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Start Activity;Stop Activity and Suspend Activity are used to play music, stop music and pause playback, respectively.

Package mth.android

Import android.app.Activity

Import android.media.MediaPlayer

Import android.os.Bundle

Import android.view.View

Import android.widget.Button

Import android.widget.TextView

Public class AndroidActivity extends Activity implements View.OnClickListener {

/ / Define a media player

Private MediaPlayer mediaPlayer = null

Private int curPos = 0

/ * Called when the activity is first created. , /

@ Override

Public void onCreate (Bundle savedInstanceState) {

Super.onCreate (savedInstanceState)

SetContentView (R.layout.main)

/ / final View textDisplayer = this.findViewById (R.id.displayText)

/ / final TextView textDisplayer = (TextView) this.findViewById (R.id.displayText)

Button startActivityButton = (Button) this.findViewById (R.id.startAndroidActivity)

StartActivityButton.setOnClickListener (this)

Button stopActivityButton = (Button) this.findViewById (R.id.stopAndroidActivity)

StopActivityButton.setOnClickListener (this)

Button suspendActivityButton = (Button) this.findViewById (R.id.suspendAndroidActivity)

SuspendActivityButton.setOnClickListener (this)

/ *

Button startActivityButton = (Button) this.findViewById (R.id.startAndroidActivity)

StartActivityButton.setOnClickListener (new OnClickListener () {

Public void onClick (View v) {

/ / TODO Auto-generated method stub

Display (textDisplayer)

}

});

, /

/ *

View startActivityButton = this.findViewById (R.id.startAndroidActivity)

StartActivityButton.setOnClickListener (new View.OnClickListener () {

Public void onClick (View v) {

/ / TODO Auto-generated method stub

TextDisplayer.setText ("Hello World")

TextDisplayer.setBackgroundColor (0xFFFFFFFF)

}

}

);

, /

/ *

TextView text = new TextView (this)

Text.setText ("Hello World")

SetContentView (text)

, /

}

Public void display (TextView tv)

{

Tv.setText ("Hello world")

Tv.setBackgroundColor (0xFFFFFF00)

}

Public void onClick (View v) {

/ / int curPos = 0

Switch (v.getId ())

{

Case R.id.startAndroidActivity:

/ / TODO Auto-generated method stub

Final TextView textDisplayer = (TextView) this.findViewById (R.id.displayText)

TextDisplayer.setText ("Hello world")

TextDisplayer.setBackgroundColor (BIND_AUTO_CREATE)

/ / Start media player

MediaPlayer = MediaPlayer.create (this, R.raw.just_one_last_dance)

MediaPlayer.seekTo (0)

MediaPlayer.start ()

Break

Case R.id.stopAndroidActivity:

MediaPlayer.stop ()

Break

Case R.id.suspendAndroidActivity:

If (true = = mediaPlayer.isPlaying ())

{

CurPos = mediaPlayer.getCurrentPosition ()

MediaPlayer.pause ()

}

Else

{

MediaPlayer.seekTo (curPos)

MediaPlayer.start ()

}

Break

Default:

Break

}

}

}

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