我需要为我的应用程序启动画面。 尝试创建有我的闪屏图像的活动; 和使用用于循环和引入的时间延迟Timer类试过。 但din't工作方式。 我这样做是错误的; 如果是，什么是正确的方法是什么？
Answer 1:
上述解决方案是好的，但如果用户飞溅延迟之前按下后退键（或关闭您的应用程序）结束。 该应用程序仍然可能会打开下一个活动，这是不是真的人性。
这就是为什么我有一个自定义处理工作，并且在删除的onDestroy任何未决消息（）。
public class SplashActivity extends Activity
{
private final static int MSG_CONTINUE = 1234;
private final static long DELAY = 2000;
@Override
protected void onCreate(Bundle args)
{
super.onCreate(args);
setContentView(R.layout.activity_splash);
mHandler.sendEmptyMessageDelayed(MSG_CONTINUE, DELAY);
}
@Override
protected void onDestroy()
{
mHandler.removeMessages( MSG_CONTINUE );
super.onDestroy();
}
private void _continue()
{
startActivity(new Intent(this, SomeOtherActivity.class));
finish();
}
private final Handler mHandler = new Handler()
{
public void handleMessage(android.os.Message msg)
{
switch(msg.what){
case MSG_CONTINUE:
_continue();
break;
}
}
};
}
Answer 2:
试试这个
public class SplashActivity extends Activity {
Handler handler;
private long timeDelay = 2000; //2 seconds
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.SplashLayout);
final Intent i = new Intent(this, Landing.class);
handler = new Handler();
handler.postDelayed(new Runnable() {
public void run() {
startActivity(i);
finish();
}
}, timeDelay);
}
}
Answer 3:
你可能只是推迟？
Thread delay = new Thread() {
@Override
public void run() {
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
}
runOnUiThread(new Runnable() {
@Override
public void run() {
startNextActivity();
}
});
}
};
Answer 4:
试试这个，
protected int _splashTime = 15000;
private Handler handler;
private Runnable runnable;
private Context context;
@Override
public void onCreate(Bundle savedInstance)
{
super.onCreate(savedInstance);
setContentView(R.layout.splash);
final SplashScreen sPlashScreen = this;
handler = new Handler();
runnable = new Runnable() {
@Override
public void run() {
try {
handler.removeCallbacks(runnable);
handler.postDelayed(runnable, _splashTime);
}
finally {
finish();
//start a new activity
//mtdCheckLicense();
Intent main = new Intent();
main.setClass(sPlashScreen, YourMainActivity.class);
startActivity(main);
handler.removeCallbacks(runnable);
}
}
};
handler.postDelayed(runnable, 2000);
}
它会溅了一段时间，推出的主要活动。 在此代码启动画面等待2秒，然后启动的主要活动。
Answer 5:
我为我的每一个项目是做最简单的方法是这样的：
public class SplashActivity extends Activity {
protected boolean active = true;
protected int splashTime = 1000;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.splash_screen);
Thread splashTread = new Thread() {
@Override
public void run() {
try {
int waited = 0;
while(active && (waited < splashTime)) {
sleep(100);
if(active) {
waited += 100;
}
}
} catch(InterruptedException e) {
// do nothing
} finally {
finish();
// Start your Activity here
}
}
};
splashTread.start();
}
//...
Answer 6:
此处描述的解决方案，你是在浪费时间，因为他们暂停初始化2-3seconds他们再继续。
我喜欢加入Splash Screen Layout在我之上main_activity.xml 。 我通过扩展应用检测应用程序的第一次启动。 如果it's第一个开始，我告诉我的启动画面，而UI是建立在后台...（使用后台线程，如果进度落后！）
//Extend Application to save the value. You could also use getter/setter for this instead of Shared Preferences...
public class YourApplication extends Application {
public static final String YOUR_APP_STARTUP = "APP_FIRST_START";
@Override
public void onCreate() {
super.onCreate();
//set SharedPreference value to true
SharedPreferences mPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor = mPreferences.edit();
editor.putBoolean(YOUR_APP_STARTUP, true);
editor.apply();
...
}
检查你的第一个启动MainActivity
public class YourMainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//hide actionbar and other menu which could overlay the splash screen
getActionBar().hide();
setContentView(R.layout.activity_main);
Boolean firstStart = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()).getBoolean(TVApplication.YOUR_APP_STARTUP, true);
if (firstStart) {
//First app start, show splash screen an hide it after 5000ms
final RelativeLayout mSplashScreen = (RelativeLayout) findViewById(R.id.splash_screen);
mSplashScreen.setVisibility(View.VISIBLE);
mSplashScreen.setAlpha(1.0f);
final FrameLayout mFrame = (FrameLayout) findViewById(R.id.frame_container);
mFrame.setAlpha(0.0f);
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
Animation fadeOutAnimation = AnimationUtils.loadAnimation(getApplicationContext(),
R.anim.fade_out_animation);
fadeOutAnimation.setDuration(500);
fadeOutAnimation.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
mFrame.setAlpha(1.0f);
getActionBar().show();
}
@Override
public void onAnimationEnd(Animation animation) {
mSplashScreen.setVisibility(View.GONE);
}
@Override
public void onAnimationRepeat(Animation animation) {
}
});
mSplashScreen.startAnimation(fadeOutAnimation);
}
}, 5000); //<-- time of Splash Screen shown
} else {
((RelativeLayout) findViewById(R.id.splash_screen)).setVisibility(View.GONE);
getActionBar().show();
}
在插入顶部的闪屏在main.xml中。 我喜欢RelativeLayout为。 在这个例子中，闪屏被放置在同一个布局Navitgation Drawer ，我们真的很喜欢，不`吨我们？
//main_activity.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<!-- The main content view -->
<FrameLayout
android:id="@+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- The navigation drawer list -->
<ListView
android:id="@+id/slider_list"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_gravity="start"
android:background="@color/tvtv_background"
android:choiceMode="singleChoice"
android:divider="@drawable/nav_bar_divider"
android:dividerHeight="1dp"
android:listSelector="@android:color/transparent" />
</android.support.v4.widget.DrawerLayout>
<RelativeLayout
android:id="@+id/splash_screen"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:background="@color/tvtv_white"
android:visibility="visible" >
<ImageView
android:id="@+id/splash_screen_logo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:paddingLeft="50dp"
android:paddingRight="50dp"
android:scaleType="fitCenter"
android:src="@drawable/ic_launcher" />
<TextView
android:id="@+id/splash_screen_text"
style="@style/TVTextBlueContent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/splash_screen_logo"
android:layout_centerHorizontal="true"
android:padding="10dp"
android:text="Awesome splash shiat" />
<ProgressBar
android:id="@+id/splash_screen_loader"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/splash_screen_text"
android:layout_centerHorizontal="true"
android:clickable="false"
android:indeterminate="true" />
</RelativeLayout>
</RelativeLayout>
文章来源: Best way to have a splash screen in an Android application?
