[英]Android display Splash-Screen while loading but getting black screen instead
我正在嘗試從以下問題提出建議#2: 加載時Android顯示Splash-Screen
這是使用具有背景可繪制背景的主題,然后從Splash.java加載MainActivity,Splash.java使用該主題在MainActivity處理和加載時顯示圖像。
我黑屏了幾秒鍾,然后在第一次加載時出現了主屏幕。
我想念什么嗎? 還是這個工作正常? 如果工作正常,如果可能,如何顯示圖像而不是黑屏?
@ drawable / background_splash
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Fill the background with a solid color -->
<item
android:drawable="@color/colorPrimary"/>
<item>
<!-- Place your bitmap in the center -->
<bitmap
android:gravity="center"
android:src="@mipmap/ic_launcher"/>
</item>
</layer-list>
@styles
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
<style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
<!-- Splash Screen theme -->
<style name="SplashTheme">
<item name="android:background">@drawable/background_splash</item>
<item name="android:windowAnimationStyle">@null</item>
</style>
</resources>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.epicdecals.openslider">
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:allowBackup="true"
android:icon="@drawable/open_slider_icon"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".Splash"
android:theme="@style/SplashTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
</activity>
</application>
</manifest>
Splash.java
public class Splash extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
finish();
}
}
我認為您的Flash屏幕未加載,因為您沒有設置啟動屏幕的任何時間。
嘗試打擊代碼:
public class Splash extends Activity {
private CountDownTimer timer = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
timer = new CountDownTimer(2000, 1000) {
@Override
public void onTick(long millisUntilFinished) {
}
@Override
public void onFinish() {
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
finish();
}
};
}
@Override
protected void onResume() {
super.onResume();
timer.start();
}
@Override
protected void onPause() {
super.onPause();
timer.cancel();
}
@Override
protected void onDestroy() {
super.onDestroy();
timer = null;
}
//這對我有用。 //這是Splash.java
public class Splash extends ActionBarActivity
{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
Thread th = new Thread() {
public void run() {
try {
sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
// write your activity which you want to open
Intent intent = new Intent(Splash.this, MainActivity.class);
startActivity(intent);
finish();
}
}
};
th.start();
}
}
//這是我的Splash.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:background="@drawable/bk_client"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center"
android:layout_centerInParent="true">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/logo"
android:layout_centerInParent="true"/>
</LinearLayout>
</RelativeLayout>
我必須在樣式主題中添加一個父項才能使其正常工作。 感謝您在評論Redman ^^^^中的鏈接。
例如:
<style name="SplashTheme"
parent="Theme.AppCompat.Light.DarkActionBar">
<item name="android:background">@drawable/background_splash</item>
<item name="android:windowAnimationStyle">@null</item>
</style>
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