android 安装软件进程的框

最新推荐文章于 2025-03-10 00:30:53 发布

原创最新推荐文章于 2025-03-10 00:30:53 发布 · 196 阅读

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本文探讨了前端开发中如何通过优化HTML、CSS、JavaScript等技术，提高网页加载速度和用户体验，包括代码压缩、缓存策略、异步加载、CDN等关键点。

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="${packageName}.${activityClass}" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

    <Button
        android:id="@+id/btnOk"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/textView1"
        android:layout_marginLeft="44dp"
        android:layout_marginTop="85dp"
        android:text="确定" />

</RelativeLayout>

package com.ts.installbardemo;

import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class TSMainActivity extends Activity {

    final int progressdialog=0;
    final int increase=0;
    ProgressDialog pd;
    Handler hd;

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

        Button btnok=(Button)this.findViewById(R.id.btnOk);


        btnok.setOnClickListener(
                new OnClickListener()
                {
                    public void onClick(View v)
                    {
                        showDialog(progressdialog);
                    }

                }
                );

        hd=new Handler()
        {

            @Override
            public void handleMessage(Message msg)
            {

                super.handleMessage(msg);
                switch(msg.what)
                {

                case increase:
                pd.incrementProgressBy(1);
                if(pd.getProgress()>=100)
                {
                    pd.dismiss();
                }
                break;


                }
            }
        };
    }
    @Override
    public Dialog onCreateDialog(int id)
    {

        switch(id)
        {
        case progressdialog:
            pd=new ProgressDialog(this);
            pd.setMax(100);
            pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
            pd.setTitle("title");//title
            pd.setCancelable(false);
            break;
        }
        return pd;

    }
    @Override
    public void onPrepareDialog(int id,Dialog dialog)
    {

        super.onPrepareDialog(id, dialog);
        switch(id)
        {

        case progressdialog:
        pd.incrementProgressBy(-pd.getProgress());
        new Thread()
        {

            public void run()
            {

                while(true)
                {

                    hd.sendEmptyMessage(increase);
                    if(pd.getProgress()>=100)
                    {
                        break;
                    }
                    try
                    {
                        Thread.sleep(40);
                        }
                    catch(Exception e)
                    {
                        e.printStackTrace();
                    }

                }
            }
        }.start();
        break;
        }
    }
}