让ImageView的android系统中部分不可 [英] Make ImageView partially invisible in android

问题描述

请ImageView的部分不可

Make ImageView partially invisible

我有以下加载条。我有中间的按钮图像，灰色圆圈和一个黄色圆圈的图像了。但我不知道我怎么能做出这样的装载吧？

I have following loading bar. I have middle button image, the gray circle and a yellow circle image too. But i am not sure how can I make such a loading bar?

1. 一个想到的是，我的步伐黄圈在灰色cirle使其不可见，然后每一秒做一个部分可见。但我不知道我怎样才能使ImageView的可见部分和隐藏所有其他。

微红黄色进步，我有完全的位图可360度

The reddish yellow progress, I have complete bitmap available 360 degree

推荐答案

能否使用[ProgressDialog]：的 http://developer.android.com/reference/android/app/ProgressDialog.html

Could use [ProgressDialog]: http://developer.android.com/reference/android/app/ProgressDialog.html

我不很懂如何插入中间的按键在ProgressDialog的圈子。

I don't know very much how to insert the center button in the circle of ProgressDialog.

你想要的是，当你按下中间的按钮，该ProgressDialog会进步（黄色部分将会增长，而灰色部分将减少）？

What you want is when you push the center button, the ProgressDialog will progress (the yellow part will grow and the grey part will reduce) ?

ProgressDialog m_pDialog = new ProgressDialog(***class.this);
m_pDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);  // Set it to circle style
m_pDialog.setButton(R.drawable.img1);  // Perhaps this can set the center button ? should change code
m_pDialog.setIndeterminate(false);     // Make the progress displayed with a percentage rather than a constantly moving loading bar
m_pDialog.show();

添加一个点击监听器中间的按钮，它被点击时，启动线程进步的对话吧。

Add a click-listener to the center button, when it is clicked, start the Thread to progress the Dialog bar.

button.setOnClickListener(new Button.OnClickListener() {
    public void onClick(View v) {
        int m_count = 0;
        new Thread() {
            public void run() {
                try {
                    while (m_count <= 100) {
                        m_pDialog.setProgress(m_count++);
                        Thread.sleep(100);
                    }
                    m_pDialog.cancel();
                } catch (InterruptedException e) {
                      m_pDialog.cancel();
                }
            }
        }.start();
    }
});

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