S/W Engineering Power

2014년 7월 4일 금요일

Android PreferenceActivity

설정 화면을 위한 액티비티

SettingsActivity.java

package com.example.preference;

import android.content.Context;

import android.os.Bundle;

import android.preference.PreferenceActivity;

import com.example.test.R;

public class SettingsActivity extends PreferenceActivity {

private static final String TAG = "SettingsActivity";

private Context mContext = null;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

mContext = this;

addPreferencesFromResource(R.xml.preference_settings);

}

preference_settings.xml

<EditTextPreference

android:dialogTitle="edittext"

android:key="edittext_key"

android:summary="edittext_summary"

android:title="edittext_title" />

</PreferenceCategory>

</PreferenceScreen>

2014년 6월 30일 월요일

Android Slide Menu (Animation)

Android Slide Menu (Animation)

View를 추가하여 애니메이션을 통해 Slide Menu를 구현한다.

SlideMenuActivity.java

package com.example.slidemneu;

import android.app.Activity;

import android.content.Context;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup.LayoutParams;

import android.view.animation.Animation;

import android.view.animation.Animation.AnimationListener;

import android.view.animation.AnimationUtils;

import android.widget.Button;

import com.example.test.R;

public class SlideMenuActivity extends Activity implements AnimationListener {

private Animation mAnimation;

private View mSlideMenu;

private boolean menuOut = false;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_slide_menu);

Button btSlideUp = (Button) findViewById(R.id.bt_slide_up);

btSlideUp.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

mAnimation = AnimationUtils.loadAnimation(

SlideMenuActivity.this, R.anim.push_left_in);

mAnimation.setAnimationListener(SlideMenuActivity.this);

mSlideMenu.startAnimation(mAnimation);

}

});

Button btSlideOut = (Button) findViewById(R.id.bt_slide_down);

btSlideOut.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

mAnimation = AnimationUtils.loadAnimation(

SlideMenuActivity.this, R.anim.push_right_out);

mAnimation.setAnimationListener(SlideMenuActivity.this);

mSlideMenu.startAnimation(mAnimation);

}

});

LayoutInflater inflater = (LayoutInflater) this

.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

mSlideMenu = inflater.inflate(R.layout.slide_menu, null);

mSlideMenu.setVisibility(View.INVISIBLE);

addContentView(mSlideMenu, new LayoutParams(LayoutParams.MATCH_PARENT,

LayoutParams.MATCH_PARENT));

}

@Override

public void onAnimationStart(Animation animation) {

// TODO Auto-generated method stub

}

@Override

public void onAnimationEnd(Animation animation) {

// TODO Auto-generated method stub

menuOut = !menuOut;

if (!menuOut) {

mSlideMenu.setVisibility(View.INVISIBLE);

} else {

mSlideMenu.setVisibility(View.VISIBLE);

}

@Override

public void onAnimationRepeat(Animation animation) {

// TODO Auto-generated method stub

}

push_left_in.xml

<?xml version="1.0" encoding="utf-8"?>

<translate

android:duration="1000"

android:fromXDelta="100%p"

android:interpolator="@android:anim/accelerate_decelerate_interpolator"

android:toXDelta="0" />

</set>

push_right_out.xml

<?xml version="1.0" encoding="utf-8"?>

<translate

android:duration="1000"

android:fromXDelta="0"

android:interpolator="@android:anim/accelerate_decelerate_interpolator"

android:toXDelta="100%p" />

</set>

activity_slide_menu.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:weightSum="640" >

<LinearLayout

android:layout_width="match_parent"

android:layout_height="0dp"

android:layout_weight="48"

android:orientation="horizontal"

android:weightSum="360" >

<Button

android:id="@+id/bt_slide_up"

android:layout_width="0dp"

android:layout_height="match_parent"

android:layout_weight="180"

android:text="menu slide up" />

<Button

android:id="@+id/bt_slide_down"

android:layout_width="0dp"

android:layout_height="match_parent"

android:layout_weight="180"

android:text="menu slide out" />

</LinearLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="0dp"

android:layout_weight="592"

android:orientation="vertical" >

</LinearLayout>

slide_menu.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

xmlns:svgimageview="http://schemas.android.com/apk/res-auto"

android:id="@+id/slide_menu_layer"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:gravity="bottom"

android:weightSum="640" >

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_weight="592"

android:orientation="vertical" >

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="menu1" />

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="menu2" />

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="menu3" />

</LinearLayout>

jogging

내 시간: 11:59.92

Android Path Effect (Dash)

DashPathEffect

Paint paint = new Paint();

paint.setColor(Color.RED);

paint.setStyle(Style.STROKE);

paint.setStrokeWidth(3.0F);

paint.setPathEffect(new DashPathEffect(new float[] { 10, 10 }, 0 ));

Bearing Calculation Tip

2차원 평면그래프는
X축이 우측으로 갈수록 + 좌측으로 갈수록 -이고
Y축은 위로 갈수록 +, 아래로 갈수록 -이다

하지만 픽셀 좌표에서는
left는 2차원 평면 그래프와 같지만,
top은 반대로 위로 갈수록 마이너스 아래로 갈수록 +이다.

atan을 이용한 bearing 구하기

getBearing

private double getBearing(float curX, float curY, float tarX, float tarY) {

double degree = 0;

double radians = 0;

double width = tarX-curX;

double height = -(tarY-curY);

if(height == 0) {

height = 1;

}

try {

radians = Math.atan(width / height);

degree = Math.toDegrees(radians);

degree = (degree + 360) % 360;

} catch(Exception e) {

;

}

return (double) degree;

}

Android Thread Pause Technic

Android Life Cycle의 onResume(), onStop()을 통해 flag를 설정하여 thread의 시작과 정지를 설정한다.

ThreadPauseActivity

package com.example.threadtest;

import android.app.Activity;

import android.os.Bundle;

import android.os.SystemClock;

import com.example.test.R;

public class ThreadPauseActivity extends Activity {

private boolean bPressPause = false;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_threadtest);

mThread.start();

}

Thread mThread = new Thread() {

@Override

public void run() {

// TODO Auto-generated method stub

while (true) {

if (!bPressPause) {

SystemClock.sleep(1000);

}

};

@Override

protected void onResume() {

// TODO Auto-generated method stub

super.onResume();

bPressPause = true;

}

@Override

protected void onStop() {

// TODO Auto-generated method stub

super.onStop();

bPressPause = false;

}