我是Android新手，我需要一些帮助。我目前正在开发应用程序。从“日期选择器”对话框中选择日期后，应用程序已停止。 此外，图像视图无法替换为我通过相机捕获的图像，当我从图库中选择图像时，它会返回消息，＆＃34;不幸的是，应用已停止。＆＃34; 有人可以帮我解决吗？非常感谢。
Android Manifest
<?xml version="1.0" encoding="utf-8"?>
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name=".SplashScreen"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainItemList"
android:label="@string/title_activity_main_item_list"></activity>
<activity
android:name=".SmartPantry"
android:label="@string/title_activity_smart_pantry"></activity>
<activity
android:name=".Information"
android:label="@string/title_activity_information"></activity>
<activity
android:name=".AddItem"
android:label="@string/title_activity_add_item"></activity>
</application>
Additem.java
public class AddItem extends ActionBarActivity implements View.OnClickListener {
private ImageView viewImage;
private Button btnImg;
private TextView txtPhoto, txtName, txtCategory,
txtExpDate, txtNotification, txtRemark;
private EditText editName, editDate, editRemark;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_item);
Button btnImg = (Button) findViewById(R.id.btnImg);
ImageView viewImage = (ImageView) findViewById(R.id.viewImage);
EditText editName = (EditText) findViewById(R.id.etItemName);
EditText editDate = (EditText) findViewById(R.id.etExpDate);
EditText editRemark = (EditText) findViewById(R.id.etRemark);
btnImg.setOnClickListener(this);
editDate.setOnClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_add_item, menu);
CreateMenu(menu);
return true;
}
public void onClick(View v) {
if (v.getId() == R.id.btnImg) {
selectImage();
}
if (v.getId() == R.id.etExpDate) {
setExpDate();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
//return super.onOptionsItemSelected(item);
return MenuChoice(item);
}
private void CreateMenu(Menu menu) {
MenuItem menu1 = menu.add(0, 0, 0, "Item 1");
{
menu1.setIcon(R.drawable.save);
menu1.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
}
MenuItem menu2 = menu.add(0, 1, 1, "Item 2");
{
menu2.setIcon(R.drawable.info);
menu2.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
}
}
public boolean MenuChoice(MenuItem item) {
switch (item.getItemId()) {
case 0:
Toast.makeText(this, "Save this into your list", Toast.LENGTH_LONG).show();
return true;
case 1:
Intent intent2 = new Intent(this, Information.class);
startActivity(intent2);
return true;
}
return false;
}
/**
* *********************insert Image's detail******************************
*/
private void selectImage() {
final CharSequence[] options = {"Take Photo", "Choose from Gallery", "Cancel"};
AlertDialog.Builder builder = new AlertDialog.Builder(AddItem.this);
builder.setTitle("Add Photo!");
builder.setItems(options, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int item) {
if (options[item].equals("Take Photo")) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File f = new File(android.os.Environment.getExternalStorageDirectory(), "temp.jpg");
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f));
startActivityForResult(intent, 1);
} else if (options[item].equals("Choose from Gallery")) {
Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, 2);
} else if (options[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == 1) {
File f = new File(Environment.getExternalStorageDirectory().toString());
for (File temp : f.listFiles()) {
if (temp.getName().equals("temp.jpg")) {
f = temp;
break;
}
}
try {
Bitmap bitmap;
BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();
bitmap = BitmapFactory.decodeFile(f.getAbsolutePath(),
bitmapOptions);
viewImage.setImageBitmap(bitmap);
String path = android.os.Environment
.getExternalStorageDirectory()
+ File.separator
+ "Phoenix" + File.separator + "default";
f.delete();
OutputStream outFile = null;
File file = new File(path, String.valueOf(System.currentTimeMillis()) + ".jpg");
try {
outFile = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.JPEG, 85, outFile);
outFile.flush();
outFile.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
} else if (requestCode == 2) {
Uri selectedImage = data.getData();
String[] filePath = {MediaStore.Images.Media.DATA};
Cursor c = getContentResolver().query(selectedImage, filePath, null, null, null);
c.moveToFirst();
int columnIndex = c.getColumnIndex(filePath[0]);
String picturePath = c.getString(columnIndex);
c.close();
Bitmap thumbnail = (BitmapFactory.decodeFile(picturePath));
//Log.w("path of image from gallery......******************.........", picturePath + "");
viewImage.setImageBitmap(thumbnail);
}
}
}
/**
* ************************ set expiry date ******************************
*/
public void setExpDate() {
//To show current date in the datepicker
Calendar cld = Calendar.getInstance();
int mYear = cld.get(Calendar.YEAR);
int mMonth = cld.get(Calendar.MONTH);
int mDay = cld.get(Calendar.DAY_OF_MONTH);
DatePickerDialog mDatePicker;
mDatePicker = new DatePickerDialog(AddItem.this, new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker datepicker, int syear, int smonth, int sday) {
editDate.setText("" + sday + "/" + (smonth + 1) + "/" + syear);
}
}, mYear, mMonth, mDay);
mDatePicker.setTitle("Select Date");
mDatePicker.show();
}//);
}
activity_add_item.xml
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:stretchColumns="2"
android:padding="10dp">
<!--Photo-->
<TableRow
android:paddingTop="5dp"
android:paddingBottom="5dp">
<TextView
android:id="@+id/txtPhoto"
android:layout_margin="10dp"
android:layout_column="1"
android:text="Photo"
android:textSize="18sp"
android:gravity="left"
android:width="50dp" />
<ImageView
android:id="@+id/viewImage"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:src="@drawable/camera"
android:layout_height="100dp"
android:layout_width="100dp"
android:scaleType="fitXY"
android:layout_gravity="left" />
</TableRow>
<TableRow
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Button
android:id="@+id/btnImg"
android:text="Add Photo"
android:layout_column="2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</TableRow>
<!--Name-->
<TableRow
android:paddingTop="5dp"
android:paddingBottom="5dp">
<TextView
android:id="@+id/txtItemName"
android:text="Name"
android:layout_margin="10dp"
android:layout_column="1"
android:textSize="18sp"
android:gravity="left" />
<EditText
android:id="@+id/etItemName"
android:layout_column="2"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_span="2"
android:hint="Name"
android:inputType="textCapWords"
/>
</TableRow>
<!--Category-->
<TableRow
android:paddingTop="5dp"
android:paddingBottom="5dp">
<TextView
android:id="@+id/txtCategory"
android:text="Category"
android:layout_margin="10dp"
android:layout_column="1"
android:textSize="18sp"
android:gravity="left" />
<EditText
android:layout_column="2"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_span="2" />
</TableRow>
<!--Expiry Date-->
<TableRow
android:paddingTop="5dp"
android:paddingBottom="5dp">
<TextView
android:id="@+id/txtExpDate"
android:text="Expiry Date"
android:layout_margin="10dp"
android:layout_column="1"
android:textSize="18sp"
android:gravity="left" />
<EditText
android:id="@+id/etExpDate"
android:layout_column="2"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_span="2" />
</TableRow>
<!--Notification-->
<TableRow
android:paddingTop="5dp"
android:paddingBottom="5dp">
<TextView
android:id="@+id/txtNotification"
android:text="Notification"
android:layout_margin="10dp"
android:layout_column="1"
android:textSize="18sp"
android:gravity="left" />
<ToggleButton
android:id="@+id/toggleNotification"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_span="1" />
</TableRow>
<!--Remark-->
<TableRow
android:paddingTop="5dp"
android:paddingBottom="5dp">
<TextView
android:id="@+id/txtRemark"
android:text="Remark"
android:layout_margin="10dp"
android:layout_column="1"
android:textSize="18sp"
android:gravity="left" />
<EditText
android:id="@+id/etRemark"
android:layout_column="2"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_span="2"
android:hint="Remark"
android:inputType="textMultiLine"/>
</TableRow>