[英]Android: App won't load my splash screen and moves directly to the onboarding screens
我刚刚进入 Android 应用程序开发,并一直在零零碎碎地处理我的项目的一部分。
我首先创建了我的入职屏幕,然后制作了我的动画启动屏幕。 但是,当我运行我的应用程序时,我的启动画面没有显示,而是首先加载了入门页面。 我该如何解决这个问题,让我的应用程序在进入引导屏幕之前首先通过启动画面过渡?
这是我的 SplashActivity 类代码
public class SplashActivity extends AppCompatActivity {
private static int SPLASH_SCREEN = 5000;
// Variables
Animation topAnim;
ImageView image;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_splash);
// Animations
topAnim = AnimationUtils.loadAnimation(this,R.anim.top_animation);
// Hooks
image = findViewById(R.id.splashScreenLogo);
image.setAnimation(topAnim);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
Intent intent = new Intent(SplashActivity.this, OnboardingActivity.class);
startActivity(intent);
finish();
}
}, SPLASH_SCREEN);
}
}
这是我的 OnboardingActivity 类代码
public class OnboardingActivity extends AppCompatActivity {
private OnboardingAdapter onboardingAdapter;
private LinearLayout layoutOnboardingIndicators;
private MaterialButton buttonOnboardingAction;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_onboarding);
// Onboarding Screens
layoutOnboardingIndicators = findViewById(R.id.layoutOnboardingIndicators);
buttonOnboardingAction = findViewById(R.id.buttonOnboardingAction);
setupOnboardingItems();
final ViewPager2 onboardingViewPager = findViewById(R.id.onboardingViewPager);
onboardingViewPager.setAdapter(onboardingAdapter);
setupOnboardingIndicators();
setCurrentOnboardingIndicator(0);
onboardingViewPager.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
@Override
public void onPageSelected(int position) {
super.onPageSelected(position);
setCurrentOnboardingIndicator(position);
}
});
buttonOnboardingAction.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(onboardingViewPager.getCurrentItem() + 1 < onboardingAdapter.getItemCount()) {
onboardingViewPager.setCurrentItem(onboardingViewPager.getCurrentItem() + 1);
}
else {
startActivity(new Intent(getApplicationContext(), SignUpActivity.class));
finish();
}
}
});
}
}
编辑 - 我的清单文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.mentalhealthapp">
<application
android:allowBackup="true"
android:icon="@drawable/treen_app_logo"
android:label="treen"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".SplashActivity"></activity>
<activity android:name=".HomeActivity" />
<activity android:name=".SignInActivity" />
<activity android:name=".SignUpActivity" />
<activity android:name=".OnboardingActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
我应该在我的清单文件中更改什么?
您需要在 AndroidManifest.xml 文件中将 Launch 活动设置为 SplashActivity
<activity
android:name=".SplashActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
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