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我的主页上有三个按钮。当我尝试点击它们时会发生奇怪的事情。例如,当我点击NewGame按钮时,它会首先显示分数按钮应该显示的内容,然后如果我单击后退按钮,它将继续显示其意图的活动。随着关于按钮,我必须单击后退两次(它显示newGame活动和成绩的活动。有一个原因,这是怎么回事?Android按钮打开错误的活动
public class Sakurame extends Activity implements OnClickListener {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
//set up click listeners for buttons
View HighScoreButton = findViewById(R.id.highscore_button);
HighScoreButton.setOnClickListener(this);
View newButton = findViewById(R.id.new_button);
newButton.setOnClickListener(this);
View aboutButton = findViewById(R.id.about_button);
aboutButton.setOnClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu){
super.onCreateOptionsMenu(menu);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item){
switch (item.getItemId()){
case R.id.settings:
startActivity(new Intent(this, Prefs.class));
return true;
// More items go here (if any)
}
return false;
}
public void onClick(View v){
switch(v.getId()){
case R.id.about_button:
Intent i = new Intent(this, About.class);
startActivity(i);
case R.id.new_button:
Intent i2 = new Intent(this, HighScore.class);
startActivity(i2);
case R.id.highscore_button:
Intent i3 = new Intent(this, DisplayScores.class);
startActivity(i3);
//break;
// more buttons go here (if any)
}
}
我想补充说明:Case语句卡斯卡德。因此,如果您在每个案例陈述后不添加中断,则后续的每个案例陈述都会运行... – 2011-05-11 23:56:40
是的,对不起,我应该更清楚一点。 – keyboardP 2011-05-11 23:57:37
谢谢 - 它解决了一切。我没有意识到他们级联@。@ – 2011-05-12 00:28:02