Android常用工具类
2016-08-25 本文已影响303人
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Android常用工具的封装
一、获取软件相关工具类public class AppInfoUtils { private AppInfoUtils() { /* cannot be instantiated */ throw new UnsupportedOperationException("cannot be in ...
一、获取软件相关工具类
public class AppInfoUtils {
private AppInfoUtils() {
/* cannot be instantiated */
throw new UnsupportedOperationException("cannot be instantiated");
}
/**
* 获取应用程序名称
*
* @param context
* @return
*/
public static String getAppName(Context context) {
try {
PackageManager packageManager = context.getPackageManager();
PackageInfo packageInfo = packageManager.getPackageInfo(
context.getPackageName(), 0);
int labelRes = packageInfo.applicationInfo.labelRes;
return context.getResources().getString(labelRes);
} catch (NameNotFoundException e) {
e.printStackTrace();
}
return null;
}
/**
* 获取应用程序版本名称信息
*
* @param context
* [url=home.php?mod=space&uid=309376]@return[/url] 当前应用的版本名称
*/
public static String getVersionName(Context context) {
try {
PackageManager packageManager = context.getPackageManager();
PackageInfo packageInfo = packageManager.getPackageInfo(
context.getPackageName(), 0);
return packageInfo.versionName;
} catch (NameNotFoundException e) {
e.printStackTrace();
}
return null;
}
/**
* 获取application节点下的meta信息
*
* @param context
* @param params
* 想要获取的参数
* @return
*/
public static String getMetaInfo(Context context, String params) {
String packageName = context.getPackageName();
// 获取application里面的meta信息
try {
ApplicationInfo appInfo = context.getPackageManager()
.getApplicationInfo(packageName,
PackageManager.GET_META_DATA);
return appInfo.metaData.getString(params);
} catch (Exception e) {
System.out.println("获取渠道失败:" + e);
e.printStackTrace();
}
return null;
}
/**
* 获取启动Activity的intent
*
* @param context
* @return
*/
public static Intent getLaunchIntent(Context context) {
String packageName = context.getPackageName();
PackageManager pm = context.getPackageManager();
Intent intent = pm.getLaunchIntentForPackage(packageName);
return intent;
}
}
二、向服务器提交请求的工具
public class HttpRequest {
public static void httpGetRequest(final String urlPath) {
new Thread() {
@Override
public void run() {
super.run();
try {
URL url = new URL(urlPath);
HttpURLConnection conn = (HttpURLConnection) url
.openConnection();
conn.setRequestMethod("GET");
conn.setConnectTimeout(5000);
BufferedReader bufr = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String line = null;
while ((line = bufr.readLine()) != null) {
System.out.println(line);
}
bufr.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
public static void httpPostRequest(final String urlPath) {
new Thread() {
@Override
public void run() {
super.run();
try {
URL url = new URL(urlPath);
HttpURLConnection conn = (HttpURLConnection) url
.openConnection();
conn.setRequestMethod("POST");
conn.setConnectTimeout(5000);
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setUseCaches(false);
BufferedReader bufr = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String line = null;
while ((line = bufr.readLine()) != null) {
System.out.println(line);
}
bufr.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
public static void httpGetClient(final String urlPath) {
new Thread() {
@Override
public void run() {
super.run();
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet(urlPath);
try {
HttpResponse response = client.execute(request);
InputStream is = response.getEntity().getContent();
BufferedReader bufr = new BufferedReader(
new InputStreamReader(is));
String line = null;
while ((line = bufr.readLine()) != null) {
System.out.println(line);
}
bufr.close();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
public static void statichttpPostClient(String url) {
new Thread() {
@Override
public void run() {
super.run();
HttpClient client = new DefaultHttpClient();
HttpPost request = new HttpPost();
List<NameValuePair> params = new ArrayList<NameValuePair>();
