public?class?MainActivity?extends?Activity?{
????@Override
????protected?void?onCreate(Bundle?savedInstanceState)?{
????????super.onCreate(savedInstanceState);
????????setContentView(R.layout.activity_main);
????????
????????//?Handler
????????/*
?????????*?r:線程
?????????*?delayMillis:控制線程時(shí)間
?????????*/
????????new?Handler().postDelayed(
???????? new?Runnable()?{
@Override
public?void?run()?{
//?寫跳轉(zhuǎn)
Intent?intent?=?new?Intent();
intent.setClass(MainActivity.this,LoginActivity.class);
startActivity(intent);
}
},?3000);
????????
????????
????}
}
7 回答
慕妹5461943
TA貢獻(xiàn)290條經(jīng)驗(yàn) 獲得超0個(gè)贊
慕瓜4299113
TA貢獻(xiàn)4條經(jīng)驗(yàn) 獲得超0個(gè)贊
朋友，電商APP里面，遇到過這個(gè)錯(cuò)誤嗎，
LauncherDelegate's FragmentManager is null
怎么解決啊
緣來
TA貢獻(xiàn)2條經(jīng)驗(yàn) 獲得超0個(gè)贊
謝謝各位，問題所在：
?setContentView(R.layout.activity_main);
每個(gè)界面的java文件和html一定要對(duì)應(yīng)上?
緣來
TA貢獻(xiàn)2條經(jīng)驗(yàn) 獲得超0個(gè)贊
error ?opening?trace?file:?No?such?file?or?directory?(2)
顯示的是這種錯(cuò)誤，該如何解決？
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