在自定義加載對話框中更新 TextView

Question

我想在三秒鍾后將 TextView 的內容從“正在加載..”更新為“准備中”。 關於如何實現這一目標的任何建議？

那是我的加載對話框。

public class LoadingDialog {

    private Activity activity;
    private AlertDialog dialog;

    LoadingDialog(Activity activity) {
        this.activity = activity;
    }

    void startLoadingDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(activity);
        LayoutInflater inflater = activity.getLayoutInflater();
        builder.setView(inflater.inflate(R.layout.document_request_loading, null));
        builder.setCancelable(false);

        dialog = builder.create();
        dialog.show();
        
    }

    void dismissStartLoadingDialog(){
        dialog.dismiss();
    }
}

Answer 1

我認為這對您在主線程中更改計時器有用

public class LoadingDialog {

    private Activity activity;
    private AlertDialog dialog;
TextView tView;

    LoadingDialog(Activity activity) {
        this.activity = activity;
    }

    void startLoadingDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(activity);
        LayoutInflater inflater = activity.getLayoutInflater();
View view =inflater.inflate(R.layout.document_request_loading, null);
tView=view.findViewById(R.id.tView);
        builder.setView(view);
        builder.setCancelable(false);

        dialog = builder.create();
        dialog.show();
        
    }
void changeTextLoading(String string){
if(tView!=null){
tView.setText(string);
}
}

    void dismissStartLoadingDialog(){
        dialog.dismiss();
    }
}