Dialog对话框

对话框种类：普通对话框，单选对话框，多选对话框，自定义对话框，时间对话框，进度条对话框。

创建过程：创建构建者，设置对话框，创建对话框，显示对话框。

普通对话框：

AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setIcon(R.mipmap.ic_launcher)
                .setTitle("你好")
                .setMessage("普通对话框")
                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        Toast.makeText(MainActivity.this,"确定",Toast.LENGTH_SHORT).show();
                    }
                })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        Toast.makeText(MainActivity.this,"取消",Toast.LENGTH_SHORT).show();
                    }
                });
        AlertDialog alertDialog = builder.create();
        alertDialog.show();

单选对话框：

final String[] strings = new String[]{"江苏","宿迁","泗阳"};
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("单选对话框")
                .setIcon(R.mipmap.ic_launcher)
                .setSingleChoiceItems(strings, 0, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        Toast.makeText(MainActivity.this,strings[i],Toast.LENGTH_SHORT).show();
                    }
                })
                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        Toast.makeText(MainActivity.this,"确定",Toast.LENGTH_SHORT).show();
                    }
                }).setNegativeButton("取消", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialogInterface, int i) {
                    Toast.makeText(MainActivity.this,"取消",Toast.LENGTH_SHORT).show();
                }}).create().show();

多选对话框：

final String[] name = new String[]{"你","我","他"};
        final boolean[] flag = new boolean[]{true,false,true};
        AlertDialog.Builder builder  = new AlertDialog.Builder(this);
        builder.setMultiChoiceItems(name, flag, new DialogInterface.OnMultiChoiceClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i, boolean b) {
                flag[i] = b;
                Toast.makeText(MainActivity.this,name[i]+":"+b,Toast.LENGTH_SHORT).show();
            }
        }).setPositiveButton("确定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                String str="";
                for (int i1=0;i1<flag.length;i1++){
                    if (flag[i1]){
                        str=str+name[i1]+",";
                    }
                }
                Toast.makeText(MainActivity.this,str,Toast.LENGTH_SHORT).show();
            }
        }).setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        Toast.makeText(MainActivity.this,"取消",Toast.LENGTH_SHORT).show();
                    }
                });
        AlertDialog alertDialog = builder.create();
        alertDialog.show();

日期对话框：

Calendar calendar = Calendar.getInstance();
        new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker datePicker, int i, int i1, int i2) {
                Toast.makeText(MainActivity.this,i+"年"+(i1+1)+"月"+i2+"日",Toast.LENGTH_SHORT).show();
            }
        },calendar.get(Calendar.YEAR),calendar.get(Calendar.MONTH),calendar.get(Calendar.DAY_OF_MONTH)).show();

时间对话框：

Calendar calendar = Calendar.getInstance();
        new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {
            @Override
            public void onTimeSet(TimePicker timePicker, int i, int i1) {
                Toast.makeText(MainActivity.this,i+"时"+i1+"分",Toast.LENGTH_SHORT).show();
            }
        },calendar.get(Calendar.HOUR_OF_DAY),calendar.get(Calendar.MINUTE),true).show();

进度条对话框：

final ProgressDialog progressDialog = new ProgressDialog(this);
        progressDialog.setMax(100);
        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        progressDialog.setMessage("正在下载");
        progressDialog.show();
        new Thread(){
            @Override
            public void run() {
                int progress=0;
                super.run();
                for (int i=0;i<100;i++){
                    try {
                        Thread.sleep(200);
                        progress+=i;
                        progressDialog.setProgress(progress);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }.start();