Example usage for android.content Context registerReceiver

Introduction

In this page you can find the example usage for android.content Context registerReceiver.

Prototype

@Nullable
public abstract Intent registerReceiver(@Nullable BroadcastReceiver receiver, IntentFilter filter);

Source Link

Document

Usage

From source file:Main.java

public static float level(Context context) {
    Intent batteryIntent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    int level = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
    int scale = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);

    // Error checking that probably isn't needed but I added just in case.
    if (level == -1 || scale == -1)
        return 50.0f;

    return ((float) level / (float) scale) * 100.0f;
}

From source file:Main.java

public static boolean isPowerConnected(Context context) {
    Intent intent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    if (intent == null) {
        return true;
    }/*from www. j  a  v  a  2  s . c om*/
    int plugged = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
    return plugged == BatteryManager.BATTERY_PLUGGED_AC || plugged == BatteryManager.BATTERY_PLUGGED_USB
            || plugged == BatteryManager.BATTERY_PLUGGED_WIRELESS;
}

From source file:Main.java

public static float getBatteryLevel(Context context) {
    Intent batteryIntent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    int level = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
    int scale = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);

    // Error checking that probably isn't needed but I added just in case.
    if (level == -1 || scale == -1) {
        return 50.0f;
    }/*w  w w .j  a  va2 s .c  o m*/

    return ((float) level / (float) scale) * 100.0f;
}

From source file:Main.java

private static Float getBatteryLevel(Context context) {
    Intent batteryIntent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    int level = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
    int scale = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);

    // Error checking that probably isn't needed but I added just in case.
    if (level == -1 || scale == -1) {
        return 50.0f;
    }//  w  ww . j a v  a 2s  .  c  o m

    return ((float) level / (float) scale) * 100.0f;
}

From source file:Main.java

public static float getCurrentBattery(Context context) {
    Intent batteryInfoIntent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    int status = batteryInfoIntent.getIntExtra("status", 0);
    int health = batteryInfoIntent.getIntExtra("health", 1);
    boolean present = batteryInfoIntent.getBooleanExtra("present", false);
    int level = batteryInfoIntent.getIntExtra("level", 0);
    int scale = batteryInfoIntent.getIntExtra("scale", 0);
    int plugged = batteryInfoIntent.getIntExtra("plugged", 0);
    int voltage = batteryInfoIntent.getIntExtra("voltage", 0);
    int temperature = batteryInfoIntent.getIntExtra("temperature", 0);
    String technology = batteryInfoIntent.getStringExtra("technology");
    return level / (float) scale;
}

From source file:Main.java

public static float getBatteryLevel(Context applicationContext) {
    Intent batteryIntent = applicationContext.registerReceiver(null,
            new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    int level = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
    int scale = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);

    // Error checking that probably isn't needed but I added just in case.
    if (level == -1 || scale == -1) {
        return 50.0f;
    }//w ww  . j av  a  2s.  c  o m
    return ((float) level / (float) scale) * 100.0f;
}

From source file:Main.java

public static Intent registerViolation(Context cxt, BroadcastReceiver receiver, IntentFilter filter) {
    return cxt.registerReceiver(receiver, filter); // lint violation
}

From source file:Main.java

/**
 * Register overall broadcast receiver/*  w  ww .  java 2 s  . co m*/
 *
 * @param receiver Broadcast receiver
 * @param filter   Broadcast filter
 */
public static void registerOverall(Context context, BroadcastReceiver receiver, IntentFilter filter) {
    context.registerReceiver(receiver, filter);
}

From source file:Main.java

public static boolean isPowerConnected(Context context) {
    Intent batteryIntent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));

    int status = batteryIntent.getIntExtra(BatteryManager.EXTRA_STATUS, -1);
    boolean isCharging = ((status == BatteryManager.BATTERY_STATUS_CHARGING)
            || (status == BatteryManager.BATTERY_STATUS_FULL));

    return isCharging;
}

From source file:Main.java

public static float getBatteryLevel(Context context) {
    Intent batteryIntent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    int level = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
    int scale = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);

    // Error checking that probably isn't needed, just in case.
    if (level == -1 || scale == -1) {
        return 0.50f;
    }//  ww w .  j  a va  2s.co m

    return ((float) level / (float) scale);
}