我尝试从Intent打开纯文本BaseAdapter。不幸的是，应用程序在打开操作Intent时崩溃。
我也试过v.getContext().startActivity()。它仍然无效。
以下是我的代码：
String shareBody = "Here is the share content body";
Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
sharingIntent.putExtra("address", "9898989898");
sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Subject Here");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
sharingIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(Intent.createChooser(sharingIntent, "Inviting Via..."));
收到以下错误消息：
12-30 17:22:07.274 9819-9869/com.example.anupamsarfare.lykke_native_android E/NativeCrypto﹕ ssl=0x626ee910 cert_verify_callback x509_store_ctx=0x61bb0938 arg=0x0
12-30 17:22:07.274 9819-9869/com.example.anupamsarfare.lykke_native_android E/NativeCrypto﹕ ssl=0x626ee910 cert_verify_callback calling verifyCertificateChain authMethod=ECDHE_RSA
12-30 17:22:11.368 9819-9819/com.example.anupamsarfare.lykke_native_android E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.anupamsarfare.lykke_native_android, PID: 9819
android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?
at android.app.ContextImpl.startActivity(ContextImpl.java:1129)
at android.app.ContextImpl.startActivity(ContextImpl.java:1116)
at android.content.ContextWrapper.startActivity(ContextWrapper.java:312)
at com.example.anupamsarfare.lykke_native_android.adapters.FriendsAdapter$1.onClick(FriendsAdapter.java:123)
at android.view.View.performClick(View.java:4474)
at android.view.View$PerformClick.run(View.java:18781)
at android.os.Handler.handleCallback(Handler.java:808)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:824)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640)
at dalvik.system.NativeStart.main(Native Method)
下面是我的整个适配器类：
package com.example.anupamsarfare.lykke_native_android.adapters;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.Filter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.toolbox.ImageLoader;
import com.android.volley.toolbox.NetworkImageView;
import com.example.anupamsarfare.lykke_native_android.AppController;
import com.example.anupamsarfare.lykke_native_android.MainActivity;
import com.example.anupamsarfare.lykke_native_android.R;
import com.example.anupamsarfare.lykke_native_android.activities.Otp;
import com.example.anupamsarfare.lykke_native_android.models.ContactModel;
import java.util.ArrayList;
import java.util.List;
/**
* Created by pratikgadekar on 12/30/15.
*/
public class FriendsAdapter extends BaseAdapter {
private static final int TYPE_ITEM = 0;
private static final int TYPE_SEPARATOR = 1;
private Context context;
private List<ContactModel> mData;
private LayoutInflater mInflater;
private ImageLoader mImageLoader;
List<ContactModel> mStringFilterList;
ValueFilter valueFilter;
public FriendsAdapter(Context context, List<ContactModel> mData) {
this.context = context;
this.mData = mData;
this.mStringFilterList = mData;
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public void addItem(ContactModel contactModel) {
mData.add(contactModel);
notifyDataSetChanged();
}
@Override
public int getCount() {
return mData.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return mData.indexOf(getItem(position));
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (mImageLoader == null) {
mImageLoader = AppController.getInstance().getImageLoader();
}
if (convertView == null) {
convertView = mInflater.inflate(R.layout.friends_item, null);
}
TextView externalId = (TextView) convertView.findViewById(R.id.externalId);
NetworkImageView avatar = (NetworkImageView) convertView.findViewById(R.id.avatar);
TextView username = (TextView) convertView.findViewById(R.id.username);
Button invite = (Button) convertView.findViewById(R.id.invite);
ContactModel currentData = mData.get(position);
externalId.setText(currentData.getExternalId());
username.setText(currentData.getPhoneBookName());
if (!currentData.getPictureUrl().isEmpty()) {
avatar.setImageUrl(currentData.getPictureUrl(), mImageLoader);
} else {
avatar.setDefaultImageResId(R.drawable.user_default);
}
if (currentData.getStatus() == 1) {
invite.setVisibility(View.VISIBLE);
} else {
invite.setVisibility(View.INVISIBLE);
}
invite.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String shareBody = "Here is the share content body";
Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
sharingIntent.putExtra("address", "9892781009");
sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Subject Here");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
sharingIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if(v.getContext()!=null)
v.getContext().startActivity(Intent.createChooser(sharingIntent, "Inviting Via..."));
}
});
return convertView;
}
public Filter getFilter() {
if (valueFilter == null) {
valueFilter = new ValueFilter();
}
return valueFilter;
}
public class ValueFilter extends Filter {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults();
if (constraint != null && constraint.length() > 0) {
List<ContactModel> filterList = new ArrayList<ContactModel>();
for (int i = 0; i < mStringFilterList.size(); i++) {
if ((mStringFilterList.get(i).getPhoneBookName().toUpperCase())
.contains(constraint.toString().toUpperCase())) {
ContactModel contact = new ContactModel(mStringFilterList.get(i)
.getId(),
mStringFilterList.get(i).getExternalId(),
mStringFilterList.get(i).getPhone(),
mStringFilterList.get(i).getPhoneBookName(),
mStringFilterList.get(i).getPictureUrl(),
mStringFilterList.get(i).getStatus(),
mStringFilterList.get(i).getIsDirty(),
mStringFilterList.get(i).getRecentTransaction());
filterList.add(contact);
}
}
results.count = filterList.size();
results.values = filterList;
} else {
results.count = mStringFilterList.size();
results.values = mStringFilterList;
}
return results;
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
mData = (ArrayList<ContactModel>) results.values;
notifyDataSetChanged();
}
}
}
答案 0 :(得分：2)
您可能通过在构造函数中传递getApplicationContext()而不是getActivity()来初始化适配器。将其更改为getActivity()然后您应该可以致电：
context.startActivity(Intent.createChooser(sharingIntent, "Inviting Via..."));
此外，您不需要在适配器中保留LayoutInflater，它应该是getView()的本地变量。
答案 1 :(得分：1)
<强>定义
Activity activity;
像这样传递意图。您需要使用的任何地方。
Intent i = new Intent(activity, ABC.class);
i.putExtra("Name", "value");
activity.startActivity(i);