code for Android App Permissions
http://geekonjava.blogspot.in/search/label/android%20projects
'
Test GPS location with Android Studio
This article shows you how to set the GPS location in your Android Studio.
1. Menu ->Tools -> Android ->Monitor (DDMS included)
2. Input the Longitude and Latitude in Location Control
Android game development : Moving or scrolling background
In game development in android, before we go further let have a look what we had achieved
1) Basic science of game programming
2) Creating surface to draw
3) Creating dynamic object on surface and moving them
But in general , every game does not move their character much . They
moves their background. But when a person plays, its seems everything is
moving around. In android we draw an background with one bitmap. And
we start slowly moving background. This is important part game
development.
Suppose one's want to develop a game in which, one's have one actor
who's running all the way. Then real game scenerio will be like that
- Animate actor on same place
- Move the background in opposite direction
Moving background is quite simple, we scroll one image to some position and same image's another instance to respective direction to cover the space left by first one. and so on.......
This process need same image to draw continueously two times to fill the gap and never ending scrolling or moving of background
Look at the respective code in which backGround bitmap is background of canvas.....
/** * Draws current state of the game Canvas. */ private int mBGFarMoveX = 0; private int mBGNearMoveX = 0; private void doDrawRunning(Canvas canvas) { // decrement the far background mBGFarMoveX = mBGFarMoveX - 1; // decrement the near background mBGNearMoveX = mBGNearMoveX - 4; // calculate the wrap factor for matching image draw int newFarX = backGround.getWidth() - (-mBGFarMoveX); // if we have scrolled all the way, reset to start if (newFarX <= 0) { mBGFarMoveX = 0; // only need one draw canvas.drawBitmap(backGround, mBGFarMoveX, 0, null); } else { // need to draw original and wrap canvas.drawBitmap(backGround, mBGFarMoveX, 0, null); canvas.drawBitmap(backGround, newFarX, 0, null); } }
I. How to create simple surface
II. How draw some object
III. How to implement Touch event on View
IV.Drawing shape on touch dynamically
Start with basic step create one project Creating Surface.
Step 2). create another class called OnsurfaceToDraw.java
in this class , we create rectangle and circle and line. read little bit about Paint , View , Touch event
package com.ahmad;
import java.util.ArrayList;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.os.SystemClock;
import android.view.MotionEvent;
import android.view.View;
public class OurSurfaceTodraw extends View {
private Context context;
public OurSurfaceTodraw(Context context) {
super(context);
this.context = context;
setWillNotDraw(false);
setFocusableInTouchMode(true);
}
long timedelay = SystemClock.currentThreadTimeMillis();
@Override
protected void onDraw(Canvas canvas) {
// Setting canvas background
setBackgroundColor(Color.WHITE);
Paint paint = new Paint();
paint.setColor(Color.RED);
// Drawing Line on canvas
canvas.drawLine(50, 200, 0, 10, paint);
if ((SystemClock.currentThreadTimeMillis() + 3) > timedelay) {
paint.setColor(Color.BLACK);
canvas.drawRect(100, 100, 140, 140, paint);
}
// Drawing Rectangle or square
if ((SystemClock.currentThreadTimeMillis() + 6) > timedelay) {
paint.setColor(Color.BLACK);
canvas.drawRect(100, 100, 140, 140, paint);
}
// Drawing Rectangle or square
if ((SystemClock.currentThreadTimeMillis() + 6) > timedelay) {
paint.setColor(Color.BLACK);
canvas.drawCircle(100, 250, 20, paint);
}
if (mDynamic.isEmpty()) {
} else {
paint.setColor(Color.RED);
for (int i = 0; i < mDynamic.size(); i++) {
canvas.drawRect(mDynamic.get(i), paint);
}
}
super.onDraw(canvas);
}
private ArrayList<Rect> mDynamic = new ArrayList<Rect>();
@Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
int x = Math.round(event.getX());
int y = Math.round(event.getY());
Rect rect = new Rect(x, y, x + 30, y + 20);
mDynamic.add(rect);
invalidate();
return super.onTouchEvent(event);
}
}
Notable Line in above code are
Drawing a circle,Rectangle and Line
canvas.drawCircle(100, 250, 20, paint);canvas.drawRect(100, 100, 140, 140, paint);
canvas.drawLine(50, 200, 0, 10, paint);
If we want to draw Rectangle dynamically then store all rectangle into one ArrayList and then draw by getting each element.
