我試圖通過單擊按鈕啓動活動。如果用戶點擊MenuActivity中的PLAY按鈕,GameActivity應該啓動。但它不起作用。我無法通過單擊按鈕啓動活動
public class MenuActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_menu);
}
public void startGameEngine(View view) {
Intent myintent = new Intent(this, GameActivity.class);
startActivity(myintent);
}
這裏是一個應該開始GameActivity類時在PLAY-按鈕,用戶點擊。
public class GameActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_game);
Intent intent = getIntent();
}
這裏是menu.xml文件文件,其中包括按鈕
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/menubackground_color"
tools:context="com.example.vincenzoauricchio.example.MenuActivity">
<TextView
android:id="@+id/textView3"
android:layout_width="381dp"
android:layout_height="67dp"
android:layout_marginBottom="440dp"
android:layout_marginTop="88dp"
android:fontFamily="@font/vt323"
android:text="@string/logo2"
android:textAlignment="center"
android:textAllCaps="false"
android:textColor="@android:color/black"
android:textSize="36sp"
android:textStyle="bold|italic"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_bias="0.666"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />
<Button
android:id="@+id/btnPlay"
android:layout_width="100dp"
android:layout_height="60dp"
android:layout_marginBottom="265dp"
android:layout_marginTop="87dp"
android:fontFamily="@font/vt323"
android:onClick="startGameEngine"
android:text="@string/button_play"
android:textSize="30sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView3"
app:layout_constraintVertical_bias="0.0" />
你這是什麼意思*但是,不*工作,儘量準確地提錯誤/問題,您可以檢查https://開頭計算器.com/help /如何在發帖之前提問 –
您是否在Manifest中添加了GameActivity? – DavidH
試試我的答案.. –