我想在 RecyclerView.Adapter 中使用onActivityResult。但我不明白这个释放在我的情况下是如何进行的。我有一个动态 RecyclerView.Adapterpublic class SettingsActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.layout_settings); ArrayList<SettingsTypeModel> list= new ArrayList<>(); list.add(new SettingsTypeModel(SettingsTypeModel.TYPE_SEND_TO_MAIL)); list.add(new SettingsTypeModel(SettingsTypeModel.TYPE_SEND_TO_DRIVE)); SettingsRecyclerAdapter adapter = new SettingsRecyclerAdapter(list,this); LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this, OrientationHelper.VERTICAL, false); RecyclerView mRecyclerView = (RecyclerView) findViewById(R.id.recyclerVieww); mRecyclerView.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.VERTICAL)); mRecyclerView.setLayoutManager(linearLayoutManager); mRecyclerView.setItemAnimator(new DefaultItemAnimator()); mRecyclerView.setClickable(true); mRecyclerView.setAdapter(adapter); } public void onActivityResult(final int requestCode, final int resultCode, final Intent data) { super.onActivityResult(requestCode, resultCode, data); } @Override protected void onDestroy() { super.onDestroy(); } @Override public void onBackPressed() { super.onBackPressed(); }}单击switchSendMailReport或 switchDriveReport 后，我需要调用函数onActivityResult。如何在RecyclerView.Adapter中使用onActivityResult？
2 回答
慕运维8079593
TA贡献1876条经验 获得超5个赞
在interface您的SettingsRecyclerAdapter：
public interface OnAdapterResult {
public void onAdapterResult(boolean isChecked);
}
并将接口附加到其构造函数中：
public SettingsRecyclerAdapter (Context context){
mContext = context;
// .. Attach the interface
try{
onAdapterResult = (OnAdapterResult) context;
}catch(ClassCastException ex){
Log.e("MyAdapter","error"+ ex,);
}
}
然后初始化你的接口方法：
((SendToMailTypeViewHolder) holder).switchSendMailReport.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
if (isChecked) {
onAdapterResult.onAdapterResult(isChecked); \\ here
} else {
}
}
});
那么implements您的SettingsActivity来自adepter.OnAdapterResult interface：
public class SettingsActivity extends AppCompatActivity implements adepter.OnAdapterResult {
.
.
.
@Override
public void onAdapterResult(boolean isChecked) {
//
}
}
慕仙森
TA贡献1827条经验 获得超7个赞
您不能在适配器类中使用活动的 onActivityResult() 。但您可以在适配器类中创建自己的相同方法
public void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
// do you stuff
}现在，当您在 onActivityResult() 中回调时，从活动中调用您的适配器方法
if(adapter !=null){
adapter.onActivityResult(requestCode,resultCode,data)
}添加回答
举报
0/150
提交
取消