其他几种常用对话框基本使用

public class MainActivity extends AppCompatActivity implements View.OnClickListener{

    private Button btn_one;
    private Button btn_two;
    private Button btn_three;
    private ProgressDialog pd1 = null;
    private ProgressDialog pd2 = null;
    private final static int MAXVALUE = 100;
    private int progressStart = 0;
    private int add = 0;
    private Context mContext = null;


    //定义一个用于更新进度的Handler,因为只能由主线程更新界面,所以要用Handler传递信息
    final Handler hand = new Handler()
    {
        @Override
        public void handleMessage(Message msg) {
            //这里的话如果接受到信息码是123
            if(msg.what == 123)
            {
                //设置进度条的当前值
                pd2.setProgress(progressStart);
            }
            //如果当前大于或等于进度条的最大值,调用dismiss()方法关闭对话框
            if(progressStart >= MAXVALUE)
            {
                pd2.dismiss();
            }
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mContext = MainActivity.this;
        bindViews();
    }

    private void bindViews() {
        btn_one = (Button) findViewById(R.id.btn_one);
        btn_two = (Button) findViewById(R.id.btn_two);
        btn_three = (Button) findViewById(R.id.btn_three);
        btn_one.setOnClickListener(this);
        btn_two.setOnClickListener(this);
        btn_three.setOnClickListener(this);
    }


    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.btn_one:
                //这里的话参数依次为,上下文,标题,内容,是否显示进度,是否可以用取消按钮关闭
                ProgressDialog.show(MainActivity.this, "资源加载中", "资源加载中,请稍后...",false,true);
                break;
            case R.id.btn_two:
                pd1 = new ProgressDialog(mContext);
                //依次设置标题,内容,是否用取消按钮关闭,是否显示进度
                pd1.setTitle("软件更新中");
                pd1.setMessage("软件正在更新中,请稍后...");
                pd1.setCancelable(true);
                //这里是设置进度条的风格,HORIZONTAL是水平进度条,SPINNER是圆形进度条
                pd1.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                pd1.setIndeterminate(true);
                //调用show()方法将ProgressDialog显示出来
                pd1.show();
                break;
            case R.id.btn_three:
                //初始化属性
                progressStart = 0;
                add = 0;
                //依次设置一些属性
                pd2 = new ProgressDialog(MainActivity.this);
                pd2.setMax(MAXVALUE);
                pd2.setTitle("文件读取中");
                pd2.setMessage("文件加载中,请稍后...");
                //这里设置为不可以通过按取消按钮关闭进度条
                pd2.setCancelable(false);
                pd2.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                //这里设置的是是否显示进度,设为false才是显示的哦！
                pd2.setIndeterminate(false);
                pd2.show();
                //这里的话新建一个线程,重写run()方法,
                new Thread()
                {
                    public void run()
                    {
                        while(progressStart < MAXVALUE)
                        {
                            //这里的算法是决定进度条变化的,可以按需要写
                            progressStart = 2 * usetime() ;
                            //把信息码发送给handle让更新界面
                            hand.sendEmptyMessage(123);
                        }
                    }
                }.start();
                break;
        }
    }

    //这里设置一个耗时的方法:
    private int usetime() {
        add++;
        try{
            Thread.sleep(100);
        }catch (InterruptedException e) {
            e.printStackTrace();
        }
        return add;
    }
}

public class MainActivity extends AppCompatActivity implements View.OnClickListener{

    private Button btn_date;
    private Button btn_time;
    private String result = "";


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

    private void bindViews() {
        btn_date = (Button) findViewById(R.id.btn_date);
        btn_time = (Button) findViewById(R.id.btn_time);

        btn_date.setOnClickListener(this);
        btn_time.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        result = "";
        switch (v.getId()){
            case R.id.btn_date:
                Calendar cale1 = Calendar.getInstance();
                new DatePickerDialog(MainActivity.this,new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int monthOfYear,
                                          int dayOfMonth) {
                        //这里获取到的月份需要加上1哦~
                        result += "你选择的是"+year+"年"+(monthOfYear+1)+"月"+dayOfMonth+"日";
                        Toast.makeText(getApplicationContext(), result, Toast.LENGTH_SHORT).show();
                    }
                }
                        ,cale1.get(Calendar.YEAR)
                        ,cale1.get(Calendar.MONTH)
                        ,cale1.get(Calendar.DAY_OF_MONTH)).show();
                break;
            case R.id.btn_time:
                Calendar cale2 = Calendar.getInstance();
                new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener() {
                    @Override
                    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                        result = "";
                        result += "您选择的时间是:"+hourOfDay+"时"+minute+"分";
                        Toast.makeText(getApplicationContext(), result, Toast.LENGTH_SHORT).show();
                    }
                }, cale2.get(Calendar.HOUR_OF_DAY), cale2.get(Calendar.MINUTE), true).show();
                break;
        }
    }
}