手写一键分享,分享SDK的起点

上篇写了如何打包成jar

这篇就自己写个自己的jar,想想还有点小激动呢,我咋突然就变得这么吊了,自己都有SDK了.开公司指日可待啊.哈哈哈哈

废话少说,上代码

先上调用,简单的不行,有一个叫R.id.share  的button即可

findViewById(R.id.share).setOnClickListener(new OnClickListener() {public void onClick(View v) {AndroidShare as = new AndroidShare(VersionActivity.this,"蒲公英网址:https://www.pgyer.com/ --此消息来自你的APP"//分享内容);//分享链接as.show();}});

package com.unicom.eom.rm.mobileterminal.platform.activity.version;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;import com.unicom.eom.rm.mobileterminal.platform.R;import android.app.Dialog;
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.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.Color;
import android.graphics.Point;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.util.DisplayMetrics;
import android.util.Patterns;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;public class AndroidShare extends Dialog implements AdapterView.OnItemClickListener {private LinearLayout mLayout;private GridView mGridView;private float mDensity;private String msgText = "分享了...哈哈";private String mImgPath;private int mScreenOrientation;private List mListData;//private List wListData;private Handler mHandler = new Handler();private Runnable work = new Runnable() {public void run() {int orient = getScreenOrientation();if (orient != mScreenOrientation) {if (orient == 0)mGridView.setNumColumns(4);else {mGridView.setNumColumns(6);}mScreenOrientation = orient;((AndroidShare.MyAdapter) mGridView.getAdapter()).notifyDataSetChanged();}mHandler.postDelayed(this, 1000L);}};public AndroidShare(Context context) {super(context, R.style.shareDialogTheme);}public AndroidShare(Context context, int theme, String msgText, final String imgUri) {super(context, theme);this.msgText = msgText;if (Patterns.WEB_URL.matcher(imgUri).matches())new Thread(new Runnable() {public void run() {try {mImgPath = getImagePath(imgUri, getFileCache());} catch (Exception e) {e.printStackTrace();}}}).start();elsethis.mImgPath = imgUri;}public AndroidShare(Context context, String msgText, final String imgUri) {super(context, R.style.shareDialogTheme);this.msgText = msgText;if (Patterns.WEB_URL.matcher(imgUri).matches())new Thread(new Runnable() {public void run() {try {mImgPath = getImagePath(imgUri,getFileCache());} catch (Exception e) {e.printStackTrace();}}}).start();elsethis.mImgPath = imgUri;}public AndroidShare(Context context, String msgText) {super(context, R.style.shareDialogTheme);this.msgText = msgText;}void init(Context context) {DisplayMetrics dm = new DisplayMetrics();dm = context.getResources().getDisplayMetrics();this.mDensity = dm.density;this.mListData = new ArrayList();this.mListData.add(new ShareItem("微信", R.drawable.logo_wechat,"com.tencent.mm.ui.tools.ShareImgUI", "com.tencent.mm"));this.mListData.add(new ShareItem("朋友圈", R.drawable.logo_wechatmoments,"com.tencent.mm.ui.tools.ShareToTimeLineUI", "com.tencent.mm"));this.mListData.add(new ShareItem("qq", R.drawable.logo_qq,"com.tencent.mobileqq.activity.JumpActivity","com.tencent.mobileqq"));this.mListData.add(new ShareItem("qq空间", R.drawable.logo_qzone,"com.qzone.ui.operation.QZonePublishMoodActivity","com.qzone"));this.mListData.add(new ShareItem("新浪微博", R.drawable.logo_sinaweibo,"com.sina.weibo.EditActivity", "com.sina.weibo"));this.mListData.add(new ShareItem("腾讯微博", R.drawable.logo_tencentweibo,"com.tencent.WBlog.intentproxy.TencentWeiboIntent","com.tencent.WBlog"));this.mListData.add(new ShareItem("其他", R.drawable.logo_other,"",""));this.mLayout = new LinearLayout(context);this.mLayout.setOrientation(1);LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(-1, -2);params.leftMargin = ((int) (10.0F * this.mDensity));params.rightMargin = ((int) (10.0F * this.mDensity));this.mLayout.setLayoutParams(params);this.mLayout.setBackgroundColor(Color.parseColor("#D9DEDF"));this.mGridView = new GridView(context);this.mGridView.setLayoutParams(new ViewGroup.LayoutParams(-1, -2));this.mGridView.setGravity(17);this.mGridView.setHorizontalSpacing((int) (10.0F * this.mDensity));this.mGridView.setVerticalSpacing((int) (10.0F * this.mDensity));this.mGridView.setStretchMode(1);this.mGridView.setColumnWidth((int) (90.0F * this.mDensity));this.mGridView.setHorizontalScrollBarEnabled(false);this.mGridView.setVerticalScrollBarEnabled(false);this.mLayout.addView(this.mGridView);}public List queryPackage() {List cns = new ArrayList();Intent i = new Intent("android.intent.action.SEND");i.setType("image/*");List resolveInfo = getContext().getPackageManager().queryIntentActivities(i, 0);for (ResolveInfo info : resolveInfo) {ActivityInfo ac = info.activityInfo;ComponentName cn = new ComponentName(ac.packageName, ac.name);cns.add(cn);}return cns;}public boolean isAvilible(Context context, String packageName) {PackageManager packageManager = context.getPackageManager();List pinfo = packageManager.getInstalledPackages(0);for (int i = 0; i < pinfo.size(); i++) {if (((PackageInfo) pinfo.get(i)).packageName.equalsIgnoreCase(packageName))return true;}return