單擊主頁按鈕並重新啓動應用程序時,它將從第一個屏幕開始,而不是停留在我離開的屏幕上。未在Android中運行的活動
感謝您的幫助。
public class WelcomeScreen extends Activity implements OnClickListener {
/** Called when the activity is first created. */
private Button signUp,login;
private RelativeLayout relative;
GlobalVariable global;
@Override
public void onCreate(Bundle savedInstanceState)
{
requestWindowFeature(Window.FEATURE_NO_TITLE);
requestWindowFeature(Window.FEATURE_PROGRESS);
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
global=(GlobalVariable)getApplicationContext();
signUp=(Button)findViewById(R.id.signUp);
login=(Button)findViewById(R.id.login);
relative=(RelativeLayout)findViewById(R.id.welcome_panel);
signUp.setOnClickListener(WelcomeScreen.this);
login.setOnClickListener(WelcomeScreen.this);
}
@Override
public void onResume()
{
super.onResume();
Toast.makeText(WelcomeScreen.this, " onResume called", Toast.LENGTH_SHORT).show();
}
@Override
public void onPause()
{
super.onPause();
Toast.makeText(WelcomeScreen.this, " onPause called", Toast.LENGTH_SHORT).show();
}
/*
* Button Onclick event for signup and login button
*
*/
public void onClick(View v)
{
if(v==signUp)
{
Intent signupPanel=new Intent(WelcomeScreen.this,SignupPanel.class);
startActivity(signupPanel);
callNull();
}
else if(v==login)
{
//start a login screen
Intent loginPanel=new Intent(WelcomeScreen.this,LoginPanel.class);
startActivity(loginPanel);
callNull();
}
}
public void callNull()
{
this.finish();
}
@Override
public void onDestroy()
{
super.onDestroy();
Toast.makeText(WelcomeScreen.this, " on destroy called", Toast.LENGTH_SHORT).show();
System.gc();
relative.setBackgroundDrawable(null);
login.setBackgroundDrawable(null);
signUp.setBackgroundDrawable(null);
}
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0)
{
// android.os.Process.killProcess(android.os.Process.myPid());
return true;
}
return super.onKeyDown(keyCode,event);
}
}
你能告訴我們你在你的onStop /的onDestroy /的onPause方法和/或使用的onkeydown的代碼? – WarrenFaith 2011-05-27 10:28:09
我編輯了答案。 – Kakey 2011-05-27 10:40:15
只是爲了確保我的理解正確:如果您按主頁鍵,主屏幕不會出現,但您的應用程序的第一個屏幕呢? – WarrenFaith 2011-05-27 11:00:25