Android Utililty Methods Context Get

List of utility methods to do Context Get

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Description

The list of methods to do Context Get are organized into topic(s).

Method

StringgetBatteryUsageInfo(Context context)
Gets the battery info of device, and then writes it to a file. 
Intent batteryIntent = context.getApplicationContext()
        .registerReceiver(null,
                new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
int rawlevel = batteryIntent.getIntExtra("level", -1);
double scale = batteryIntent.getIntExtra("scale", -1);
return String.format("Device has %s of %s battery left", rawlevel,
        scale);
booleangetBoolean(Context context, String key, boolean defValue)
get Boolean 
return getDefaultSharedPreferences(context).getBoolean(key,
        defValue);
StringgetBroadcastAddress(Context context)
get Broadcast Address 
WifiManager wifi = (WifiManager) context
        .getSystemService(Context.WIFI_SERVICE);
DhcpInfo dhcp = wifi.getDhcpInfo();
int broadcast = (dhcp.ipAddress & dhcp.netmask) | ~dhcp.netmask;
byte[] quads = new byte[4];
for (int k = 0; k < 4; k++)
    quads[k] = (byte) (broadcast >> (k * 8));
try {
...
StringgetCarrier(Context context)
get Carrier 
TelephonyManager manager = (TelephonyManager) context
        .getSystemService(Context.TELEPHONY_SERVICE);
return manager.getNetworkOperatorName();
String[]getCertificateFingerprint(Context ctx, String packageName)
Get current certificate fingerprint 
try {
    if (ctx == null || ctx.getPackageManager() == null)
        return null;
    PackageInfo info = ctx.getPackageManager().getPackageInfo(
            packageName, PackageManager.GET_SIGNATURES);
    assert info.signatures != null;
    String[] result = new String[info.signatures.length];
    int i = 0;
...
StringgetCertificateFromSDCard(Context context)
get Certificate From SD Card 
serverCertificate = "";
String baseDir = Environment.getExternalStorageDirectory()
        .getAbsolutePath();
String certificateName = "localhost.crt";
try {
    InputStream in = new BufferedInputStream(new FileInputStream(
            baseDir + File.separator + certificateName));
    serverCertificate = inputStreamToString(in);
...
StringgetChannelNo(Context context)
get Channel No 
String appKey = "";
try {
    ApplicationInfo ai = context.getPackageManager()
            .getApplicationInfo(context.getPackageName(),
                    PackageManager.GET_META_DATA);
    if (null != ai && null != ai.metaData) {
        appKey = ai.metaData.getString("channel");
} catch (Exception e) {
    e.printStackTrace();
return appKey;
intgetConnectedType(Context context)
get Connected Type 
if (context != null) {
    ConnectivityManager mConnectivityManager = (ConnectivityManager) context
            .getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo mNetworkInfo = mConnectivityManager
            .getActiveNetworkInfo();
    if (mNetworkInfo != null && mNetworkInfo.isAvailable()) {
        return mNetworkInfo.getType();
return -1;
intgetConnectedType(Context context)
get Connected Type 
ConnectivityManager cManager = (ConnectivityManager) context
        .getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo nInfo = cManager.getActiveNetworkInfo();
if (nInfo != null && nInfo.isAvailable()) {
    int type = nInfo.getType();
    int subType = nInfo.getSubtype();
    switch (type) {
    case ConnectivityManager.TYPE_MOBILE:
...
StringgetContactDisplayNameByNumber(Context context, String number)
get Contact Display Name By Number 
Uri uri = Uri.withAppendedPath(
        ContactsContract.PhoneLookup.CONTENT_FILTER_URI,
        Uri.encode(number));
String name = "?";
ContentResolver contentResolver = context.getContentResolver();
Cursor contactLookup = contentResolver.query(uri,
        new String[] { BaseColumns._ID,
                ContactsContract.PhoneLookup.DISPLAY_NAME }, null,
...