在不活动x分钟后关闭活动

Question

我有一个活动。我想要的是，如果用户处于非活动状态，经过一段时间（用x表示）后，此活动将自动完成。感谢所有的帮助。

我的样本代码：

package com.zilant.testapp;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

public class HelpActivity extends ActionBarActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_help);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_help, menu);
        return true;
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

Answer 1

这里有一个"活动"代码，它将在五秒钟后自动关闭。

public class TestActivity extends ActionBarActivity {

private static final int DELAY = 5000;
public boolean inactive;
Handler mHideHandler = new Handler();
Runnable mHideRunnable = new Runnable() {        
    @Override
    public void run() {            
        if(inactive) {
            finish();
        } else {
            mHideHandler.postDelayed(mHideRunnable, DELAY);
        }
    }
};
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_annotation_test);
    mHideHandler.postDelayed(mHideRunnable, DELAY);
}
}

现在，您所需要做的就是在用户交互之后将inactive变量更改为true。这将取消活动结束并开始新的倒计时。