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我是一個新手程序員在Android工作室,我想知道爲什麼 延遲函數在handler.postDelayed (new Runnable(){
上做錯誤我必須導入任何庫嗎?什麼是。爲:@override...
「每當我做了代碼感謝快捷鍵handler.postDelayed錯誤(新的Runnable(){
繼承人的代碼:?
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Handler handler = new Handler();
handler.postDelayed (new Runnable(){
@.
public void run() {
msg();
}
},500);
}