// 建立一个NameValuePair数组，用于存储欲传送的参数
params.add(new BasicNameValuePair("userName", "oppoe"));
params.add(new BasicNameValuePair("password", "123"));
try {
request.setEntity(new UrlEncodedFormEntity(params,
HTTP.UTF_8));
HttpResponse response = client.execute(request);
InputStream is = response.getEntity().getContent();
BufferedReader bufr = new BufferedReader(
new InputStreamReader(is));
String line = null;
while ((line = bufr.readLine()) != null) {
System.out.println(line);
}
bufr.close();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
}
三、打开或关闭软键盘
public class KeyBoardUtils {
/**
* 打卡软键盘
*
* @param mEditText
* 输入框
* @param mContext
* 上下文
*/
public static void openKeybord(EditText mEditText, Context mContext) {
InputMethodManager imm = (InputMethodManager) mContext
.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(mEditText, InputMethodManager.RESULT_SHOWN);
imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,
InputMethodManager.HIDE_IMPLICIT_ONLY);
}
/**
* 关闭软键盘
*
* @param mEditText
* 输入框
* @param mContext
* 上下文
*/
public static void closeKeybord(EditText mEditText, Context mContext) {
InputMethodManager imm = (InputMethodManager) mContext
.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(mEditText.getWindowToken(), 0);
}
}
四、跟网络相关的工具类
public class NetworkUtils {
private NetworkUtils() {
/* cannot be instantiated */
throw new UnsupportedOperationException("cannot be instantiated");
}
/**
* 判断网络是否连接
*
* @param context
* @return
*/
public static boolean isConnected(Context context) {
ConnectivityManager connectivity = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (null != connectivity) {
NetworkInfo info = connectivity.getActiveNetworkInfo();
if (null != info && info.isConnected()) {
if (info.getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
}
return false;
}
/**
* 判断是否是wifi连接
*/
public static boolean isWifi(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (cm == null)
return false;
return cm.getActiveNetworkInfo().getType() == ConnectivityManager.TYPE_WIFI;
}
/**
* 打开网络设置界面
*/
public static void openSetting(Activity activity) {
Intent intent = new Intent("/");
ComponentName cm = new ComponentName("com.android.settings",
"com.android.settings.WirelessSettings");
intent.setComponent(cm);
intent.setAction("android.intent.action.VIEW");
activity.startActivityForResult(intent, 0);
}
}
五、获取手机信
public class PhoneInfoUtils {
private Context context;
private String deviceId;
private String imei;
private String imsi;
private String manufacture;
private String model;
private int screenWidth;
private int screenHeight;
private String version_release;
private String phoneNumber;
public PhoneInfoUtils(Context context) {
this.context = context;
}
public void getPhoneInfo() {
TelephonyManager tm = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);
deviceId = Settings.Secure.getString(context.getContentResolver(),
Settings.Secure.ANDROID_ID);
imsi = tm.getSubscriberId();
imei = tm.getDeviceId();
// 手机制造商
manufacture = Build.MANUFACTURER;
model = Build.MODEL; // 手机型号
DisplayMetrics dm = context.getResources().getDisplayMetrics();
screenWidth = dm.widthPixels;
screenHeight = dm.heightPixels;
version_release = Build.VERSION.RELEASE; // 系统版本号
phoneNumber = tm.getLine1Number(); // 获取手机号码
}
@Override
public String toString() {
return "PhoneInfoUtils [deviceId=" + deviceId + ", imei=" + imei
+ ", imsi=" + imsi + ", manufacture=" + manufacture
+ ", model=" + model + ", screenWidth=" + screenWidth
+ ", screenHeight=" + screenHeight + ", version_release="
+ version_release + ", phoneNumber=" + phoneNumber + "]";
}
}
六、获得屏幕相关的辅助类
public class ScreenUtils {
private ScreenUtils() {
/* cannot be instantiated */
throw new UnsupportedOperationException("cannot be instantiated");
}
/**
* 获得屏幕高度
*
* @param context
* @return
*/
public static int getScreenWidth(Context context) {
WindowManager wm = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics outMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(outMetrics);
