ios - 设置/取消设置按钮背景颜色

Question

使用方法：

- (IBAction)buttonClicked:(id)sender {

    mybutton.backgroundColor = [UIColor blackColor];

}

我可以将黑色设置为mybutton。如何在每次单击按钮时在两种颜色之间切换？

提前Tx

Answer 1

在你的h文件中初始化bool属性

@FXML
    private void handleMarkovText() {
        textgen.MarkovTextGenerator mtg = mainApp.getMTG();
        Task<textgen.MarkovTextGenerator> task = new Task<textgen.MarkovTextGenerator>() {
            @Override
            public textgen.MarkovTextGenerator call() {
                // process long-running computation, data retrieval, etc...

            mtg.retrain(textBox.getText());
            return mtg;
        }
    };

    Dialog<Void> loadDialog = new Dialog<Void>();
        loadDialog.setOnCloseRequest( e -> {

            if(!task.isDone()) {
                e.consume();
            }

        });

    loadDialog.setContentText("Training MTG...");

    task.setOnRunning( e -> {
        ButtonType cancelButtonType = new ButtonType("Cancel", ButtonData.CANCEL_CLOSE);
        //Dialog<Void> loadDialog = new Dialog<Void>();
        loadDialog.getDialogPane().getButtonTypes().add(cancelButtonType);
        loadDialog.show();
        if(task.isCancelled()) {
            System.out.println("Cancelling on running");
        }
    });


    task.setOnSucceeded(e -> {
        System.out.println("Succeeded");
        loadDialog.close();
        textgen.MarkovTextGenerator result = task.getValue();
        mainApp.showMarkovDialog(result);
        // update UI with result
    });

    task.setOnCancelled(e -> {
        System.out.println("Cancelled");
    });

    task.setOnFailed(e -> {
        //System.out.println("failed");
    });
    //ProgressBar bar = new ProgressBar();
    //bar.progressProperty().bind(task.progressProperty());
   Thread thread  = new Thread(task);
   thread.start();





    // train/retrain markov
    // show results

}

在你的m文件中，在viewDidLoad中放入以下行

@property (nonatomic, assign) BOOL myBool;

然后在你的IBAction中，

self.myBool = YES;