android怎么实现动态显隐进度条

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调用

ProgressUtil.startProgress(this, new ProgressUtil.ICallback() {                @Override                public void progress(int count) {                    LogUtil.d(count + "%");                }            });

ProgressUtil

package com.coral3.common_module.utils;import android.app.Activity;import android.content.Context;import android.os.Handler;import android.os.Message;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ProgressBar;import android.widget.TextView;import com.coral3.common_module.R;import java.sql.Time;import java.util.Timer;import java.util.TimerTask;public class ProgressUtil {    private static View progressContainer;    private static TextView tvView;    private static ProgressBar progressView;    private static ViewGroup contentView;    private static Timer timer = new Timer();    private static TimerTask task;    private static int count = 0;    private static ICallback myICallback;    private static Handler handler = new Handler(new Handler.Callback(){        @Override        public boolean handleMessage(Message msg) {            if(msg.what == 0x1){                count++;                progressView.setProgress(count);                tvView.setText(count + "%");                myICallback.progress(count);            }            return false;        }    });    public static void startProgress(Context context, ICallback iCallback){        if(null == contentView) contentView = ((Activity)context).findViewById(android.R.id.content);        if (progressContainer == null) {            progressContainer = LayoutInflater.from(context).inflate(R.layout.view_progress, null, false);            progressView = progressContainer.findViewById(R.id.pb_common);            tvView = progressContainer.findViewById(R.id.tv_progress);            contentView.addView(progressContainer);        } else {            progressContainer.setVisibility(View.VISIBLE);        }        myICallback = iCallback;        task = new TimerTask() {            @Override            public void run() {                if(count > 99){                    hideProgressInUiThread((Activity) context);                }else{                    handler.sendEmptyMessage(0x1);                }            }        };        if(timer == null) timer = new Timer();        timer.schedule(task, 10, 1000/60);    }    public static void endTimer(){        timer.cancel();        task.cancel();        task = null;        timer = null;        count = 0;    }    public static void hideProgress(){        if (progressContainer != null) {            endTimer();            progressContainer.setVisibility(View.GoNE);        }    }    public static void startProgressInUiThread(Context context, ICallback iCallback){        ((Activity)context).runOnUiThread(new Runnable() {            @Override            public void run() {                startProgress(context, iCallback);            }        });    }    public static void hideProgressInUiThread(Activity activity){        activity.runOnUiThread(new Runnable() {            @Override            public void run() {                hideProgress();            }        });    }    public interface ICallback{        void progress(int count);    }}

view_progress.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout    xmlns:android="Http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">        <LinearLayout            android:layout_width="match_parent"            android:orientation="vertical"            android:gravity="center"            android:padding="8dp"            android:layout_height="match_parent">            <ProgressBar android:id="@+id/pb_common"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:progress="10"                ></ProgressBar>            <TextView                android:id="@+id/tv_progress"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="0%"/>        </LinearLayout></RelativeLayout>

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