Android 未显示启动屏幕
我有两个类,分别是Android 未显示启动屏幕,android,Android,我有两个类,分别是Splash.java和Activity2.java!!我尝试过splash的简单代码,如下所示: public class Splash extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout
Splash.java
和Activity2.java
!!我尝试过splash的简单代码,如下所示:
public class Splash extends Activity
{
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.splash);
Thread thread= new Thread()
{
@Override
public void run()
{
super.run();
startActivity(new Intent(Splash.this,Trial.class));
finish();
}
};
thread.start();
}
}
在我的舱单上,我也提供了条目。我的代码正在运行,没有错误。R.layout.splash的代码如下:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_horizontal"
>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/d"
android:layout_gravity="center"/>
</LinearLayout>
谢谢 这样试试
setContentView(R.layout.splashscreen);
new Thread(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(2000);
startActivity(new Intent(SplashScreen.this, Trial.class));
finish();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}).start();
xml文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:background="@drawable/screen1">
</LinearLayout>
公共类启动扩展活动{
相对长度容器;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.splashscreen);
容器=(RelativeLayout)findViewById(R.id.container);
线程线程=新线程(){
@凌驾
公开募捐{
试一试{
睡眠(3000);//睡眠3秒钟
意图=新意图(Splash.this,Activity2.class);
intent.addFlags(intent.FLAG\u ACTIVITY\u CLEAR\u TOP);
星触觉(意向);
完成();
}捕捉(中断异常e){
//e.printStackTrace();
Toast.makeText(getApplicationContext(),e.getMessage(),Toast.LENGTH_SHORT).show();
}
super.run();
}
};
thread.start();
}
@凌驾
公共无效OnConfiguration已更改(配置newConfig){
super.onConfigurationChanged(newConfig);
//检查屏幕的方向
if(newConfig.orientation==Configuration.orientation\u横向){
//Toast.makeText(此为“横向”,Toast.LENGTH_SHORT).show();
设置大小();
}else if(newConfig.orientation==Configuration.orientation\u纵向){
//Toast.makeText(这是“肖像”,Toast.LENGTH_SHORT).show();
设置大小();
}
}
私有void setSize(){
if(容器!=null){
if(container.getChildCount()>0){
container.getChildAt(0).setMinimumHeight(getWindowManager().getDefaultDisplay().getHeight()*4/10);
}
}
}
}
**你的飞溅尖叫布局**
**显示**
}请重新格式化您的代码,并提供更多详细信息。我尝试了许多方法,每次都得到:警告:活动未启动,它的当前任务已被带到前面,在此之后,我的试用版将在屏幕上显示此警告,当项目已经运行并且您再次运行项目时,会出现此警告。首先在模拟器或设备中关闭项目,然后尝试运行。谢谢回复!!我已经这样做了,即使我关闭了我的整个项目,清理,再次运行仍然存在问题!!!我也在清单文件中给出了条目!!几毫秒后,我是否还错了什么…(生命周期)!!这是一个很好的方法吗5年后:)thnaks,对不起,我刚刚加入了stack
public class Splash extends Activity {
RelativeLayout container;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.splashscreen);
container = (RelativeLayout) findViewById(R.id.container);
Thread thread = new Thread(){
@Override
public void run() {
try {
sleep(3000);//sleeps for 3 second
Intent intent = new Intent(Splash.this,Activity2.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
finish();
} catch (InterruptedException e) {
// e.printStackTrace();
Toast.makeText(getApplicationContext(),e.getMessage(),Toast.LENGTH_SHORT).show();
}
super.run();
}
};
thread.start();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Checks the orientation of the screen
if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
//Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
setSize();
} else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
//Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
setSize();
}
}
private void setSize(){
if(container!=null) {
if (container.getChildCount() > 0) {
container.getChildAt(0).setMinimumHeight(getWindowManager().getDefaultDisplay().getHeight() * 4 / 10);
}
}
}
}
** your splash screeen layout **
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/shaded_rectangle"
android:id="@+id/container">
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/splas"/>
</RelativeLayout>
**manifest**
<activity
android:name=".collegeconnect.activity.Splash"
android:label="@string/app_name"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
public class MainActivity extends AppCompatActivity {
private static int SPLASH_TIME_OUT = 4000;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new Handler().postDelayed
(
new Runnable()
{
@Override
public void run ()
{
Intent i = new Intent(MainActivity.this, HomeActivity.class);
startActivity(i);
finish();
}
},SPLASH_TIME_OUT
);
}