Android Studio —— 进度条控制

效果

 
 

代码

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <Button
            android:id="@+id/UserButton"
            android:layout_width="110dp"
            android:layout_height="40dp"
            android:text="显示或隐藏进度条"
            android:textSize="10dp"
            android:onClick="ButtonClick">
        </Button>
        <ProgressBar
            android:id="@+id/progressBar"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">
        </ProgressBar>
    </LinearLayout>

    <View
        android:layout_width="wrap_content"
        android:layout_height="1dp"
        android:background="#ff000000">
    </View>

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <Button
            android:id="@+id/ProgressTest"
            android:layout_width="110dp"
            android:layout_height="40dp"
            android:text="进度测试">
        </Button>
        <ProgressBar
            android:id="@+id/ProgressH"
            android:layout_width="200dp"
            android:layout_height="wrap_content"
            android:max="100"
            style="?android:attr/progressBarStyleHorizontal">
        </ProgressBar>
    </LinearLayout>

    <View
        android:layout_width="wrap_content"
        android:layout_height="1dp"
        android:background="#ff000000">
    </View>

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <Button
            android:id="@+id/ProgressTest2"
            android:layout_width="110dp"
            android:layout_height="40dp"
            android:text="进度测试2">
        </Button>
        <ProgressBar
            android:id="@+id/ProgressH2"
            android:layout_width="200dp"
            android:layout_height="wrap_content"
            android:max="100"
            android:indeterminate="true"
            style="?android:attr/progressBarStyleHorizontal">
        </ProgressBar>
    </LinearLayout>

</LinearLayout>






package com.example.application;

import androidx.appcompat.app.AppCompatActivity;

import android.annotation.SuppressLint;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;

public class MainActivity extends AppCompatActivity {

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

        /* 点击按钮控制进度条是否显示 */
        Button UserButton = findViewById(R.id.UserButton);
        if(UserButton != null) {
            UserButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    ProgressBar progressBar = findViewById(R.id.progressBar);
                    if (progressBar != null) {
                        Log.e("JXD", "结果:"+progressBar.getVisibility()+" " +View.GONE);
                        if(progressBar.getVisibility() == View.GONE){
                            progressBar.setVisibility(View.VISIBLE);
                        }
                        else{
                            progressBar.setVisibility(View.GONE);
                        }
                    }
                }
            });
        }

        /* 点击按钮控制水平进度条值+10 */
        Button ProgressTest = findViewById(R.id.ProgressTest);
        if(ProgressTest != null) {
            ProgressTest.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    ProgressBar progressH = findViewById(R.id.ProgressH);
                    if (progressH != null) {
                        int value = progressH.getProgress();
                        if(value < 100){
                             value += 10;
                        }
                        else{
                            value = 10;
                        }

                        progressH.setProgress(value);
                    }
                }
            });
        }

        /* 点击按钮控制"不精准显示的水平进度条"进行停止/运行 */
        Button ProgressTest2 = findViewById(R.id.ProgressTest2);
        if(ProgressTest2 != null) {
            ProgressTest2.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    ProgressBar ProgressH2 = findViewById(R.id.ProgressH2);
                    if (ProgressH2 != null) {
                        boolean b = ProgressH2.isIndeterminate();
                        ProgressH2.setIndeterminate(!b);
                    }
                }
            });
        }
    }
}

 

关注

笔者 - jxd

微信公众号搜索 “码农总动员” 或 微信扫描下方二维码，了解更多你不知道的XX，O(∩_∩)O