我尝试将{{1>}和captured image从活动B 返回到活动A text。我遵循此tutorial 1和tutorial 2，但遗憾的是，列表编号已修复。 由于我想动态添加listView但未修复，因此我陷入了某些困境。有人可以帮助我吗？感谢
活动B （将文字和图片返回A）
listView活动A
private void activeTakePhoto() { // open camera
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode,
Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case RESULT_LOAD_IMAGE:
if (requestCode == RESULT_LOAD_IMAGE &&
resultCode == RESULT_OK && null != data) {
......// selecte from gallery
}
case REQUEST_IMAGE_CAPTURE:
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
thumbnail.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
//to generate random file name
String fileName = "tempimg.jpg";
try {
photo = (Bitmap) data.getExtras().get("data");
imageView.setImageBitmap(photo); // image can shown here
} catch (Exception e) {
e.printStackTrace();
}
}
}
submit.setOnClickListener(new View.OnClickListener() { // return image and text to A
@Override
public void onClick(View v) {
Intent returnIntent=new Intent();
amount=Amount.getText().toString();
returnIntent.putExtra("amount", amount);
returnIntent.putExtra("photo",photo);
setResult(Activity.RESULT_OK, returnIntent);
finish();
}
});
PicCustomBaseAdapter （OBJ）
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) { // receive from Activity B and populate ListView A
if (resultCode == RESULT_OK) {
if (requestCode == PROJECT_REQUEST_CODE) {
ReceiveAmount = data.getStringExtra("amount");
ReceiveImage=data.getStringExtra("photo");
if (mClickedPosition == -1) { // if icon clicked
if (obj != null)
obj.addNewItem( ReceiveAmount,ReceiveImage);
} else {
if (obj != null)
obj.changeItem(mClickedPosition,ReceiveAmount, ReceiveImage);
}
}
}
}
最后 ImageAndText
public void addNewItem(String amount, Bitmap imageFromClaims)
{
ImageAndText image = new ImageAndText();
image.setAmount(" Amount : " + amount);
image.setImage(imageFromClaims);
imgAndText.add(image);
this. notifyDataSetChanged();
addOrRemoveFooter();
}
public void changeItem(int m,String amount, Bitmap imageFromClaims)
{
ImageAndText image = new ImageAndText();
image.setAmount(" Amount : " + amount);
image.setImage(imageFromClaims);
imgAndText.set(image);
this. notifyDataSetChanged();
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.custom_image_and_text, null);
holder = new ViewHolder();
holder.txtAmount = (TextView) convertView.findViewById(R.id.ListAmount);
holder.picture=(ImageView)convertView.findViewById(R.id.photo);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.txtAmount.setText(imgAndText.get(position).getAmount());
holder.picture.setImageResource(imgid[imgAndText.get(position).getImageNumber() - 1]);
return convertView;
}
static class ViewHolder {
TextView txtAmount;
ImageView picture;
}
}
我的问题：
private String amount = "";
Bitmap image;
public Bitmap getImage() {
return image;
}
public void setImage(Bitmap image) {
this.image = image;
}
public void setAmount(String amount) {
this.amount = amount;
}
public String getAmount() {
return amount;
}
答案 0 :(得分：1)
我最近制作了这个节目。它包括ListView与图像和文本跳它帮助
MainActivity.java
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String[] favouriteTvShows = {"Pushing Daisies", "Better Off Ted",
"Twin Peaks", "Freaks and Geeks", "Orphan Black", "Walking Dead",
"Breaking Bad", "The 400", "Alphas", "Life on Mars"};
ListAdapter theAdapter = new myAdapter(this, favouriteTvShows);
ListView listView = (ListView) findViewById(R.id.listView);
listView.setAdapter(theAdapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
String tvShowPicked = "You Selected " + String.valueOf(adapterView.getItemAtPosition(position));
Toast.makeText(MainActivity.this, tvShowPicked, Toast.LENGTH_LONG).show();
}
});
}
}
myAdapter.java
class myAdapter extends ArrayAdapter<String>{
public myAdapter(Context context, String[] values) {
super(context, R.layout.row_layout_2, values);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = LayoutInflater.from(getContext());
View theView = inflater.inflate(R.layout.row_layout_2, parent, false);
String tvShows = getItem(position);
TextView textView = (TextView) theView.findViewById(R.id.textView1);
textView.setText(tvShows);
ImageView imageView = (ImageView) theView.findViewById(R.id.imageView1);
imageView.setImageResource(R.drawable.imgg);
return theView;
}
}
activity_main.xml中
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/listView"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
</LinearLayout>
row_layout.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textView1"
android:textSize="30sp"
android:textStyle="bold"
android:padding="15dp"/>
</LinearLayout>
row_layout_2.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="horizontal"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
<ImageView
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="25dp"
android:src="@drawable/imgg"
android:id="@+id/imageView1" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textView1"
android:textSize="30sp"
android:textStyle="bold"
android:padding="15dp"/>
</LinearLayout>