Я пытаюсь создать приложение, которое при нажатии кнопки изменяет отображаемый текст. Однако это не сработает. Я проверил свой код, бит, я не вижу ничего плохого в моем обработчике событий. Вот мой код:Моя кнопка приложения не работает
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Reference Button
Button ekeButton = (Button)findViewById(R.id.ekeButton);
ekeButton.setOnClickListener(
new View.OnClickListener() {
public void onClick(View view) {
TextView displayText = (TextView) findViewById(R.id.displayText);
displayText.setText(R.string.NewMassage);
}
}
);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
@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_main, menu);
return true;
}
@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);
}
}
Вот мой обновленный код:
package com.mesoft.eventhandler;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Reference Button
Button ekeButton = (Button)findViewById(R.id.ekeButton);
final TextView displayText = (TextView) findViewById(R.id.displayText);
ekeButton.setOnClickListener(
new View.OnClickListener() {
public void onClick(View view) {
displayText.setText(getString(R.string.NewMassage));
}
}
);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
@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_main, menu);
return true;
}
@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);
}
}
и я объявил мою строку в моей string.xml Вот код:
<resources>
<string name="app_name">Event Handler</string>
<string name="action_settings">Settings</string>
<string name="click">Choose Massage</string>
<string name="ShowMassage">Merry Xmas</string>
<string name="NewMassage">Happy new year</string>
</resources>
здесь activity_main.xml код:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto" 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:paddingBottom="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".MainActivity"
tools:showIn="@layout/activity_main">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/ShowMassage"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="90dp"
android:id="@+id/displayText" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/click"
android:id="@+id/ekeButton"
android:layout_marginTop="74dp"
android:enabled="false"
android:layout_below="@+id/displayText"
android:layout_alignLeft="@+id/displayText"
android:layout_alignStart="@+id/displayText"
android:textColor="#090909" />
</RelativeLayout>
Какую ошибку вы получите за пределами? (если есть) –
Используйте 'getResources(). getString (R.string.NewMassage)' вместо 'getString (R.string.NewMassage)' – Piyush
удалите 'android: enabled =" false "' из вашего '