Android控件-进度条

ProgressBar

属性：style：“？android：attr/peogressBarStyleHorizontal” //设置样式（圈大 圈小 水平样式）
progress：20 //当前进度
max：100 //最大进度
min：0 //最小进度

SeekBar

属性：同上
事件：onSeekBarChangeLinsener //三个方法：1.进度改变 带参数progress 2.开始拖拉 3.停止拖拉

RatingBar

属性：android：numStarts = “5” //星星数量
android：min = “0”；
android：rating = “0.3” //当前进度
android：stepSize = “0.5” //步数（一颗星几次点完）

assets

方法：getAssets（）； //获得assets文件夹
open（文件名） //打开指定文件 得到inputStream对象

页面跳转

Intent intent = new Intent(LoadFileActivity.this,Main)

注意事项

主线程又叫UI线程只能更新UI
runonUiThread(线程1对象) //将线程1发送到主线程执行

代码实现

// An highlighted block
<LinearLayout
        android:id="@+id/activity04"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="5"
        android:orientation="vertical"
        android:visibility="gone">

        <TextView
            android:id="@+id/dq"
            android:layout_width="match_parent"
            android:layout_height="200dp" />

        <ProgressBar
            android:id="@+id/jdt"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            style="?android:attr/progressBarStyleHorizontal"
            android:max="742" />

        <Button
            android:id="@+id/ksxz"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:text="开始下载"/>

    </LinearLayout>






//JAVA代码

package com.example.tx.myapplication;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.RadioButton;
import android.widget.TextView;
import android.widget.Toast;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class allActivity extends AppCompatActivity {

    Button btn1;
    Button btn2;
    Button btn3;
    Button btn4;
    Button btn5;

    LinearLayout linearLayout1;
    LinearLayout linearLayout2;
    LinearLayout linearLayout3;
    LinearLayout linearLayout4;

    TextView text1;

    ImageView imageView1;

    RadioButton radioButton1;
    RadioButton radioButton2;
    RadioButton radioButton3;
    RadioButton radioButton4;

    TextView textView01;
    TextView textView02;
    TextView textView03;
    TextView textView04;
    TextView textView05;
    TextView textView06;


    ImageView yejian;
    ImageView qiandao;
    ImageView touxiang;

    Button begin;
    TextView wenbenyu;
    ProgressBar jindutiao;
    StringBuffer stringBuffer = new StringBuffer();

    int sum = 0;

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

        wenbenyu = findViewById(R.id.dq);
        jindutiao = findViewById(R.id.jdt);

        linearLayout1 = findViewById(R.id.activityall);
        linearLayout2 = findViewById(R.id.activity02);
        linearLayout3 = findViewById(R.id.activity03);
        linearLayout4 = findViewById(R.id.activity04);

        text1 = findViewById(R.id.textddbh);
        imageView1 = findViewById(R.id.xiaoshi);
        imageView1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                linearLayout1.setVisibility(View.INVISIBLE);
            }
        });

        btn1 = findViewById(R.id.btn01);
        btn1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, "联系卖家", Toast.LENGTH_SHORT).show();
            }
        });
        btn2 = findViewById(R.id.btn02);
        btn2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, "拨打电话", Toast.LENGTH_SHORT).show();
            }
        });
        btn3 = findViewById(R.id.btnfz);
        btn3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, text1.getText().toString(), Toast.LENGTH_SHORT).show();
            }
        });
        btn4 = findViewById(R.id.btnscdd);
        btn4.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, "删除订单", Toast.LENGTH_SHORT).show();
            }
        });
        btn5 = findViewById(R.id.btnmlhq);
        btn5.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, "卖了换钱", Toast.LENGTH_SHORT).show();
            }
        });

        radioButton1 = findViewById(R.id.r01);
        radioButton1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                linearLayout1.setVisibility(View.VISIBLE);
                linearLayout2.setVisibility(View.GONE);
                linearLayout3.setVisibility(View.GONE);
                linearLayout4.setVisibility(View.GONE);
            }
        });

        radioButton2 = findViewById(R.id.r02);
        radioButton2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                linearLayout1.setVisibility(View.GONE);
                linearLayout2.setVisibility(View.VISIBLE);
                linearLayout3.setVisibility(View.GONE);
                linearLayout4.setVisibility(View.GONE);
            }
        });

        radioButton3 = findViewById(R.id.r03);
        radioButton3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                linearLayout1.setVisibility(View.GONE);
                linearLayout2.setVisibility(View.GONE);
                linearLayout3.setVisibility(View.VISIBLE);
                linearLayout4.setVisibility(View.GONE);
            }
        });

        radioButton4 = findViewById(R.id.r04);
        radioButton4.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                linearLayout1.setVisibility(View.GONE);
                linearLayout2.setVisibility(View.GONE);
                linearLayout3.setVisibility(View.GONE);
                linearLayout4.setVisibility(View.VISIBLE);
            }
        });

        textView01 = findViewById(R.id.ling01);
        textView02 = findViewById(R.id.ling02);
        textView03 = findViewById(R.id.ling03);

        textView04 = findViewById(R.id.kydf);
        textView04.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, "口语得分："+textView01.getText().toString(), Toast.LENGTH_SHORT).show();
            }
        });
        textView05 = findViewById(R.id.ydps);
        textView05.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, "阅读篇数："+textView02.getText().toString(), Toast.LENGTH_SHORT).show();
            }
        });
        textView06 = findViewById(R.id.tlsc);
        textView06.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, "听力时长："+textView03.getText().toString(), Toast.LENGTH_SHORT).show();
            }
        });

        yejian = findViewById(R.id.yjms);
        yejian.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, "夜间模式", Toast.LENGTH_SHORT).show();
            }
        });

        qiandao = findViewById(R.id.qd);
        qiandao.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, "签到成功", Toast.LENGTH_SHORT).show();
            }
        });

        touxiang = findViewById(R.id.tu1);
        touxiang.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(allActivity.this, "编辑头像", Toast.LENGTH_SHORT).show();
            }
        });

        begin = findViewById(R.id.ksxz);
        begin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                new LoadFile().start();
            }
        });
    }

    class LoadFile extends Thread{
        @Override
        public void run() {
            super.run();

            try {
                InputStream inputStream = getAssets().open("JiCheMeng.txt");
//                InputStreamReader inputStreamReade = new InputStreamReader(inputStream,"UTF-8");
//                BufferedReader bufferedReader = new BufferedReader(inputStreamReade);

                int maxlength = inputStream.available();
                jindutiao.setMax(maxlength);

                int len = 0;

                byte[] bytes = new byte[50];
                while((len = inputStream.read(bytes))!=-1){
                    String s = new String(bytes,0,len);
                    stringBuffer.append(s);
                    sum += len;
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    runOnUiThread(new Thread(){
                        @Override
                        public void run() {
                            super.run();
                            wenbenyu.setText(stringBuffer.toString());
                            jindutiao.setProgress(sum);
                        }
                    });

                }
                inputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }



}