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▪变换东一到东八相差八小时时间 转换东一到东八相差八小时时间
+(NSDate *)convertDateToLocalTime:(NSDate *)forDate { NSTimeZone *nowTimeZone = [NSTimeZone localTimeZone]; int timeOffset = [nowTimeZone secondsFromGMTForDate:forDate]; NSDate *n.........
▪ Sensor地心引力demo Sensor重力demo
import java.util.List;
import android.app.Activity;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundl.........
▪ GC调优稿件 GC调优文章
官方:http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.htmlGC学习笔记http://blog.csdn.net/fenglibing/article/details/6321453Thread Dump分析 http://blog.csdn.net/wanyanxgf/article/details/6944987通过.........
[1]变换东一到东八相差八小时时间
来源: 互联网 发布时间: 2014-02-18
转换东一到东八相差八小时时间
+(NSDate *)convertDateToLocalTime:(NSDate *)forDate {
NSTimeZone *nowTimeZone = [NSTimeZone localTimeZone];
int timeOffset = [nowTimeZone secondsFromGMTForDate:forDate];
NSDate *newDate = [forDate dateByAddingTimeInterval:timeOffset];
return newDate;
}
+(NSDate *)convertDateToLocalTime:(NSDate *)forDate {
NSTimeZone *nowTimeZone = [NSTimeZone localTimeZone];
int timeOffset = [nowTimeZone secondsFromGMTForDate:forDate];
NSDate *newDate = [forDate dateByAddingTimeInterval:timeOffset];
return newDate;
}
[2] Sensor地心引力demo
来源: 互联网 发布时间: 2014-02-18
Sensor重力demo
import java.util.List; import android.app.Activity; import android.hardware.Sensor; import android.hardware.SensorEvent; import android.hardware.SensorEventListener; import android.hardware.SensorManager; import android.os.Bundle; import android.util.Log; import android.widget.TextView; public class SensorActivity extends Activity implements SensorEventListener { TextView text; private boolean mRegisteredSensor; // 定义SensorManager private SensorManager mSensorManager; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); text = (TextView) findViewById(R.id.textView1); mRegisteredSensor = false; // 取得SensorManager实例 mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); } @Override protected void onResume() { super.onResume(); // 接受SensorManager的一个列表(Listener) // 这里我们指定类型为TYPE_ORIENTATION(方向感应器)或YPE_ACCELEROMETER List<Sensor> sensors = mSensorManager.getSensorList(Sensor.TYPE_ACCELEROMETER); if (sensors.size() > 0) { Sensor sensor = sensors.get(0); // 注册SensorManager // this->接收sensor的实例 // 接收传感器类型的列表 // 接受的频率 mRegisteredSensor = mSensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_NORMAL); } } @Override protected void onPause() { if (mRegisteredSensor) { // 如果调用了registerListener // 这里我们需要unregisterListener来卸载\取消注册 mSensorManager.unregisterListener(this); mRegisteredSensor = false; } super.onPause(); } // 当进准度发生改变时 // sensor->传感器 // accuracy->精准度 @Override public void onAccuracyChanged(Sensor sensor, int accuracy) { } // 当传感器在被改变时触发 @Override public void onSensorChanged(SensorEvent event) { // 接受方向感应器的类型 synchronized (this) { if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER)// ///或 // TYPE_ORIENTATION { // 这里我们可以得到数据,然后根据需要来处理 // 由于模拟器上面无法测试效果,因此我们暂时不处理数据 float x = event.values[SensorManager.DATA_X]; float y = event.values[SensorManager.DATA_Y]; float z = event.values[SensorManager.DATA_Z]; Log.d("TESTSENSOR", x + " " + y + " " + z); text.setText("TESTSENSOR"+x + " " + y + " " + z); } } } }
[3] GC调优稿件
来源: 互联网 发布时间: 2014-02-18
GC调优文章
官方:
http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html
GC学习笔记
http://blog.csdn.net/fenglibing/article/details/6321453
Thread Dump分析
http://blog.csdn.net/wanyanxgf/article/details/6944987
通过GC输出分析内存泄露问题
http://www.iteye.com/topic/256701
jstack和线程dump分析
http://jameswxx.iteye.com/blog/1041173
10 个非常重要的 HotSpot JVM 参数
http://run-wang.iteye.com/blog/1326763
探秘Java7新增垃圾回收器G1特性
http://huangtut.iteye.com/blog/1106416
GC调优总结
http://pengjiaheng.iteye.com/blog/search?page=2&query=jvm
jvm GC优化
http://wangxuliangboy.iteye.com/blog/360798
CMS gc实践总结
http://www.iteye.com/topic/473874#1176751
官方:
http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html
GC学习笔记
http://blog.csdn.net/fenglibing/article/details/6321453
Thread Dump分析
http://blog.csdn.net/wanyanxgf/article/details/6944987
通过GC输出分析内存泄露问题
http://www.iteye.com/topic/256701
jstack和线程dump分析
http://jameswxx.iteye.com/blog/1041173
10 个非常重要的 HotSpot JVM 参数
http://run-wang.iteye.com/blog/1326763
探秘Java7新增垃圾回收器G1特性
http://huangtut.iteye.com/blog/1106416
GC调优总结
http://pengjiaheng.iteye.com/blog/search?page=2&query=jvm
jvm GC优化
http://wangxuliangboy.iteye.com/blog/360798
CMS gc实践总结
http://www.iteye.com/topic/473874#1176751
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