invalidate(); This will ensure that while you change something on touch it will draw to canvas Video will show how this out put will work
You can download complete source from below given link
Download Source Code
http://androidtrainningcenter.blogspot.in/2013/03/video-chat-api-in-android-provide-group.html
RUN TEMPLE code
package com.thelikes.thegot2run;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.view.Menu;
import android.view.View;
import android.widget.TextView;
public class MainActivity extends Activity {
protected
void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public
void play(View v)
{
Intent
i=new Intent(this,Game.class);
startActivity(i);
}
public
void highscore(View v)
{
Intent
i=new Intent(this,Highscore.class);
startActivity(i);
}
public
void setting(View v)
{
Intent
i=new Intent(this,Setting.class);
startActivity(i);
}
public
void exit(View v)
{
System.exit(0);
}
}
Game.java
package
com.thelikes.thegot2run;
import
android.annotation.SuppressLint;
import
android.app.Activity;
import
android.content.Context;
import
android.content.SharedPreferences;
import
android.content.SharedPreferences.Editor;
import
android.graphics.Bitmap;
import
android.graphics.BitmapFactory;
import
android.graphics.Canvas;
import
android.graphics.Color;
import
android.graphics.Paint;
import
android.graphics.Paint.Align;
import
android.media.MediaPlayer;
import android.os.Bundle;
import
android.telephony.PhoneStateListener;
import
android.telephony.TelephonyManager;
import
android.view.Display;
import android.view.Menu;
import android.view.MenuItem;
import
android.view.MotionEvent;
import
android.view.SurfaceHolder;
import
android.view.SurfaceView;
import android.view.Window;
import
android.view.WindowManager;
public class Game extends Activity {
MediaPlayer mp1,jump,takecoin;
gameloop gameLoopThread;
protected void onCreate(Bundle
savedInstanceState) {
super.onCreate(savedInstanceState);
//phone state
TelephonyManager
TelephonyMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
TelephonyMgr.listen(new
TeleListener(),PhoneStateListener.LISTEN_CALL_STATE);
//for no title
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(new GameView(this));
}
public class GameView extends SurfaceView{
Bitmap bmp,pause;
Bitmap background,kinfe,note1,powerimg,note2;
Bitmap run1;
Bitmap run2;
Bitmap run3;
Bitmap coin;
Bitmap exit;
private SurfaceHolder holder;
private int x = 0,y=0,z=0,delay=0,getx,gety,sound=1;
int show=0,sx,sy;
int cspeed=0,kspeed=0,gameover=0;
int score=0,health=100,reset=0;
int pausecount=0,volume,power=0,powerrun=0,shieldrun=0;
@SuppressWarnings("deprecation")
@SuppressLint("NewApi")
public GameView(Context
context)
{
super(context);
gameLoopThread = new gameloop(this);
holder = getHolder();
holder.addCallback(new
SurfaceHolder.Callback() {
@SuppressWarnings("deprecation")
@Override
public void
surfaceDestroyed(SurfaceHolder holder)
{
//for stoping the game
gameLoopThread.setRunning(false);
gameLoopThread.getThreadGroup().interrupt();
}
@SuppressLint("WrongCall")
@Override
public void
surfaceCreated(SurfaceHolder holder)
{
gameLoopThread.setRunning(true);
gameLoopThread.start();
}
@Override
public void surfaceChanged(SurfaceHolder
holder, int format,int width, int height)
{
}
});
//getting the screen size
Display display =
getWindowManager().getDefaultDisplay();
sx = display.getWidth();
sy = display.getHeight();;
cspeed=sx/2;
kspeed=sx/2;
powerrun=(3*sx/4);
shieldrun=sx/8;
background = BitmapFactory.decodeResource(getResources(),
R.drawable.back);
run1=BitmapFactory.decodeResource(getResources(),
R.drawable.run1);
run2=BitmapFactory.decodeResource(getResources(),
R.drawable.run2);
run3=BitmapFactory.decodeResource(getResources(),
R.drawable.run3);
coin=BitmapFactory.decodeResource(getResources(),
R.drawable.coin);
exit=BitmapFactory.decodeResource(getResources(),
R.drawable.exit);
kinfe=BitmapFactory.decodeResource(getResources(),
R.drawable.kinfe);
note1=BitmapFactory.decodeResource(getResources(),
R.drawable.note1);
pause=BitmapFactory.decodeResource(getResources(),
R.drawable.pause);
powerimg=BitmapFactory.decodeResource(getResources(),
R.drawable.power);
note2=BitmapFactory.decodeResource(getResources(),
R.drawable.note2);
exit=Bitmap.createScaledBitmap(exit, 25,25, true);
pause=Bitmap.createScaledBitmap(pause, 25,25, true);
