Question

我遇到问题我在进度条达到100％后无法启动新活动。这是我的代码我在startActivity遇到错误。 Main.java package com.example.hprogressbarexmaple;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.widget.ProgressBar;


public class HProgressBarExmaple extends Activity {
protected static final int MAX_PROGRESS = 100;
protected static final long SLEEP_TIME = 200;
/** Called when the activity is first created. */
ProgressBar myProgressBar;
int myProgress = 0;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    myProgressBar = (ProgressBar) findViewById(R.id.myProgress);
    new Thread(myThread).start();
}

private Runnable myThread = new Runnable() {
    @Override
    public void run() {
        // don't hard code things, use a constant for max progress value
        while (myProgress < MAX_PROGRESS) {
            try {
                myHandle.sendMessage(myHandle.obtainMessage());
                // same
                Thread.sleep(SLEEP_TIME);
            } catch (Exception ex) {
                // never live an empty catch statement, you are missing
                // exceptions and
                // can't correct them
                Log.e("MyCurrentClass",
                        "Error during async data processing", ex);
            }// catch
        }// while
            // start new activity here
        startActivity(HProgressBarExmaple.this, List.class);
    }// met

    Handler myHandle = new Handler() {

        @Override
        public void handleMessage(Message msg) {
            // TODO Auto-generated method stub
            myProgress++;
            myProgressBar.setProgress(myProgress);
        }
    };
};
}

我搜索了很多，但我无法得到解决方案。如果我出错了，请帮助我并纠正我。

Answer 1

尝试这种方式：

Intent intent = new Intent(HProgressBarExmaple.this,List.class);
HProgressBarExmaple.this.startActivity(intent);

不要忘记在List Activity

中添加manifest.xml

进度条达到100％后开始新活动

1 个答案: