Android 分享功能的实现代码
Android分享功能的实现代码
一个Activity中，取出设备上安装的所有支持分享动作的Activity，在grid中显示。
实例代码：
/**
*分享activity
*/
publicclassNShareActivityextendsAppCompatActivity{
publicfinalstaticStringEXTRA_STR_TO_SHARE="str_to_share1";
privateclassSharedPkgInfo{
StringpkgName;
Drawableicon;
StringappName;
StringactivityClassName;
}
classVhextendsRecyclerView.ViewHolder{
TextViewtv;
ImageViewiv;
publicVh(ViewitemView){
super(itemView);
itemView.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewview){
//点击了某个app的图标，用选择的app分享内容
Intentshare=newIntent(android.content.Intent.ACTION_SEND);
share.setType("text/*");
share.putExtra(Intent.EXTRA_SUBJECT,"分享");
share.putExtra(Intent.EXTRA_TEXT,NShareActivity.this.strToShare);
//share.putExtra(Intent.EXTRA_STREAM,uri);//Optional,justifyouwannashareanimage.
SharedPkgInfopi=sharePkgInfo.get(getAdapterPosition());
share.setClassName(pi.pkgName,pi.activityClassName);
//share.setPackage();
startActivity(share);
}
});
}
}
//获取支持供享的包的信息
ListsharePkgInfo=newArrayList<>();
//要分享出去的文本放在这里
privateStringstrToShare=null;
@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
Intentintent=this.getIntent();
strToShare=intent.getStringExtra(EXTRA_STR_TO_SHARE);
getAllSharePackages();
//将可共享的app图标都放在一个gridview中
RecyclerViewv=newRecyclerView(this);
v.setPadding(16,16,16,16);
GridLayoutManagerlm=newGridLayoutManager(this,4);
v.setLayoutManager(lm);
v.setAdapter(newRecyclerView.Adapter()
{
@Override
publicVhonCreateViewHolder(ViewGroupparent,intviewType){
//必须创建新的viewholder
LinearLayoutv=newLinearLayout(NShareActivity.this);
v.setPadding(8,8,8,8);
Vhvh=newVh(v);
//先创建itemview:上面一个图标，下面一个文本
LinearLayout.LayoutParamslp=newLinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
v.setOrientation(LinearLayout.VERTICAL);
v.setLayoutParams(lp);
ImageViewimgv=newImageView(NShareActivity.this);
imgv.setLayoutParams(newLinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
120));
TextViewtv=newTextView(NShareActivity.this);
tv.setGravity(Gravity.CENTER);
v.addView(imgv);
v.addView(tv);
vh.tv=tv;
vh.iv=imgv;
returnvh;
}
@Override
publicvoidonBindViewHolder(Vhholder,intposition){
//将视图与数据绑定
SharedPkgInfospi=sharePkgInfo.get(position);
holder.tv.setText(spi.appName);
holder.iv.setImageDrawable(spi.icon);
}
@Override
publicintgetItemCount(){
returnsharePkgInfo.size();
}
});
v.setBackgroundColor(Color.WHITE);
this.setContentView(v);
}
//获取所有支持sendAction的包名和图片
voidgetAllSharePackages()
{
Intentshare=newIntent(android.content.Intent.ACTION_SEND);
//分析网站地址的话用这个：
//intent.setType("text/plain");//纯文本
share.setType("text/*");
//getsthelistofintentsthatcanbeloaded.
ListresInfo=getPackageManager().queryIntentActivities(share,0);
if(!resInfo.isEmpty()){
for(ResolveInfoinfo:resInfo){
SharedPkgInfospi=newSharedPkgInfo();
spi.pkgName=info.activityInfo.packageName;
spi.icon=info.loadIcon(getPackageManager());
spi.appName=info.loadLabel(getPackageManager()).toString();
spi.activityClassName=info.activityInfo.name;
sharePkgInfo.add(spi);
//Log.w("shared",spi.pkgName+","+spi.appName+","+info.activityInfo.name);
}
}
}
}
感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！