powerimg=Bitmap.createScaledBitmap(powerimg, 25,25, true);
note2=Bitmap.createScaledBitmap(note2, sx,sy, true);
run1=Bitmap.createScaledBitmap(run1, sx/9,sy/7, true);
run2=Bitmap.createScaledBitmap(run2, sx/9,sy/7, true);
run3=Bitmap.createScaledBitmap(run3, sx/9,sy/7, true);
coin=Bitmap.createScaledBitmap(coin, sx/16,sy/24, true);
background=Bitmap.createScaledBitmap(background, 2*sx,sy, true);
//health dec
note1=Bitmap.createScaledBitmap(note1, sx,sy, true);
mp1=MediaPlayer.create(Game.this,R.raw.game);
jump=MediaPlayer.create(Game.this,R.raw.jump);
takecoin=MediaPlayer.create(Game.this,R.raw.cointake);
}
// on touch method
@Override
public boolean
onTouchEvent(MotionEvent event) {
if(event.getAction()==MotionEvent.ACTION_DOWN)
{
show=1;
getx=(int) event.getX();
gety=(int) event.getY();
//exit
if(getx<25&&gety<25)
{
//high score
SharedPreferences
pref = getApplicationContext().getSharedPreferences("higher", MODE_PRIVATE);
Editor editor = pref.edit();
editor.putInt("score", score);
editor.commit();
System.exit(0);
}
// restart game
if(getx>91&&gety<25)
{
if(health<=0)
{
gameLoopThread.setPause(0);
health=100;
score=0;
}
}
//pause game
if((getx>(sx-25)&&gety<25&&pausecount==0))
{
gameLoopThread.setPause(1);
mp1.stop();
pausecount=1;
}
else if(getx>(sx-25)&&gety<25&&pausecount==1)
{
gameLoopThread.setPause(0);
mp1.start();
pausecount=0;
}
}
return true;
}
@SuppressLint("WrongCall")
@Override
protected void onDraw(Canvas
canvas)
{
//volume
SharedPreferences
pref = getApplicationContext().getSharedPreferences("higher", MODE_PRIVATE);
Editor
editor = pref.edit();
volume=pref.getInt("vloume", 0);
if(volume==0)
{
sound=0;
}
canvas.drawColor(Color.BLACK);
//background moving
z=z-10;
if(z==-sx)
{
z=0;
canvas.drawBitmap(background, z, 0, null);
}
else
{
canvas.drawBitmap(background, z, 0, null);
}
//running player
x+=5;
if(x==20)
{
x=5;
}
if(show==0)
{
if(x%2==0)
{
canvas.drawBitmap(run3, sx/16, 15*sy/18, null);
}
else
{
canvas.drawBitmap(run1, sx/16, 15*sy/18, null);
}
//kinfe hit
if(kspeed==20)
{
kspeed=sx;
health-=25;
canvas.drawBitmap(note1, 0, 0, null);
}
//power take
if(powerrun==30)
{
powerrun=3*sx;
health+=25;
canvas.drawBitmap(note2, 0, 0, null);
}
}
//power
powerrun=powerrun-10;
canvas.drawBitmap(powerimg, powerrun, 15*sy/18, null);
if(powerrun<0)
{
powerrun=3*sx/4;
}
//kinfe
kspeed=kspeed-20;
canvas.drawBitmap(kinfe, kspeed, 15*sy/18, null);
if(kspeed<0)
{
kspeed=sx;
}
// for jump
if(show==1)
{
if(sound==1)
{
jump.start();
}
canvas.drawBitmap(run2, sx/16, 3*sy/4, null);
//score
if(cspeed<=sx/8&&cspeed>=sx/16)
{
if(sound==1)
{
takecoin.start();
}
cspeed=sx/2;
score+=10;
}
// jump-hold
delay+=1;
if(delay==3)
{
show=0;
delay=0;
}
}
//for coins
cspeed=cspeed-5;
if(cspeed==-sx/2)
{
cspeed=sx/2;
canvas.drawBitmap(coin, cspeed, 3*sy/4, null);
}
else
{
canvas.drawBitmap(coin, cspeed, 3*sy/4, null);
}
//score
Paint
paint = new Paint();
paint.setColor(Color.BLUE);
paint.setAntiAlias(true);
paint.setFakeBoldText(true);
paint.setTextSize(15);
paint.setTextAlign(Align.LEFT);
canvas.drawText("Score :"+score, 3*sx/4, 20, paint);
//exit
canvas.drawBitmap(exit, 0, 0, null);
if(sound==1)
{
mp1.start();
mp1.setLooping(true);
}
else
{
mp1.stop();
}
//health
Paint myPaint = new Paint();
myPaint.setColor(Color.RED);
myPaint.setStrokeWidth(10);
myPaint.setAntiAlias(true);
myPaint.setFakeBoldText(true);
canvas.drawText("Health
:"+health, 0, (sy/8)-5, myPaint);
canvas.drawRect(0, sy/8, health, sy/8+10, myPaint);
//game over
if(health<=0)
{
gameover=1;
mp1.stop();
//high score
editor.putInt("score", score);
editor.commit();
canvas.drawText("GAMEOVER
OVER",
sx/2, sy/2, myPaint);
canvas.drawText("YOUR SCORE :
"+score, sx/2, sy/4, myPaint);
canvas.drawText("Restart", 91, 25, myPaint);
gameLoopThread.setPause(1);
canvas.drawBitmap(background, sx, sy, null);
}
// restart
if(reset==1)
{
gameLoopThread.setPause(0);
health=100;
score=0;
}
canvas.drawBitmap(pause, (sx-25), 0, null);
}
}
//phone state
public class TeleListener extends PhoneStateListener
{
public void onCallStateChanged(int state,String
incomingNumber)
{
if(state==TelephonyManager.CALL_STATE_RINGING)
{
mp1.stop();
System.exit(0);
}
}
}
}
RUN TEMPLE code
Android make activity as Fullscreen (Removing Title Bar or Action Bar)
http://developer.android.com/guide/topics/ui/actionbar.html
................
