Android 如何创建按钮来控制背景声音。
我正在尝试将背景音乐添加到我的应用程序中。我所需要的只是按下Android 如何创建按钮来控制背景声音。,android,android-mediaplayer,android-button,Android,Android Mediaplayer,Android Button,我正在尝试将背景音乐添加到我的应用程序中。我所需要的只是按下btnoptn按钮时播放声音,其文本转换为“音乐关闭”。音乐应在任何活动中继续播放,直到返回到设置页面并再次按下相同的按钮。然后音乐停止,按钮文本变为“音乐开启” 到目前为止,这是我的代码: package hello.english; import hello.english.R; import android.app.Activity; import android.content.Intent; import android.v
btnoptn
按钮时播放声音,其文本转换为“音乐关闭”。音乐应在任何活动
中继续播放,直到返回到设置页面并再次按下相同的按钮
。然后音乐停止,按钮
文本变为“音乐开启”
到目前为止,这是我的代码:
package hello.english;
import hello.english.R;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.media.MediaPlayer;
import android.os.Bundle;
public class welcome extends Activity implements OnClickListener{
private Button btnoptn;
private Button btnmenu;
public static MediaPlayer mp2;
private void btnoptn(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final Button testButton = (Button) findViewById(R.id.btnoptn);
testButton.setTag(1);
testButton.setText("Musik Of");
mp2=MediaPlayer.create(this, R.raw.guitar_music);
mp2.start();
mp2.setLooping(true);
testButton.setOnClickListener( new View.OnClickListener() {
public void onClick (View v) {
final int status =(Integer) v.getTag();
if(status == 1) {
mp2.start();
mp2.setLooping(true);
testButton.setText("Musik Of");
v.setTag(0); //pause
} else {
mp2.pause();
testButton.setText("Musik On");
v.setTag(1);
} //pause
}
});
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.welcome);
btnoptn=(Button)findViewById(R.id.btnoptn);
btnmenu=(Button)findViewById(R.id.btnmenu);
btnoptn.setOnClickListener( new View.OnClickListener() {
public void onClick(View view) {
btnoptn(null);
}
});
btnmenu.setOnClickListener( new View.OnClickListener() {
public void onClick(View view2) {
btnmenu();
}
});
}
protected void btnmenu() {
try {
Intent btnmenu= new Intent (this, menuenglish.class);
startActivity(btnmenu);
} catch (Exception e) {
e.printStackTrace();
}
}
public void onStart() {
super.onStart();
btnoptn.setTag(0);
}
public void onClick(View view2) {
// TODO Auto-generated method stub
}
}
这是一个非常简单的例子。我不知道如果你在不同的活动之间切换它是如何工作的,我从来没有真正使用过MediaPlayer类
public class MainActivity extends Activity
{
private MediaPlayer mediaPlayer;
private Button musicButton;
private OnClickListener listener = new OnClickListener()
{
// a boolean value in the names Onclicklistener class.
// this will help us to know, if the music is playing or not.
boolean isPlaying = false;
@Override
public void onClick(View arg0)
{
if(isPlaying)
{
mediaPlayer.pause(); //stop the music
musicButton.setText("Start"); //change the buttons text
}
else
{
mediaPlayer.start(); //start the music
musicButton.setText("Stop"); //change the text
}
//changing the boolean value
isPlaying = !isPlaying;
}
};
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//Creating the mediaplayer with a desired soundtrack.
mediaPlayer = MediaPlayer.create(this, R.raw.my_music);
//Getting the Button reference from the xml
musicButton = (Button) findViewById(R.id.music_button);
//Setting the listener
musicButton.setOnClickListener(listener);
}
}
巴里182:谢谢你试着给出答案,真的很感激:)你很好!这就是你要找的吗?还是我完全误解了你?不知道,这让我头痛,每次我试着总是迫不及待地接近我遇到的那个人