原文地址:http://blog.csdn.net/zhaokaiqiang1992
以下内容来自多个开源项目的整理和自己的项目积累
收集设备信息,用于信息统计分析
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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();
}
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是否有SD卡
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public
static
boolean
haveSDCard() {
return
android.os.Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED);
}
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动态隐藏软键盘
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@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
);
}
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动态显示软键盘
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@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
);
}
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动态显示或者是隐藏软键盘
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@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
);
}
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主动回到Home,后台运行
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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);
}
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获取状态栏高度
注意,要在onWindowFocusChanged中调用,在onCreate中获取高度为0
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@TargetApi
(Build.VERSION_CODES.CUPCAKE)
public
static
int
getStatusBarHeight(Activity activity) {
Rect frame =
new
Rect();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
return
frame.top;
}
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获取状态栏高度+标题栏(ActionBar)高度
(注意,如果没有ActionBar,那么获取的高度将和上面的是一样的,只有状态栏的高度)
public static int getTopBarHeight(Activity activity) { return activity.getWindow().findViewById(Window.ID_ANDROID_CONTENT) .getTop(); }
获取MCC+MNC代码 (SIM卡运营商国家代码和运营商网络代码)
仅当用户已在网络注册时有效, CDMA 可能会无效(中国移动:46000 46002, 中国联通:46001,中国电信:46003)
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public
static
String getNetworkOperator(Context context) {
TelephonyManager telephonyManager = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);
return
telephonyManager.getNetworkOperator();
}
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返回移动网络运营商的名字
(例:中国联通、中国移动、中国电信) 仅当用户已在网络注册时有效, CDMA 可能会无效)
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public
static
String getNetworkOperatorName(Context context) {
TelephonyManager telephonyManager = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);
return
telephonyManager.getNetworkOperatorName();
}
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返回移动终端类型
-
PHONE_TYPE_NONE :0 手机制式未知
-
PHONE_TYPE_GSM :1 手机制式为GSM,移动和联通
-
PHONE_TYPE_CDMA :2 手机制式为CDMA,电信
-
PHONE_TYPE_SIP:3
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public
static
int
getPhoneType(Context context) {
TelephonyManager telephonyManager = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);
return
telephonyManager.getPhoneType();
}
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判断手机连接的网络类型(2G,3G,4G)
联通的3G为UMTS或HSDPA,移动和联通的2G为GPRS或EGDE,电信的2G为CDMA,电信的3G为EVDO
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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;
}
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判断当前手机的网络类型(WIFI还是2,3,4G)
需要用到上面的方法
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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;
}
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