我无法从线程开始活动。我想在 2 秒后开始一项活动。但它给出了错误 - 应用程序意外停止。
这是我要从中运行线程的活动的代码。
package com.pack.prog;
import android.app.Activity;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager.LayoutParams;
import android.widget.Toast;
public class Splash extends Activity {
MediaPlayer mPlayer;
@Override
public void onCreate(Bundle savedInstanceState) {
try {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(LayoutParams.FLAG_FULLSCREEN,
LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.splash);
mPlayer = MediaPlayer.create(Splash.this, R.raw.happy_moments);
mPlayer.start();
Thread thread = new Thread() {
public void run() {
try {
sleep(2000);
} catch (Exception e) {
// TODO Auto-generated catch block
Toast.makeText(Splash.this, e.toString(),
Toast.LENGTH_LONG).show();
} finally {
Intent i = new Intent("com.pack.prog.StartingMenu");
startActivity(i);
}
};
};
thread.start();
} catch (Exception e) {
Toast.makeText(this, e.toString(), Toast.LENGTH_LONG).show();
}
}
@Override
protected void onPause() {
try {
super.onPause();
if (mPlayer.isPlaying()) {
mPlayer.release();
}
} catch (Exception e) {
// TODO Auto-generated catch block
Toast.makeText(this, e.toString(), Toast.LENGTH_LONG).show();
}
}
@Override
public void onBackPressed() {
try {
super.onBackPressed();
if (mPlayer.isPlaying()) {
mPlayer.release();
}
} catch (Exception w) {
Toast.makeText(this, w.toString(), Toast.LENGTH_LONG).show();
} finally {
finish();
}
}
}
这是清单文件。
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.pack.prog"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="10" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".Splash"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".StartingMenu"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.pack.prog.STARTINGMENU" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
我认为只有清单存在一些问题。