return outMetrics.widthPixels;
}
/**
* 获得屏幕宽度
*
* @param context
* @return
*/
public static int getScreenHeight(Context context) {
WindowManager wm = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics outMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(outMetrics);
return outMetrics.heightPixels;
}
/**
* 获得状态栏的高度
*
* @param context
* @return
*/
public static int getStatusHeight(Context context) {
int statusHeight = -1;
try {
Class<?> clazz = Class.forName("com.android.internal.R$dimen");
Object object = clazz.newInstance();
int height = Integer.parseInt(clazz.getField("status_bar_height")
.get(object).toString());
statusHeight = context.getResources().getDimensionPixelSize(height);
} catch (Exception e) {
e.printStackTrace();
}
return statusHeight;
}
/**
* 获取当前屏幕截图，包含状态栏
*
* @param activity
* @return
*/
public static Bitmap snapShotWithStatusBar(Activity activity) {
View view = activity.getWindow().getDecorView();
view.setDrawingCacheEnabled(true);
view.buildDrawingCache();
Bitmap bmp = view.getDrawingCache();
int width = getScreenWidth(activity);
int height = getScreenHeight(activity);
Bitmap bp = null;
bp = Bitmap.createBitmap(bmp, 0, 0, width, height);
view.destroyDrawingCache();
return bp;
}
/**
* 获取当前屏幕截图，不包含状态栏
*
* @param activity
* @return
*/
public static Bitmap snapShotWithoutStatusBar(Activity activity) {
View view = activity.getWindow().getDecorView();
view.setDrawingCacheEnabled(true);
view.buildDrawingCache();
Bitmap bmp = view.getDrawingCache();
Rect frame = new Rect();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
int statusBarHeight = frame.top;
int width = getScreenWidth(activity);
int height = getScreenHeight(activity);
Bitmap bp = null;
bp = Bitmap.createBitmap(bmp, 0, statusBarHeight, width, height
- statusBarHeight);
view.destroyDrawingCache();
return bp;
}
}
七、快速数据存储工具
public class SharedPerUtils {
public SharedPerUtils() {
/* cannot be instantiated */
throw new UnsupportedOperationException("cannot be instantiated");
}
/**
* 保存在手机里面的文件名
*/
public static final String FILE_NAME = "share_data";
/**
* 保存数据的方法，我们需要拿到保存数据的具体类型，然后根据类型调用不同的保存方法
*
* @param context
* @param key
* @param object
*/
public static void put(Context context, String key, Object object) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
if (object instanceof String) {
editor.putString(key, (String) object);
} else if (object instanceof Integer) {
editor.putInt(key, (Integer) object);
} else if (object instanceof Boolean) {
editor.putBoolean(key, (Boolean) object);
} else if (object instanceof Float) {
editor.putFloat(key, (Float) object);
} else if (object instanceof Long) {
editor.putLong(key, (Long) object);
} else {
editor.putString(key, object.toString());
}
SharedPreferencesCompat.apply(editor);
}
/**
* 得到保存数据的方法，我们根据默认值得到保存的数据的具体类型，然后调用相对于的方法获取值
*
* @param context
* @param key
* @param defaultObject
* @return
*/
public static Object get(Context context, String key, Object defaultObject) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
Context.MODE_PRIVATE);
if (defaultObject instanceof String) {
return sp.getString(key, (String) defaultObject);
} else if (defaultObject instanceof Integer) {
return sp.getInt(key, (Integer) defaultObject);
} else if (defaultObject instanceof Boolean) {
return sp.getBoolean(key, (Boolean) defaultObject);
} else if (defaultObject instanceof Float) {
return sp.getFloat(key, (Float) defaultObject);
} else if (defaultObject instanceof Long) {
return sp.getLong(key, (Long) defaultObject);
}
return null;
}
/**
* 移除某个key值已经对应的值
*
* @param context
* @param key
*/
public static void remove(Context context, String key) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
editor.remove(key);
SharedPreferencesCompat.apply(editor);
}
/**
* 清除所有数据
*
* @param context
*/
public static void clear(Context context) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
