Android Open Source - Music-Share-Android Intent Resolver

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License

The source code is released under:
GNU General Public License
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Java Source Code

package com.paperairplane.music.share.utils;
/*from   w  w  w  .  j  a v  a 2 s  .c  o  m*/
import java.util.Iterator;
import java.util.List;

import android.app.AlertDialog;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Resources.NotFoundException;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

import com.paperairplane.music.share.Consts;
import com.paperairplane.music.share.R;
import com.paperairplane.music.share.utils.MyLogger;

/**
 * ?????ActivityChooser
 * 
 * @author Harry Chen (<a href="mailto:chenshengqi1@gmail.com">Harry Chen</a>)
 * @author Xavier Yao (<a href="mailto:xavieryao@me.com">Xavier Yao</a>)
 * @see <a
 *      href="http://www.github.com/PaperAirPlane-Dev-Team/Music-Share-Android">Our
 *      GitHub</a>
 */
public class IntentResolver {
  private Context mCtx;
  private PackageManager mPm;
  private Handler mHandler;
  private AlertDialog intentDialog;

  /**
   * ???????Intent??ResolveInfo???????????????
   * 
   * @param ctx
   *            ???Context
   * @param i
   *            ??????Intent
   * @param handler
   *            ????UI?????Handler
   */
  public void handleIntent(Context ctx, Intent i, Handler handler) {
    mCtx = ctx;
    mHandler = handler;
    boolean isShare = i.hasExtra("artworkUrl");
    mPm = ctx.getPackageManager();
    List<ResolveInfo> info = mPm.queryIntentActivities(i,
        PackageManager.MATCH_DEFAULT_ONLY);
    MyLogger.d(Consts.DEBUG_TAG, "handleIntent");
    // ??????
    Iterator<ResolveInfo> it = info.listIterator();
    String myPackageName = mCtx.getPackageName();
    while (it.hasNext()) {
      ResolveInfo ri = it.next();
      if (ri.activityInfo.packageName.equals(myPackageName)) {
        info.remove(ri);
        break;
        /*
         * ??????????,??List????,Iterator????????
         * ????????,??????????,"?"????????? ????????????????????
         * ???????"M"?????? ???????????? ??????break???????
         */
      }
    }
    if (isShare) {
      // ??SEND???????????????
      ResolveInfo share2weibo = new ResolveInfo();
      share2weibo.icon = R.drawable.weibo_logo;
      share2weibo.labelRes = R.string.share2weibo;
      share2weibo.activityInfo = new ActivityInfo();
      share2weibo.activityInfo.flags = Consts.ShareMeans.INTERNAL;
      info.add(0, share2weibo);
    }
    // ??Intent??
    showDialog(info, i);
  }

  /**
   * ??"???"?????ListView?Adapter
   */
  private class IntentListAdapter extends BaseAdapter {

    List<ResolveInfo> info;

    public IntentListAdapter(List<ResolveInfo> info) {
      this.info = info;
    }

    @Override
    public int getCount() {

      return info.size();
    }

    @Override
    public Object getItem(int position) {

      return info.get(position);
    }

    @Override
    public long getItemId(int position) {

      return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
      View vwItem = LayoutInflater.from(mCtx).inflate(
          R.layout.resolve_list_item, null);
      ImageView ivItemIcon = (ImageView) vwItem.findViewById(R.id.icon);
      TextView tvItemLabel = (TextView) vwItem
          .findViewById(android.R.id.text1);
      TextView tvItemExtended = (TextView) vwItem
          .findViewById(android.R.id.text2);
      // ????????
      Drawable icon;
      String label;
      ResolveInfo ri = info.get(position);
      if (ri.activityInfo.flags != Consts.ShareMeans.INTERNAL) {
        // ??????PackageManager???????

        icon = ri.activityInfo.loadIcon(mPm);
        label = ri.activityInfo.loadLabel(mPm).toString().trim();

      } else {
        // ????????????????
        // ?????????,????????App??????
        // XXX ?????
        try {
          icon = mCtx.getResources().getDrawable(ri.icon);
          label = mCtx.getString(ri.labelRes);
        } catch (NotFoundException e) {
          icon = mCtx.getResources().getDrawable(
              R.drawable.ic_launcher);
          label = mCtx.getString(R.string.app_name);
        }
      }
      ivItemIcon.setImageDrawable(icon);
      tvItemLabel.setText(label);
      tvItemExtended.setVisibility(View.GONE);
      if (Build.VERSION.SDK_INT < 11) {
        tvItemLabel.setTextColor(mCtx.getResources().getColor(
            android.R.color.primary_text_light));
      } else {
        tvItemLabel.setTextColor(mCtx.getResources().getColor(
            android.R.color.primary_text_dark));
      }
      return vwItem;
    }

  }

  /**
   * ??ResolveInfo?List
   * 
   * @param info
   *            ??App????
   * @param i
   *            ????Intent
   */
  private void showDialog(final List<ResolveInfo> info, final Intent i) {
    if (info.size() == 0) {
      new AlertDialog.Builder(mCtx)
          .setMessage(mCtx.getString(R.string.no_app_found))
          .setPositiveButton(mCtx.getString(android.R.string.ok),
              new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog,
                    int which) {
                }
              }).show();
      return;
    } else if (info.size() == 1) {
      Intent intent = generateIntent(i, info.get(0));
      mCtx.startActivity(intent);
      return;
    }

    OnItemClickListener listener = new OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> parent, View view,
          int position, long id) {
        ResolveInfo ri = info.get(position);
        boolean isInternal = (ri.activityInfo.flags == Consts.ShareMeans.INTERNAL);
        if (!isInternal) {
          // ?????????
          Intent intent = generateIntent(i, ri);
          if (ri.activityInfo.packageName.contains("mms")
              || ri.activityInfo.packageName.contains("sms")) {
            intent.putExtra("sms_body",
                intent.getStringExtra(Intent.EXTRA_TEXT));
          }
          mCtx.startActivity(intent);
        } else {
          // ??????????
          Bundle bundle;
          bundle = i.getExtras();
          Message m = mHandler.obtainMessage(
              Consts.Status.SEND_WEIBO, bundle);
          mHandler.sendMessage(m);
        }
        intentDialog.cancel();
        // ?????!?????????
      }

    };
    ListView v = new ListView(mCtx);
    v.setCacheColorHint(0);
    if (Build.VERSION.SDK_INT < 11) {
      // ?????????????????????
      v.setBackgroundColor(mCtx.getResources().getColor(
          android.R.color.primary_text_dark));
    }
    v.setAdapter(new IntentListAdapter(info));
    v.setOnItemClickListener(listener);
    String title = (i.getAction().equals(Intent.ACTION_VIEW)) ? mCtx
        .getString(R.string.how_to_play) : mCtx
        .getString(R.string.how_to_share);
    intentDialog = new AlertDialog.Builder(mCtx).setView(v).setTitle(title)
        .create();
    //??????????????Dialog?,?????????
    //??????????????????,????
    intentDialog.show();
  }

  /**
   * ????ResolveInfo?????Intent
   * 
   * @param i
   *            ???Intent
   * @param ri
   *            ??App????
   * @return
   */
  private Intent generateIntent(final Intent i, ResolveInfo ri) {
    Intent intent = new Intent(i);
    intent.setFlags(intent.getFlags()
        & ~Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
    intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT
        | Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP
        | Intent.FLAG_ACTIVITY_NEW_TASK);

    intent.setComponent(new ComponentName(
        ri.activityInfo.applicationInfo.packageName,
        ri.activityInfo.name));
    return intent;
  }

}
Java Source Code List
