初识别进度条

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        //启用窗口特征
        //进度条
//        requestWindowFeature(Window.FEATURE_PROGRESS);
        //进度圈圈 表示状态 不能显示具体数值
       requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
        setContentView(R.layout.activity_main);
        //显示两种进度条

        //进度条可看见
       setProgressBarIndeterminateVisibility(true);

        //进度条 可看见 Max = 10000
        setProgressBarVisibility(true);
        setProgress(10000);

    }

　　

按钮控制

public class MainActivity extends Activity implements View.OnClickListener{
    private ProgressBar progress;
    private Button add;
    private Button reduce;
    private Button reset;
    private TextView text;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //注册控件
        init();

        add.setOnClickListener(this);
        reduce.setOnClickListener(this);
        reset.setOnClickListener(this);
    }

    private void init() {
        progress = (ProgressBar)findViewById(R.id.progressBar);
        add       = (Button) findViewById(R.id.button1);
        reduce   =  (Button) findViewById(R.id.button2);
        reset   =(Button)findViewById(R.id.button3);
        text    =(TextView)findViewById(R.id.textView);

        //获取进度
        int first =  progress.getProgress();
        int second=  progress.getSecondaryProgress();
        int Max   =  progress.getMax();

        text.setText("第一进度条百分比：" + ((int) (first / (float) Max * 100)) + "第二进度条百分比为:" + ((int) (second / (float) Max * 100)));
    }
    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case  R.id.button1:
                progress.incrementProgressBy(10);
                progress.incrementSecondaryProgressBy(10);
                break;
            case  R.id.button2:
                progress.incrementProgressBy(-10);
                progress.incrementSecondaryProgressBy(-10);
                break;
            case  R.id.button3:
                progress.setProgress(0);
                progress.setSecondaryProgress(10);
                break;
        }
        text.setText("第一进度条百分比：" + ((int) (progress.getProgress() / (float) progress.getMax() * 100)) + "第二进度条百分比为:" + ((int) (progress.getSecondaryProgress() / (float) progress.getMax() * 100)));
    }