Question

我正在尝试打开一个镀铬窗口，留出足够的时间播放来自YouTube的剪辑，然后关闭Chrome窗口，所有这些都在C＃中。我对编码比较陌生，而且我很茫然。

package com.jz.myapp1;

import android.app.Activity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity implements View.OnClickListener
{
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        Button b1 = (Button)findViewById(R.id.b1);
        Button b2 = (Button)findViewById(R.id.b2);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Log.i("db", "R.id.b1: " + findViewById(R.id.b1).toString() + " R.id.b2: " + findViewById(R.id.b2));

        //This generates a NullPointerException, so it is commented out
        //Log.i("db", "b1: " + b1.toString() + " b2: " + b2.toString());

        /*
        When this code runs, it is reported that b1 and/or b2 are null,
        despite the fact that they are both defined in activity_main.xml.
        For this reason, the OnClickListner is never set for the buttons.
        What is the problem?
         */
        if ((b1==null) || (b2==null))
        {
            Log.i("db", "b1 and/or b2 are null");
        }
        else
        {
            b1.setOnClickListener(this);
            b2.setOnClickListener(this);
        }
    }

    @Override
    public void onClick(View v)
    {
        TextView tv2 = (TextView)findViewById(R.id.tv2);
        if (v.getId() == R.id.b1)
        {
            tv2.setText("You have chosen Choice #1");
        }
        else if (v.getId() == R.id.b2)
        {
            tv2.setText("You have chosen Choice #2");
        }
    }
}

在Thread.Sleep关闭浏览器窗口而不关闭程序后，我可以添加什么？

Answer 1

p1.CloseMainWindow();
p1.Close();

https://msdn.microsoft.com/en-us/library/system.diagnostics.process.close(v=vs.110).aspx

使用功能打开后关闭浏览器窗口

1 个答案: