我知道,我看过重复的内容。但他们都没有解决我的问题。
我希望我的代码从EditMessage活动中获取newMessage并将其传递给SendMessage Activity,我知道我可能不需要使用onActivityResult,我仍然想知道这里有什么问题。
我已经添加了日志消息以检查我的问题所在,但它甚至没有在onActivityResult中运行我的日志。
以下是代码:
EditMessageActivity:
public static final String MESSAGE = "message";
EditText currentTextEditText;
Button sendButton;
Button saveButton;
Button cancelButton;
Button concatenateButton;
private String message;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.edit_message_layout);
message = getIntent().getStringExtra(SendMessageActivity.MESSAGE);
currentTextEditText = (EditText) findViewById(R.id.currentText_EditText);
sendButton = (Button) findViewById(R.id.sendButton);
saveButton = (Button) findViewById(R.id.saveButton);
cancelButton = (Button) findViewById(R.id.cancelButton);
concatenateButton = (Button) findViewById(R.id.concatenateButton);
if (message != null) //Activity may be started via "edit" Button
currentTextEditText.setText(message);
currentTextEditText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
message = currentTextEditText.getText().toString();
}
@Override
public void afterTextChanged(Editable s) {
message = currentTextEditText.getText().toString();
}
});
concatenateButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final String[] messages = getResources().getStringArray(R.array.messages_array);
AlertDialog.Builder builder = new AlertDialog.Builder(EditMessage.this);
builder.setTitle("Sonuna Ekle").setItems(messages, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
char lastChar = message.charAt(message.length() - 1);
String messageToAdd = messages[which];
if (lastChar == '!' || lastChar == '?' || lastChar == '.') {
message += " " + messageToAdd;
} else {
message += " " + messageToAdd.toLowerCase();
}
currentTextEditText.setText(message);
dialog.cancel();
}
});
builder.setCancelable(true);
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
});
sendButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(EditMessage.this, NumberSelectActivity.class);
intent.putExtra(MESSAGE, message);
startActivity(intent);
finish();
}
});
saveButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.i("Custom", "Save buttn clicked");
Intent intent = new Intent(EditMessage.this, SendMessageActivity.class);
intent.putExtra(MESSAGE, message);
setResult(RESULT_OK);
startActivityForResult(intent, SendMessageActivity.REQUEST_NEW_MESSAGE);
finish();
Log.i("Custom", "Custom Message created :" + message);
}
});
cancelButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
}
SendMessageActivity:
public static final String MESSAGE = "message";
public static final int REQUEST_NEW_MESSAGE = 1001;
private static String message;
ListView messageListView;
Button createMessage;
ArrayList<String> messageList = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_send_message);
//Retrive Pre-Defined Messages
//TODO Add in-app message defining
String[] dbMessages = getResources().getStringArray(R.array.messages_array);
for (int i = 0; i < dbMessages.length; i++) {
messageList.add(dbMessages[i]);
}
//Create the array adapter
//TODO Upgrade this to a custom adapter which will also show an small image related to the message
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, android.R.id.text1, messageList);
createMessage = (Button) findViewById(R.id.createMessageBtn);
createMessage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startEditMessage("");
}
});
messageListView = (ListView) findViewById(R.id.messagesListView);
messageListView.setAdapter(adapter);
//Make this one clickable
messageListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
message = messageList.get(position);
AlertDialog.Builder builder = new AlertDialog.Builder(SendMessageActivity.this);
builder.setTitle("Send Message");
builder.setMessage(message);
builder.setPositiveButton("Gönder", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(SendMessageActivity.this, NumberSelectActivity.class);
intent.putExtra(MESSAGE, message);
startActivity(intent);
}
});
builder.setNeutralButton("Düzenle", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//TODO Create new activity to edit message and send it or just cancel it
//Todo and return back
startEditMessage(message);
}
});
builder.setNegativeButton("İptal", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
builder.setCancelable(true);
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Log.i("Custom", "Result OK değil :" + message);
if (resultCode == RESULT_OK) {
Log.i("Custom","Result OK:" + message);
if (requestCode == REQUEST_NEW_MESSAGE) {
Log.i("Custom","request is ok :" + message);
String newMessage = getIntent().getStringExtra(EditMessage.MESSAGE);
if (newMessage != null) {
Log.i("Custom","Message is not null :" + message);
messageList.add(newMessage);
//TODO Create new method to load all messages from database and just call that method
ArrayAdapter<String> updatedAdapter = new ArrayAdapter<>(this,
android.R.layout.simple_list_item_1, android.R.id.text1, messageList);
messageListView.setAdapter(updatedAdapter);
Log.i("Custom", "Updated adapter :" + message);
}
}
}
}
public void startEditMessage(String message) {
Intent intent = new Intent(SendMessageActivity.this, EditMessage.class);
intent.putExtra(MESSAGE, message);
startActivity(intent);
}
任何帮助都会受到欢迎。谢谢。
答案 0 :(得分:1)
我希望我的代码从EditMessage活动中获取newMessage并传递它 到SendMessage活动。
假设有三项活动A(MainActivity)
,B(EditMessageActivity)
,C(SendMessageActivity)
。
要从 B 向 A 发送消息,请从 A 中获取startActivityForResult()
。如果在 B 中检索到所需值,则在 B 中setResult()
,然后调用finish()
。
结果将通过覆盖 onActivityResult()在 A 中收到。然后启动 C ,并将值放入intent。
例如,从MainActivity
报告值EditMessageActivity
:
saveButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.i("Custom", "Save buttn clicked");
Intent intent = new Intent();
intent.putExtra(MESSAGE, message);
setResult(RESULT_OK, intent);
finish();
Log.i("Custom", "Custom Message created :" + message);
}
});
如果只有两项活动,则不需要onActivityResult()
。您可以使用SendMessageActivity
直接将邮件传递给Intent
。
例如,在没有MainActivity
的情况下将值从EditMessageActivity
发送到onActivityResult()
:
saveButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.i("Custom", "Save buttn clicked");
Intent intent = new Intent(EditMessageActivity.this, SendMessageActivity.class);
intent.putExtra(MESSAGE, message);
startActivity(intent);
Log.i("Custom", "Custom Message created :" + message);
}
});
答案 1 :(得分:0)
使用
int request = 0;// Any number to identify your request
startActivityForResult(intent,request);
而不是
startActivity(intent);
并且不要使用
完成() ; //来自调用活动的函数,它将从堆栈中删除活动。