If want to make an activity to fullscreen in some cases like playing video in fullscreen mode, playing game etc., you can do that by following one of the methods.
Method 1
One way is using Theme.Holo.Light.NoActionBar.Fullscreen value in AndroidManifest.xml file. (Use the appropriate theme name whichever you used in your application)
<activity android:name=".MainActivity" android:label="@string/app_name" android:theme="@android:style/Theme.Holo.Light.NoActionBar.Fullscreen"></activity> |
Method 2
Another way is, do this through code in the activity. In your activity do the following before calling setContentView() function
requestWindowFeature(Window.FEATURE_NO_TITLE);getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.activity_main);Android Reading Inbox SMS
import android.app.Activity; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.widget.TextView; public class SMSRead extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TextView view = new TextView(this); Uri uriSMSURI = Uri.parse("content://sms/inbox"); Cursor cur = getContentResolver().query(uriSMSURI, null, null, null,null); String sms = ""; while (cur.moveToNext()) { sms += "From :" + cur.getString(2) + " : " + cur.getString(11)+"\n"; } view.setText(sms); setContentView(view); } }
Add below permission to AndroidManifest.xml
<uses-permission name="android.permission.READ_SMS" />
..................................
Blocking Incoming call - Android
Step 1:
Create Broadcast receiver class for incoming call
Step 2:
Create IDL interface for getting core Telephony service
package name must be com.android.internal.telephony
FileName : ITelephony.aidl
Step 3:
AndroidManifest.xml configuration
Create TemperatureWidget class and register with Temperature sensor intend
Download Source
Create Broadcast receiver class for incoming call
package com.javaorigin.android.sample; import java.lang.reflect.Method; import com.android.internal.telephony.ITelephony; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent import android.telephony.TelephonyManager; import android.util.Log; public class PhoneCallReceiver extends BroadcastReceiver { Context context = null; private static final String TAG = "Phone call"; private ITelephony telephonyService; @Override public void onReceive(Context context, Intent intent) { Log.v(TAG, "Receving...."); TelephonyManager telephony = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); try { Class c = Class.forName(telephony.getClass().getName()); Method m = c.getDeclaredMethod("getITelephony"); m.setAccessible(true); telephonyService = (ITelephony) m.invoke(telephony); //telephonyService.silenceRinger(); telephonyService.endCall(); } catch (Exception e) { e.printStackTrace(); } } }
Step 2:
Create IDL interface for getting core Telephony service
package name must be com.android.internal.telephony
FileName : ITelephony.aidl
package com.android.internal.telephony; interface ITelephony { boolean endCall(); void answerRingingCall(); void silenceRinger(); }
Step 3:
AndroidManifest.xml configuration
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.javaorigin.android.sample" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <receiver android:name=".PhoneCallReceiver"> <intent-filter android:priority="100" > <action android:name="android.intent.action.PHONE_STATE" /> </intent-filter> </receiver> </application> <uses-sdk android:minSdkVersion="5" /> <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" /> <uses-permission android:name="android.permission.CALL_PHONE" /> <uses-permission android:name="android.permission.READ_PHONE_STATE" /> <uses-sdk android:minSdkVersion="8" /> </manifest>
...............................................
Android Home And Lock Screen Widget - (Temperature Widget)
Download Source
Android Device/Battery Temperature Sensor Sample
Download Source
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