Temperature JNI&JAVA;

/* *--------by Jay for temperature observer-----study android framework */ package com.android.server; import android.app.ActivityManagerNative; import android.content.Context; import android.content.Intent; import android.os.Handler; import android.os.Message; import android.os.PowerManager; import android.os.PowerManager.WakeLock; import android.os.UEventObserver; import android.util.Slog; //import android.media.AudioManager; import java.io.FileReader; import java.io.FileNotFoundException; class TemperatureObserver extends UEventObserver { private static final String TAG = TemperatureObserver.class.getSimpleName(); private static final boolean LOG = true; private static final String TEMPERATURE_UEVENT_MATCH = "DEVPATH=/devices/platform/android-temperature"; private static final String TEMPERATURE_VALUE_PATH = "/sys/bus/iio/devices/device0/value"; private static final String TEMPERATURE_NAME_PATH = "/sys/bus/iio/devices/device0/name"; private int mTemperatureValue; private int mPreTemperatureValue; private String mTemperatureName; private final Context mContext; private final WakeLock mWakeLock; public TemperatureObserver(Context context) { mContext = context; PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE); mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "TemperatureObserver"); mWakeLock.setReferenceCounted(false); //++++add log Slog.v(TAG,"------Struct function...."); // startObserving("EVENT=temperature"); startObserving(TEMPERATURE_UEVENT_MATCH); // init(); // set initial status } @Override public void onUEvent(UEventObserver.UEvent event) { if (LOG) Slog.v(TAG, "Temperature UEVENT: " + event.toString()); try { update(event.get("NAME"), Integer.parseInt(event.get("TEMPERATURE"))); } catch (NumberFormatException e) { Slog.e(TAG, "Could not parse switch state from event " + event); } } private native void native_temperature_update(); private synchronized final void update(String newName, int newValue){ if(LOG) Slog.v(TAG,"NAME: "+newName+" VALUE: "+newValue); native_temperature_update(); Slog.v(TAG,"-----value-----"+mTemperatureValue); } }