_TYPE_HSPA:

case TelephonyManager.NETWORK_TYPE_EVDO_B:

case TelephonyManager.NETWORK_TYPE_EHRPD:

case TelephonyManager.NETWORK_TYPE_HSPAP:

return Constants.NETWORK_CLASS_3_G;

case TelephonyManager.NETWORK_TYPE_LTE:

return Constants.NETWORK_CLASS_4_G;

default:

return Constants.NETWORK_CLASS_UNKNOWN;

}

13、判斷當前手機的網絡類型(WIFI還是2,3,4G)

需要用到上面的方法

public static int getNetWorkStatus(Context context) {

int netWorkType = Constants.NETWORK_CLASS_UNKNOWN;

ConnectivityManager connectivityManager = (ConnectivityManager) context

.getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();

if (networkInfo != null && networkInfo.isConnected()) {

int type = networkInfo.getType();

if (type == ConnectivityManager.TYPE_WIFI) {

netWorkType = Constants.NETWORK_WIFI;

} else if (type == ConnectivityManager.TYPE_MOBILE) {

netWorkType = getNetWorkClass(context);

}

return netWorkType;

}

1、px-dp轉換

public static int dip2px(Context context, float dpValue) {

final float scale = context.getResources().getDisplayMetrics().density;

return (int) (dpValue * scale + 0.5f);

}

public static int px2dip(Context context, float pxValue) {

final float scale = context.getResources().getDisplayMetrics().density;

return (int) (pxValue / scale + 0.5f);

}

2、px-sp轉換

public static int px2sp(Context context, float pxValue) {

final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;

return (int) (pxValue / fontScale + 0.5f);

}

public static int sp2px(Context context, float spValue) {

final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;

return (int) (spValue * fontScale + 0.5f);

}

3、把一個毫秒數轉化成時間字符串

格式為小時/分/秒/毫秒（如：24903600 –> 06小時55分03秒600毫秒）

/**

* @param millis

*? ? ? ? ? ? 要轉化的毫秒數。

* @param isWhole

*? ? ? ? ? ? 是否強制全部顯示小時/分/秒/毫秒。

* @param isFormat

*? ? ? ? ? ? 時間數字是否要格式化，如果true：少位數前面補全；如果false：少位數前面不補全。

* @return 返回時間字符串：小時/分/秒/毫秒的格式（如：24903600 --> 06小時55分03秒600毫秒）。

public static String millisToString(long millis, boolean isWhole,

boolean isFormat) {

String h = "";

String m = "";

String s = "";

String mi = "";

if (isWhole) {

h = isFormat ? "00小時" : "0小時";

m = isFormat ? "00分" : "0分";

s = isFormat ? "00秒" : "0秒";

mi = isFormat ? "00毫秒" : "0毫秒";

}

long temp = millis;

long hper = 60 * 60 * 1000;

long mper = 60 * 1000;

long sper = 1000;

if (temp / hper > 0) {

if (isFormat) {

h = temp / hper < 10 ? "0" + temp / hper : temp / hper + "";

} else {

h = temp / hper + "";

}

h += "小時";

}

temp = temp % hper;

if (temp / mper > 0) {

if (isFormat) {

m = temp / mper < 10 ? "0" + temp / mper : temp / mper + "";

} else {

m = temp / mper + "";

}

m += "分";

}

temp = temp % mper;

if (temp / sper > 0) {

if (isFormat) {

s = temp / sper < 10 ? "0" + temp / sper : temp / sper + "";

} else {

s = temp / sper + "";

}

s += "秒";

}

temp = temp % sper;

mi = temp + "";

if (isFormat) {

if (temp < 100 && temp >= 10) {

mi = "0" + temp;

}

if (temp < 10) {

mi = "00" + temp;

}

mi += "毫秒";

return h + m + s + mi;

}

格式為小時/分/秒/毫秒（如：24903600 –> 06小時55分03秒）。

/**

* @param millis

*? ? ? ? ? ? 要轉化的毫秒數。

* @param isWhole

*? ? ? ? ? ? 是否強制全部顯示小時/分/秒/毫秒。

* @param isFormat

*? ? ? ? ? ? 時間數字是否要格式化，如果true：少位數前面補全；如果false：少位數前面不補全。

* @return 返回時間字符串：小時/分/秒/毫秒的格式（如：24903600 --> 06小時55分03秒）。

public static String millisToStringMiddle(long millis, boolean isWhole,

boolean isFormat) {

return millisToStringMiddle(millis, isWhole, isFormat, "小時", "分鐘", "秒");

}

public static String millisToStringMiddle(long millis, boolean isWhole,

boolean isFormat, String hUnit, String mUnit, String sUnit) {

String h = "";

String m = "";

String s = "";

if (isWhole) {

h = isFormat ? "00" + hUnit : "0" + hUnit;

m = isFormat ? "00" + mUnit : "0" + mUnit;

s = isFormat ? "00" + sUnit : "0" + sUnit;

}

long temp = millis;

long hper = 60 * 60 * 1000;

long mper = 60 * 1000;

long sper = 1000;

if (temp / hper > 0) {

if (isFormat) {

h = temp / hper < 10 ? "0" + temp / hper : temp / hper + "";