editor.clear();
SharedPreferencesCompat.apply(editor);
}
/**
* 查询某个key是否已经存在
*
* @param context
* @param key
* @return
*/
public static boolean contains(Context context, String key) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
Context.MODE_PRIVATE);
return sp.contains(key);
}
/**
* 返回所有的键值对
*
* @param context
* @return
*/
public static Map<String, ?> getAll(Context context) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
Context.MODE_PRIVATE);
return sp.getAll();
}
/**
* 创建一个解决SharedPreferencesCompat.apply方法的一个兼容类
*
* @author zhy
*
*/
private static class SharedPreferencesCompat {
private static final Method sApplyMethod = findApplyMethod();
/**
* 反射查找apply的方法
*
* @return
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
private static Method findApplyMethod() {
try {
Class clz = SharedPreferences.Editor.class;
return clz.getMethod("apply");
} catch (NoSuchMethodException e) {
}
return null;
}
/**
* 如果找到则使用apply执行，否则使用commit
*
* @param editor
*/
public static void apply(SharedPreferences.Editor editor) {
try {
if (sApplyMethod != null) {
sApplyMethod.invoke(editor);
return;
}
} catch (IllegalArgumentException e) {
} catch (IllegalAccessException e) {
} catch (InvocationTargetException e) {
}
editor.commit();
}
}
}
八、私钥解码工具类
public class EncodeUtils {
private final static String KEY = "123456789"; // 公钥（只能是数字）
private final static int MODE = 17; // 模数（整数）
// 私钥加密
@SuppressWarnings("unused")
private static String encode(String password) {
if (password != null && !password.trim().equals("")) {
BigInteger bi_value = new BigInteger(password.getBytes());
BigInteger bi_r0 = new BigInteger(KEY);
BigInteger bi_r1 = bi_r0.xor(bi_value);
return bi_r1.toString(MODE);
}
return password;
}
// 私钥解密
public static String decode(String decodeString) {
BigInteger bi_confuse = new BigInteger(KEY);
BigInteger bi_r1 = new BigInteger(decodeString, MODE);
BigInteger bi_r0 = bi_r1.xor(bi_confuse);
return new String(bi_r0.toByteArray());
}
}
九、Toast统一管理类
public class MyToast {
private MyToast() {
/* cannot be instantiated */
throw new UnsupportedOperationException("cannot be instantiated");
}
public static boolean isShow = true;
/**
* 短时间显示Toast
*
* @param context
* @param message
*/
public static void showShort(Context context, CharSequence message) {
if (isShow)
Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
}
/**
* 短时间显示Toast
*
* @param context
* @param message
*/
public static void showShort(Context context, int message) {
if (isShow)
Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
}
/**
* 长时间显示Toast
*
* @param context
* @param message
*/
public static void showLong(Context context, CharSequence message) {
if (isShow)
Toast.makeText(context, message, Toast.LENGTH_LONG).show();
}
/**
* 长时间显示Toast
*
* @param context
* @param message
*/
public static void showLong(Context context, int message) {
if (isShow)
Toast.makeText(context, message, Toast.LENGTH_LONG).show();
}
/**
* 自定义显示Toast时间
*
* @param context
* @param message
* @param duration
*/
public static void show(Context context, CharSequence message, int duration) {
if (isShow)
Toast.makeText(context, message, duration).show();
}
/**
* 自定义显示Toast时间
*
* @param context
* @param message
* @param duration
*/
public static void show(Context context, int message, int duration) {
if (isShow)
Toast.makeText(context, message, duration).show();
}
}
十、Log统一管理类
public class MyLog {
private MyLog() {
/* cannot be instantiated */
throw new UnsupportedOperationException("cannot be instantiated");
}
public static boolean isDebug = true;// 是否需要打印bug，可以在application的onCreate函数里面初始化
// 下面是传入自定义tag的函数
public static void i(String tag, String msg) {
if (isDebug)
Log.i(tag, msg);
}
public static void d(String tag, String msg) {
if (isDebug)
Log.d(tag, msg);
}
public static void e(String tag, String msg) {
if (isDebug)
Log.e(tag, msg);
}
public static void v(String tag, String msg) {
if (isDebug)
Log.v(tag, msg);
}
}
