嗨我遇到了設置可見性的問題。我的XML文件:Android元素可見性無法正常工作
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
android:id="@+id/widget324"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/onbg"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<Button android:id="@+id/topBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true">
</Button>
<VideoView
android:id="@+id/introvid"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
</VideoView>
<ImageView
android:id="@+id/Kn8s"
android:visibility="invisible"
android:src="@drawable/kn8s"
android:layout_width="430.50dp"
android:layout_height="121.00dp"
android:layout_gravity="bottom|center_horizontal"
android:layout_marginBottom="10.00dp"
/>
<ImageView
android:id="@+id/introimage"
android:src="@drawable/pcintro"
android:layout_width="215.25dp"
android:layout_height="197.00dp"
android:layout_gravity="center"
/>
</FrameLayout>
和我的java文件是:
import (...)
public class Intro extends Activity {
VideoView vid;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
overridePendingTransition(R.anim.fadein,R.anim.fadeout);
setContentView(R.layout.intro);
vid = (VideoView)findViewById(R.id.introvid);
String urlpath = "android.resource://" + getPackageName() + "/" + R.raw.onbg;
vid.setVideoURI(Uri.parse(urlpath));
vid.start();
FrameLayout widget324 = (FrameLayout)findViewById(R.id.widget324);
widget324.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
Intent OnIntent = new Intent(Intro.this, On.class);
startActivity(OnIntent);
Intro.this.finish();
// TODO Auto-generated method stub
}
return true;
}});
final MediaPlayer mpGo = MediaPlayer.create(this, R.raw.intro);
mpGo.start();
final ImageView productions = (ImageView)findViewById(R.id.Kn8s);
productions.postDelayed(new Runnable() {
public void run() {
productions.findViewById(R.id.Kn8s).setVisibility(ImageView.VISIBLE);
}
}, 10500);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
Intent OnIntent = new Intent(Intro.this, On.class);
startActivity(OnIntent);
Intro.this.finish();
}
}, 12000);
} }
問題是,這裏所說的 「(R.id.Kn8s)」 的元素應該10,5秒後apear(10500 )但它沒有。我注意到,當時間設置在1秒(999)以下時,它工作正常!還注意到,當我扔掉視頻視圖時,「Kn8s」元素會在應該是時間之後變爲可見!爲什麼它不起作用?它應該被聲明onStart方法?或者我不知道...是關於軟件加速的問題? THX每一個答案:)
你有沒有得到點 – Janmejoy