最终答案已编辑
ActivitA 重要
import java.util.Calendar;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
public class ActivityA extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getIntent().getBooleanExtra("EXIT", false)) {
startActivity(new Intent(ActivityA.this,ActivityE.class));
finish();
}
setContentView(R.layout.alayout);
Button play;
play = (Button) findViewById(R.id.aId);
play.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(ActivityA.this,ActivityB.class));
}
});
}
}
活动B
import java.util.Calendar;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
public class ActivityB extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getIntent().getBooleanExtra("EXIT", false)) {
finish();
}
setContentView(R.layout.blayout);
Button play;
play = (Button) findViewById(R.id.bId);
play.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(ActivityB.this,ActivityC.class));
}
});
}
}
ActivityC
import java.util.Calendar;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
public class ActivityC extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getIntent().getBooleanExtra("EXIT", false)) {
finish();
}
setContentView(R.layout.clayout);
Button play;
play = (Button) findViewById(R.id.cId);
play.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(ActivityC.this,ActivityD.class));
}
});
}
}
ActivityD 重要
import java.util.Calendar;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
public class ActivityD extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getIntent().getBooleanExtra("EXIT", false)) {
finish();
}
setContentView(R.layout.dlayout);
Button play;
play = (Button) findViewById(R.id.dId);
play.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getApplicationContext(),ActivityA.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("EXIT", true);
startActivity(intent);
finish();
}
});
}
}
ActivityE
import java.util.Calendar;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
public class ActivityE extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getIntent().getBooleanExtra("EXIT", false)) {
finish();
}
setContentView(R.layout.elayout);
Button play;
play = (Button) findViewById(R.id.eId);
play.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
});
}
}
只需这样做