A countdown effect similar to a movie in Android

A countdown effect similar to a movie in Android

 

1. Activity

Import java. util. Timer;

Import java. util. TimerTask;

Import android. annotation. SuppressLint;

Import android. app. Activity;

Import android. OS. Bundle;

Import android. OS. Handler;

Import android. OS. Message;

Import android. view. View;

Import android. view. View. OnClickListener;

Import android. view. animation. Animation;

Import android. view. animation. RotateAnimation;

Import android. widget. Button;

Import android. widget. ImageView;

Import android. widget. TextView;

Public class Test extends Activity {

Private long mlCount = 50;

Private long mCount = 0;

TextView tvTime;

Private Button startbuttondaoji;

Private Timer timer = null;

Private TimerTask task = null;

Private Handler handler = null;

Private Message msg = null;

Private ImageView min_progress, min_progress_hand;

Animation rotateAnimation;

Float predegree = 0;

Boolean okclear = false;

@ SuppressLint ("HandlerLeak ")

@ Override

Public void onCreate (Bundle savedInstanceState ){

Super. onCreate (savedInstanceState );

Init ();

}

Private void init (){

SetContentView (R. layout. test );

TvTime = (TextView) findViewById (R. id. duocitvTime );

Startbuttondaoji = (Button) findViewById (R. id. startbuttonduoci );

Min_progress = (ImageView) this. findViewById (R. id. duocimin_progress );

Min_progress_hand = (ImageView) this

. FindViewById (R. id. duocimin_progress_hand );

TvTime. setText ("4 ");

SaveRun. setisjishi (false );

Handler = new Handler (){

@ Override

Public void handleMessage (Message msg ){

Switch (msg. what ){

Case 1:

If (mlCount> 1 ){

MlCount --;

MCount ++;

} Else {

Break;

}

Int totalSec = 0;

TotalSec = (int) (mlCount/10 );

Int sec = (totalSec % 60 );

Try {

RotateAnimation = new RotateAnimation (predegree,

(Float) (36 * mCount ),

Animation. RELATIVE_TO_SELF, 0.5f,

Animation. RELATIVE_TO_SELF, 0.5f );

RotateAnimation. setDuration (100 );

RotateAnimation. setFillAfter (false );

Min_progress_hand.startAnimation (rotateAnimation );

Min_progress.startAnimation (rotateAnimation );

TvTime. setText (String. format ("% 1 $ 2d ",

Sec ));

Predegree = (float) (36 * mCount );

} Catch (Exception e ){

TvTime. setText (sec + "");

E. printStackTrace ();

}

Break;

Default:

Break;

}

Super. handleMessage (msg );

}

};

}

@ Override

Protected void onStart (){

Star ();

Super. onStart ();

}

Private void star (){

Startbuttondaoji. setOnClickListener (new OnClickListener (){

@ Override

Public void onClick (View arg0 ){

Startbuttondaoji. setVisibility (View. GONE );

If (null = timer ){

If (null = task ){

SaveRun. setisjishi (true );

Okclear = false;

Min_progress.setVisibility (View. VISIBLE );

Task = new TimerTask (){

@ Override

Public void run (){

If (null = msg ){

Msg = new Message ();

} Else {

Msg = Message. obtain ();

}

Msg. what = 1;

Handler. sendMessage (msg );

}

};

}

Timer = new Timer (true );

Timer. schedule (tasks, 100,100 );

}

}

});

}

View. OnClickListener startPauseListener = new View. OnClickListener (){

@ Override

Public void onClick (View v ){

If (null = timer ){

If (null = task ){

SaveRun. setisjishi (true );

Okclear = false;

Min_progress.setVisibility (View. VISIBLE );

Task = new TimerTask (){

@ Override

Public void run (){

If (null = msg ){

Msg = new Message ();

} Else {

Msg = Message. obtain ();

}

Msg. what = 1;

Handler. sendMessage (msg );

}

};

}

Timer = new Timer (true );

Timer. schedule (tasks, 100,100 );

} Else {

Try {

SaveRun. setisjishi (false );

Okclear = true;

Task. cancel ();

Task = null;

Timer. cancel ();

Timer. purge ();

Timer = null;

Handler. removeMessages (msg. what );

} Catch (Exception e ){

E. printStackTrace ();

}

}

}

};

}

2. layout files

<RelativeLayout 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: background = "@ android: color/background_dark "> <RelativeLayout android: layout_width =" match_parent "android: layout_height =" match_parent "android: layout_above =" @ + id/buttonlinear "> <ImageView android: id = "@ + id/duocimin_dial" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_centerInParent = "true" android: src = "@ drawable/iv_bg"/> <ImageView android: id = "@ + id/duocimin_progress" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_centerInParent = "true" android: src = "@ drawable/min_progress" android: visibility = "invisible"/> <ImageView android: id = "@ + id/duocimin_progress_hand" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_centerInParent = "true" android: src = "@ drawable/min_progress_hand"/> <TextView android: id = "@ + id/duocitvTime" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_centerInParent = "true" android: text = "00:00. 0 "android: textSize =" 35sp "android: textStyle =" bold "/> <LinearLayout android: id =" @ + id/duocihoursoflinear "android: layout_width =" wrap_content "android: layout_height = "wrap_content" android: layout_above = "@ + id/duocitvTime" android: layout_centerHorizontal = "true" android: gravity = "center" android: orientation = "horizontal" android: visibility = "invisible"> </LinearLayout> <LinearLayout android: layout_width = "match_parent" android: layout_height = "wrap_content" android: Layout = "@ + id/duocimin_dial" android: gravity = "center_horizontal" android: orientation = "horizontal"> <RelativeLayout android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_marginRight = "100sp"> </RelativeLayout> <RelativeLayout android: layout_width = "wrap_content" android: layout_height = "wrap_content"> </RelativeLayout> </LinearLayout> </RelativeLayout> <RelativeLayout android: id = "@ + id/buttonlinear" android: layout_width = "external" android: layout_height = "74sp" android: layout_alignParentBottom = "true" android: background = "@ drawable/v5_bottom_bar_bg_light"> <Button android: id = "@ + id/startbuttonduoci" android: layout_width = "match_parent" android: layout_height = "wrap_content" android: layout_centerInParent = "true" android: layout_marginLeft = "10sp" android: layout_marginRight = "10sp" android: background = "@ drawable/startback" android: text = "" "/> </RelativeLayout>