} else {

h = temp / hper + "";

}

h += hUnit;

}

temp = temp % hper;

if (temp / mper > 0) {

if (isFormat) {

m = temp / mper < 10 ? "0" + temp / mper : temp / mper + "";

} else {

m = temp / mper + "";

}

m += mUnit;

}

temp = temp % mper;

if (temp / sper > 0) {

if (isFormat) {

s = temp / sper < 10 ? "0" + temp / sper : temp / sper + "";

} else {

s = temp / sper + "";

}

s += sUnit;

}

return h + m + s;

}

4、把一個毫秒數轉化成時間字符串。格式為小時/分/秒/毫秒（如：24903600 –> 06小時55分鐘）

/**

* @param millis

*? ? ? ? ? ? 要轉化的毫秒數。

* @param isWhole

*? ? ? ? ? ? 是否強制全部顯示小時/分。

* @param isFormat

*? ? ? ? ? ? 時間數字是否要格式化，如果true：少位數前面補全；如果false：少位數前面不補全。

* @return 返回時間字符串：小時/分/秒/毫秒的格式（如：24903600 --> 06小時55分鐘）。

public static String millisToStringShort(long millis, boolean isWhole,

boolean isFormat) {

String h = "";

String m = "";

if (isWhole) {

h = isFormat ? "00小時" : "0小時";

m = isFormat ? "00分鐘" : "0分鐘";

}

long temp = millis;

long hper = 60 * 60 * 1000;

long mper = 60 * 1000;

long sper = 1000;

if (temp / hper > 0) {

if (isFormat) {

h = temp / hper < 10 ? "0" + temp / hper : temp / hper + "";

} else {

h = temp / hper + "";

}

h += "小時";

}

temp = temp % hper;

if (temp / mper > 0) {

if (isFormat) {

m = temp / mper < 10 ? "0" + temp / mper : temp / mper + "";

} else {

m = temp / mper + "";

}

m += "分鐘";

}

return h + m;

}

5、把日期毫秒轉化為字符串

/**

* @param millis

*? ? ? ? ? ? 要轉化的日期毫秒數。

* @param pattern

*? ? ? ? ? ? 要轉化為的字符串格式（如：yyyy-MM-dd HH:mm:ss）。

* @return 返回日期字符串。

public static String millisToStringDate(long millis, String pattern) {

SimpleDateFormat format = new SimpleDateFormat(pattern,

Locale.getDefault());

return format.format(new Date(millis));

}

6、把日期毫秒轉化為字符串（文件名）

/**

* @param millis

*? ? ? ? ? ? 要轉化的日期毫秒數。

* @param pattern

*? ? ? ? ? ? 要轉化為的字符串格式（如：yyyy-MM-dd HH:mm:ss）。

* @return 返回日期字符串（yyyy_MM_dd_HH_mm_ss）。

public static String millisToStringFilename(long millis, String pattern) {

String dateStr = millisToStringDate(millis, pattern);

return dateStr.replaceAll("[- :]", "_");

}

7、轉換當前時間為易用時間格式

1小時內用，多少分鐘前；超過1小時，顯示時間而無日期；如果是昨天，則顯示昨天超過昨天再顯示日期；超過1年再顯示年。

public static long oneHourMillis = 60 * 60 * 1000; // 一小時的毫秒數

public static long oneDayMillis = 24 * oneHourMillis; // 一天的毫秒數

public static long oneYearMillis = 365 * oneDayMillis; // 一年的毫秒數

public static String millisToLifeString(long millis) {

long now = System.currentTimeMillis();

long todayStart = string2Millis(millisToStringDate(now, "yyyy-MM-dd"),

"yyyy-MM-dd");

// 一小時內

if (now - millis <= oneHourMillis && now - millis > 0l) {

String m = millisToStringShort(now - millis, false, false);

return "".equals(m) ? "1分鐘內" : m + "前";

}

// 大于今天開始開始值，小于今天開始值加一天（即今天結束值）

if (millis >= todayStart && millis <= oneDayMillis + todayStart) {

return "今天 " + millisToStringDate(millis, "HH:mm");

}

// 大于（今天開始值減一天，即昨天開始值）

if (millis > todayStart - oneDayMillis) {

return "昨天 " + millisToStringDate(millis, "HH:mm");

}

long thisYearStart = string2Millis(millisToStringDate(now, "yyyy"),

"yyyy");

// 大于今天小于今年

if (millis > thisYearStart) {

return millisToStringDate(millis, "MM月dd日 HH:mm");

}

return millisToStringDate(millis, "yyyy年MM月dd日 HH:mm");

}

8、字符串解析成毫秒數

public static long string2Millis(String str, String pattern) {

SimpleDateFormat format = new SimpleDateFormat(pattern,

Locale.getDefault());

long millis = 0;

try {

millis = format.parse(str).getTime();

} catch (ParseException e) {

Log.e("TAG", e.getMessage());

}

return millis;

}

9、手機號碼正則

public static final String REG_PHONE_CHINA = "^((13[0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}$";

10、郵箱正則

public static final String REG_EMAIL = "\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*";

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美国产综合欧美视频

Android常用代碼集

Android常用代碼集

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三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美 国产 综合 欧美 视频

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