false;}protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);Context context = getContext();init(context);setContentView(this.mLayout);getWindow().setGravity(80);if (getScreenOrientation() == 0) {this.mScreenOrientation = 0;this.mGridView.setNumColumns(4);} else {this.mGridView.setNumColumns(6);this.mScreenOrientation = 1;}this.mGridView.setAdapter(new MyAdapter());this.mGridView.setOnItemClickListener(this);this.mHandler.postDelayed(this.work, 1000L);setOnDismissListener(new DialogInterface.OnDismissListener() {public void onDismiss(DialogInterface dialog) {mHandler.removeCallbacks(work);}});}public void show() {super.show();}public int getScreenOrientation() {int landscape = 0;int portrait = 1;Point pt = new Point();getWindow().getWindowManager().getDefaultDisplay().getSize(pt);int width = pt.x;int height = pt.y;return width > height ? portrait : landscape;}public void onItemClick(AdapterView parent, View view, int position, long id) {ShareItem share = (ShareItem) this.mListData.get(position);shareMsg(getContext(), "分享到...", this.msgText, this.mImgPath, share);}private void shareMsg(Context context, String msgTitle, String msgText,String imgPath, ShareItem share) {if (!share.packageName.isEmpty() && !isAvilible(getContext(), share.packageName)) {Toast.makeText(getContext(), "请先安装" + share.title, Toast.LENGTH_SHORT).show();return;}Intent intent = new Intent("android.intent.action.SEND");if ((imgPath == null) || (imgPath.equals(""))) {intent.setType("text/plain");} else {File f = new File(imgPath);if ((f != null) && (f.exists()) && (f.isFile())) {intent.setType("image/png");intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(f));}}intent.putExtra(Intent.EXTRA_SUBJECT, msgTitle);intent.putExtra(Intent.EXTRA_TEXT, msgText);intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);if(!share.packageName.isEmpty()) {intent.setComponent(new ComponentName(share.packageName,share.activityName));context.startActivity(intent);}else {context.startActivity(Intent.createChooser(intent, msgTitle));}}private File getFileCache() {File cache = null;if (Environment.getExternalStorageState().equals("mounted"))cache = new File(Environment.getExternalStorageDirectory() + "/." + getContext().getPackageName());else {cache = new File(getContext().getCacheDir().getAbsolutePath() + "/." + getContext().getPackageName());}if ((cache != null) && (!cache.exists())) {cache.mkdirs();}return cache;}public String getImagePath(String imageUrl, File cache) throws Exception {String name = imageUrl.hashCode() + imageUrl.substring(imageUrl.lastIndexOf("."));File file = new File(cache, name);if (file.exists()) {return file.getAbsolutePath();}URL url = new URL(imageUrl);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setConnectTimeout(5000);conn.setRequestMethod("GET");conn.setDoInput(true);if (conn.getResponseCode() == 200) {InputStream is = conn.getInputStream();FileOutputStream fos = new FileOutputStream(file);byte[] buffer = new byte[1024];int len = 0;while ((len = is.read(buffer)) != -1) {fos.write(buffer, 0, len);}is.close();fos.close();return file.getAbsolutePath();}return null;}private final class MyAdapter extends BaseAdapter {private static final int image_id = 256;private static final int tv_id = 512;public MyAdapter() {}public int getCount() {return mListData.size();}public Object getItem(int position) {return null;}public long getItemId(int position) {return 0L;}private View getItemView() {LinearLayout item = new LinearLayout(getContext());item.setOrientation(1);int padding = (int) (10.0F * mDensity);item.setPadding(padding, padding, padding, padding);item.setGravity(17);ImageView iv = new ImageView(getContext());item.addView(iv);iv.setLayoutParams(new LinearLayout.LayoutParams(-2, -2));iv.setId(image_id);TextView tv = new TextView(getContext());item.addView(tv);LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(-2, -2);layoutParams.topMargin = ((int) (5.0F * mDensity));tv.setLayoutParams(layoutParams);tv.setTextColor(Color.parseColor("#212121"));tv.setTextSize(16.0F);tv.setId(tv_id);return item;}public View getView(int position, View convertView, ViewGroup parent) {if (convertView == null) {convertView = getItemView();}ImageView iv = (ImageView) convertView.findViewById(image_id);TextView tv = (TextView) convertView.findViewById(tv_id);AndroidShare.ShareItem item = (AndroidShare.ShareItem) mListData.get(position);iv.setImageResource(item.logo);tv.setText(item.title);return convertView;}}private class ShareItem {String title;int logo;String activityName;String packageName;public ShareItem(String title, int logo, String activityName, String packageName) {this.title = title;this.logo = logo;this.activityName = activityName;this.packageName = packageName;}}
}

粘下来就能用,代码很简单了.核心思路就是知道分享到的package,acticity,用intent调用,然后跳到页面,发送消息就可以了

可能迷惑的就是卧槽怎么就自动显示个框,里面有我写的内容?

就是这段代码 intent.putExtra(Intent.EXTRA_SUBJECT, msgTitle);
             intent.putExtra(Intent.EXTRA_TEXT, msgText);

其他的都没啥说的,不懂就粘吧,这是个小demo,想分享图片啥的自行扩展就好.自己慢慢迭代.

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