Java 如何在“主页”按钮上向上滑动打开滑动抽屉

我正在开发一个应用程序，当你按下home（主页）按钮时，应用程序就会打开。我已经做了所有其他的事情，下注的代码，以完成打开对刷上主按钮的一部分。我该怎么做？ 任何帮助都将是惊人的

如果需要，下面是我的java代码：

package com.d4a.toolbelt;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;

public class QuickLaunch extends Activity {

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

     /** Called when the user clicks the  music button */
     public void music(View view) {
         Intent intent = new Intent("android.intent.action.MUSIC_PLAYER");
         startActivity(intent);


     }





/** Called when the user clicks the play button */
public void play(View view) {
    Intent launchIntent = getPackageManager().getLaunchIntentForPackage("com.android.vending");
    startActivity(launchIntent);
    }



/** Called when the user clicks the web button */
public void web(View view) {
    Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://google.com/"));
      startActivity(browserIntent);

}

       /** Called when the user clicks the email button */
public void email(View view) {
     Intent intent = getPackageManager().getLaunchIntentForPackage("com.android.email");
     startActivity(intent);

} 

/** Called when the user clicks the sms button */
public void chat(View view) {
    Intent intent = new Intent(Intent.ACTION_MAIN);
 intent.setComponent(new ComponentName("com.d4a.sms","de.ub0r.android.smsdroid.ConversationListActivity"));
 intent.putExtra("grace", "Hi");
 startActivity(intent);


}


/** Called when the user clicks the settings button */
public void settings(View view) {
     Intent intent = getPackageManager().getLaunchIntentForPackage("com.android.settings");
     startActivity(intent);

}




/** Called when the user clicks the camara button */
public void cam(View view) {
    Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
    startActivityForResult(intent, 0);

}

/** Called when the user clicks the video camara button */
public void video_cam(View view) {
    Intent intent = new Intent("android.media.action.VIDEO_CAPTURE");
    startActivityForResult(intent, 0);

}
}

---

提前万分感谢各位

我发现您需要清单中的这行代码：

 <intent-filter>
            <action android:name="android.intent.action.ASSIST" />
            <category android:name="android.intent.category.DEFAULT"/>
        </intent-filter>

多亏HomeLauncher是开源的，我得到了我的答案，我希望这能帮助站在我立场上的其他人