android中关于图片分享到QQ或者微信 朋友圈及其他（免SDK）

最近又做了一个关于图片分享到朋友圈的一个小功能，起先想到的是要添加比如QQ 或者微信以及其他工具的API，但是很麻烦，还要申请一些乱七八糟的东西并且得通过，才能用。

于是就在网上找一些关于图片分享的资料，仅供参考（亲测可用），，仅限图片的分享，但是免去了上面所说的那些繁琐的过程。话不多说，如下：

import java.io.File;import java.io.FileOutputStream;import java.io.InputStream;import .HttpURLConnection;import .URL;import java.util.ArrayList;import java.util.List;import android.annotation.SuppressLint;import android.annotation.TargetApi;import android.app.Dialog;import ponentName;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 .Uri;import android.os.Build;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;@SuppressLint("NewApi")public class AndroidShare extends Dialog implements AdapterView.OnItemClickListener {private LinearLayout mLayout;private GridView mGridView;private float mDensity;private String msgText = "共享";private String mImgPath;private int mScreenOrientation;private List<ShareItem> mListData;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;}void init(Context context) {DisplayMetrics dm = new DisplayMetrics();dm = context.getResources().getDisplayMetrics();this.mDensity = dm.density;this.mListData = new ArrayList<ShareItem>();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("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<ComponentName> queryPackage() {List<ComponentName> cns = new ArrayList<ComponentName>();Intent i = new Intent("android.intent.action.SEND");i.setType("image/*");List<ResolveInfo> 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<PackageInfo> 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(), "共享", this.msgText, this.mImgPath, share);}@SuppressLint("NewApi")@TargetApi(Build.VERSION_CODES.GINGERBREAD)private void shareMsg(Context context, String msgTitle, String msgText,String imgPath, ShareItem share) {if (!share.packageName.isEmpty() && !isAvilible(getContext(), share.packageName)) {Toast.makeText(getContext(), "未安装" + 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;}}

在界面的分享功能添加事件

AndroidShare as = new AndroidShare(MainActivity.this,"测试分享",pathString+name);as.show();

最后，记得要在清单文件中添加一些权限

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/><uses-permission android:name="android.permission.INTERNET" /><uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />