我在我的 Activity 布局中包含了一个名为“btnConfirm”的按钮，并在下面的代码中引用了它(mConfirm)，但是，当单击该按钮时，不会触发任何操作。我什至查看了 logcat，单击按钮后没有显示新消息。下面的代码显示了按钮应该触发的操作 - 传输用户输入的信息进行解析，并将用户重定向到另一个 Activity 页面。
如果您需要任何说明，请告诉我。 提前致谢。
public class ProfileCreation extends Activity {
private static final int RESULT_LOAD_IMAGE = 1;
FrameLayout layout;
Button save;
protected EditText mName;
protected EditText mAge;
protected EditText mHeadline;
protected Button mConfirm;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile_creation);
Parse.initialize(this, "ID", "ID");
mName = (EditText)findViewById(R.id.etxtname);
mAge = (EditText)findViewById(R.id.etxtage);
mHeadline = (EditText)findViewById(R.id.etxtheadline);
mConfirm = (Button)findViewById(R.id.btnConfirm);
mConfirm.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String name = mName.getText().toString();
String age = mAge.getText().toString();
String headline = mHeadline.getText().toString();
age = age.trim();
name = name.trim();
headline = headline.trim();
if (age.isEmpty() || name.isEmpty() || headline.isEmpty()) {
AlertDialog.Builder builder = new AlertDialog.Builder(ProfileCreation.this);
builder.setMessage(R.string.signup_error_message)
.setTitle(R.string.signup_error_title)
.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}
else {
// create the new user!
setProgressBarIndeterminateVisibility(true);
ParseUser currentUser = ParseUser.getCurrentUser();
currentUser.put("name", name);
currentUser.put("age", age);
currentUser.put("headline", headline);
currentUser.saveInBackground(new SaveCallback() {
@Override
public void done(ParseException e) {
setProgressBarIndeterminateVisibility(false);
if (e == null) {
// Success!
Intent intent = new Intent(ProfileCreation.this, MoodActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
}
else {
AlertDialog.Builder builder = new AlertDialog.Builder(ProfileCreation.this);
builder.setMessage(e.getMessage())
.setTitle(R.string.signup_error_title)
.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}
}
});
}
}
});
setContentView(R.layout.activity_profile_creation);
save = (Button) findViewById(R.id.button2);
String picturePath = PreferenceManager.getDefaultSharedPreferences(this).getString("picturePath", "");
if (!picturePath.equals("")) {
ImageView imageView = (ImageView) findViewById(R.id.profilePicturePreview);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
SeekBar seekBar = (SeekBar) findViewById(R.id.seekBarDistance);
final TextView seekBarValue = (TextView) findViewById(R.id.seekBarDistanceValue);
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
seekBarValue.setText(String.valueOf(progress));
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
}); // Add this
SeekBar seekBarMinimum = (SeekBar) findViewById(R.id.seekBarMinimumAge);
final TextView txtMinimum = (TextView) findViewById(R.id.tMinAge);
seekBarMinimum.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
txtMinimum.setText(String.valueOf(progress));
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
}); // Add this
SeekBar seekBarMaximum = (SeekBar) findViewById(R.id.seekBarMaximumAge);
final TextView txtMaximum = (TextView) findViewById(R.id.tMaxAge);
seekBarMaximum.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
txtMaximum.setText(String.valueOf(progress));
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
}); // Add this
Button buttonLoadImage = (Button) findViewById(R.id.btnPictureSelect);
buttonLoadImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
Intent i = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
save.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// Locate the image in res >
Bitmap bitmap = BitmapFactory.decodeFile("picturePath");
// Convert it to byte
ByteArrayOutputStream stream = new ByteArrayOutputStream();
// Compress image to lower quality scale 1 - 100
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
Object image = null;
try {
String path = null;
image = readInFile(path);
} catch (Exception e) {
e.printStackTrace();
}
// Create the ParseFile
ParseFile file = new ParseFile("picturePath", (byte[]) image);
// Upload the image into Parse Cloud
file.saveInBackground();
// Create a New Class called "ImageUpload" in Parse
ParseObject imgupload = new ParseObject("Image");
// Create a column named "ImageName" and set the string
imgupload.put("Image", "picturePath");
// Create a column named "ImageFile" and insert the image
imgupload.put("ImageFile", file);
// Create the class and the columns
imgupload.saveInBackground();
// Show a simple toast message
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK
&& null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
ImageView imageView = (ImageView) findViewById(R.id.profilePicturePreview);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
}
private byte[] readInFile(String path) throws IOException {
// TODO Auto-generated method stub
byte[] data = null;
File file = new File(path);
InputStream input_stream = new BufferedInputStream(new FileInputStream(
file));
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
data = new byte[16384]; // 16K
int bytes_read;
while ((bytes_read = input_stream.read(data, 0, data.length)) != -1) {
buffer.write(data, 0, bytes_read);
}
input_stream.close();
return buffer.toByteArray();
}
}
xml代码
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/dark_texture_blue" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="797dp"
android:gravity="center"
android:orientation="vertical" >
<com.mikhaellopez.circularimageview.CircularImageView
android:id="@+id/profilePicturePreview"
android:layout_width="132dp"
android:layout_height="120dp"
android:layout_below="@+id/textView5"
android:layout_centerHorizontal="true"
android:layout_marginTop="7dp"
android:alpha="1" />
<Button
android:id="@+id/button2"
android:layout_width="120dp"
android:layout_height="60dp"
android:layout_above="@+id/etxtage"
android:layout_alignLeft="@+id/etxtname"
android:alpha="0.8"
android:background="#330099"
android:text="Upload from Facebook"
android:textColor="#ffffff"
android:textSize="17sp"
android:textStyle="bold" />
<Button
android:id="@+id/btnPictureSelect"
android:layout_width="118dp"
android:layout_height="60dp"
android:layout_alignRight="@+id/etxtname"
android:layout_below="@+id/profilePicturePreview"
android:layout_marginRight="8dp"
android:alpha="0.8"
android:background="#000000"
android:onClick="pickPhoto"
android:text="Select photo from gallery"
android:textColor="#ffffff"
android:textSize="17sp"
android:textStyle="bold" />
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView4"
android:layout_centerHorizontal="true"
android:layout_marginTop="9dp"
android:text="Preferred Name"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#ADD8E6"
android:textSize="20sp"
android:textStyle="bold"
android:typeface="serif" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="39dp"
android:gravity="center"
android:text="Profile Creation"
android:textColor="#ffffff"
android:textSize="28sp"
android:textStyle="bold"
android:typeface="serif" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/button2"
android:layout_centerHorizontal="true"
android:layout_marginTop="14dp"
android:text="Age"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#ADD8E6"
android:textSize="20sp"
android:textStyle="bold"
android:typeface="serif" />
<EditText
android:id="@+id/etxtage"
android:layout_width="230dp"
android:layout_height="wrap_content"
android:layout_below="@+id/btnPictureSelect"
android:layout_centerHorizontal="true"
android:layout_marginTop="35dp"
android:ems="10"
android:hint="Please type your age here"
android:inputType="number"
android:maxLength="2"
android:textAlignment="center"
android:textColor="#f2f2f2"
android:textSize="18dp" />
<EditText
android:id="@+id/etxtname"
android:layout_width="250dp"
android:layout_height="wrap_content"
android:layout_below="@+id/textView6"
android:layout_centerHorizontal="true"
android:ems="10"
android:enabled="true"
android:hint="Please type your name here"
android:inputType="textPersonName"
android:textColor="#ffffff"
android:textSize="18sp" />
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/etxtname"
android:layout_centerHorizontal="true"
android:layout_marginTop="8dp"
android:text="Upload your Profile Picture"
android:textColor="#f2f2f2"
android:textSize="18sp"
android:textStyle="bold"
android:typeface="sans" />
<RadioGroup
android:id="@+id/radioGroup1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_toLeftOf="@+id/textView3" >
<RadioButton
android:id="@+id/radio0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:textColor="#f2f2f2"
android:text="Male" />
<RadioButton
android:id="@+id/radio1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#f2f2f2"
android:text="Female" />
</RadioGroup>
<SeekBar
android:id="@+id/seekBarDistance"
android:layout_width="250dp"
android:progress="50"
android:layout_centerHorizontal="true"
android:layout_height="wrap_content"
android:layout_below="@+id/textView12"
android:layout_marginTop="11dp" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView5"
android:layout_below="@+id/etxtheadline"
android:layout_marginTop="38dp"
android:text="I am a"
android:textColor="#ADD8E6"
android:textSize="20sp"
android:textStyle="bold" />
<RadioGroup
android:id="@+id/radioGroup3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView4"
android:layout_alignTop="@+id/radioGroup2"
android:layout_marginTop="10dp" >
</RadioGroup>
<RadioGroup
android:id="@+id/radioGroup2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/etxtheadline"
android:layout_below="@+id/textView2" >
<RadioButton
android:id="@+id/radio0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="Male"
android:textColor="#f2f2f2" />
<RadioButton
android:id="@+id/radio1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Female"
android:textColor="#f2f2f2" />
</RadioGroup>
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/textView1"
android:layout_alignBottom="@+id/textView1"
android:layout_alignRight="@+id/radioGroup2"
android:text="Looking for"
android:textColor="#ADD8E6"
android:textSize="20sp"
android:textStyle="bold" />
<SeekBar
android:id="@+id/seekBarMinimumAge"
android:layout_width="220dp"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView1"
android:layout_below="@+id/textView7"
android:layout_marginTop="11dp"
android:progress="25" />
<TextView
android:id="@+id/textView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/etxtage"
android:layout_centerHorizontal="true"
android:layout_marginTop="20dp"
android:text="Minimum Age Looking For"
android:textColor="#f2f2f2"
android:textSize="16sp"
android:textStyle="bold"
android:typeface="serif" />
<EditText
android:id="@+id/etxtheadline"
android:layout_width="270dp"
android:layout_height="70dp"
android:layout_alignLeft="@+id/button2"
android:layout_below="@+id/textView8"
android:ems="10"
android:hint="A quick description of yourself"
android:singleLine="true"
android:textAlignment="center"
android:textColor="#f2f2f2"
android:textSize="18dp" >
<requestFocus />
</EditText>
<TextView
android:id="@+id/seekBarDistanceValue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/tMinAge"
android:layout_below="@+id/seekBarDistance"
android:text="50"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#f2f2f2"
android:textSize="20sp"
android:textStyle="bold"
android:typeface="serif" />
<TextView
android:id="@+id/textView12"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/radioGroup1"
android:layout_centerHorizontal="true"
android:layout_marginTop="19dp"
android:text="Search Distance (100KM)"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#ADD8E6"
android:textSize="20sp"
android:textStyle="bold"
android:typeface="serif" />
<TextView
android:id="@+id/tMinAge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/seekBarMinimumAge"
android:layout_centerHorizontal="true"
android:text="25"
android:textColor="#f2f2f2"
android:textSize="18sp" />
<TextView
android:id="@+id/textView8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/tMaxAge"
android:layout_centerHorizontal="true"
android:layout_marginTop="15dp"
android:text="Headline"
android:textColor="#ADD8E6"
android:textSize="20sp"
android:textStyle="bold"
android:typeface="serif" />
<TextView
android:id="@+id/textView14"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/tMinAge"
android:layout_centerHorizontal="true"
android:layout_marginTop="15dp"
android:text="Maximum Age Looking For"
android:textColor="#f2f2f2"
android:textSize="16sp"
android:textStyle="bold"
android:typeface="serif" />
<SeekBar
android:id="@+id/seekBarMaximumAge"
android:layout_width="221dp"
android:progress="50"
android:layout_centerHorizontal="true"
android:layout_height="wrap_content"
android:layout_below="@+id/textView14"
android:layout_marginTop="11dp" />
<TextView
android:id="@+id/tMaxAge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/seekBarMaximumAge"
android:layout_centerHorizontal="true"
android:text="50"
android:textColor="#f2f2f2"
android:textSize="18sp" />
<CheckBox
android:id="@+id/checkBox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView16"
android:layout_centerHorizontal="true"
android:text="I agree to the terms and Conditions"
android:textColor="#D2D2D2"
android:textColorHint="#ffffff" />
<TextView
android:id="@+id/textView16"
android:layout_width="280dp"
android:layout_height="40dp"
android:layout_alignLeft="@+id/checkBox1"
android:layout_below="@+id/seekBarDistanceValue"
android:layout_marginTop="14dp"
android:gravity="center"
android:text="Click here to review the terms and conditions"
android:textColor="#99CCFF"
android:textSize="16sp" />
<Button
android:id="@+id/btnReset"
android:layout_width="120dp"
android:layout_height="60dp"
android:layout_marginBottom="7dp"
android:layout_below="@+id/checkBox1"
android:layout_toLeftOf="@+id/btnPictureSelect"
android:alpha="0.8"
android:background="#660000"
android:layout_marginTop="14dp"
android:text="Reset"
android:textColor="#ffffff"
android:textSize="17sp"
android:textStyle="bold" />
<Button
android:id="@+id/btnConfirm"
android:layout_width="120dp"
android:layout_height="60dp"
android:layout_below="@+id/checkBox1"
android:layout_toRightOf="@+id/seekBarDistanceValue"
android:alpha="0.8"
android:layout_marginTop="14dp"
android:layout_marginBottom="7dp"
android:background="#330099"
android:text="Confirm"
android:textColor="#ffffff"
android:textSize="17sp"
android:textStyle="bold" />
</RelativeLayout>
</ScrollView>
最佳答案
正如我在您的代码中看到的那样..您设置了相同的内容 View setContentView(R.layout.activity_profile_creation); 两次..
第一个(完美):
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile_creation);`
第二个(产生问题):就在保存按钮
setContentView(R.layout.activity_profile_creation);
save = (Button) findViewById(R.id.button2);
删除第二个，即保存按钮之前的一个。
关于java - 按钮无 react ，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25105494/