android - 如何在onClick View 方法中使用两个按钮水平增加和减少进度条(android)

Question

    mIncButton = (Button) v.findViewById(R.id.Increment);
    mIncButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
             //mProgress.incrementProgressBy(1);
            //mProgress.setProgress(100 * mProgress.getProgress());
            mProgress.setProgress(0);
            mProgress.setMax(100);
            mProgress.setProgress(mProgress.getMax()/100*5);
        }
    });

我尝试了不同的方法，但我无法获得它我只需要使用 ONCLICK VIEW 即可。

this is how layout look like and whenever i press increase button, that progress bar have to increase 5% of it and as same with decrease button

Answer 1

只需在外面维护一个柜台。仅在 xml 中设置最大值。

int progress = 0;

mIncButton = (Button) v.findViewById(R.id.Increment);
mIncButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        if(progress < 100)
          progress += 5; 
        mProgress.setProgress(progress);
    }
});
mDecButton = (Button) v.findViewById(R.id.Decrement);
mIncButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        if(progress > 0)
          progress -= 5; 
        mProgress.setProgress(progress);
    }
});

希望对你有帮助:)