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我想改變我的應用程序界面的文本,以便在按下「提交」按鈕之後,「問題1」變成「問題2」,並且對於複選框(即答案改變)相同,此循環繼續,直到Quesiton 4.我可以從我的java類實現這個嗎?因爲我不想爲每個問題創建一個新的界面。這裏是我的應用程序的屏幕截圖:http://imgur.com/owSZu91如何在按下按鈕後更改應用界面的文本?
該應用程序目前是裸機,因爲我只是想學習如何做到這一點。
以下是XML代碼:
<?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:showIn="@layout/activity_question_1" tools:context=".Question_1">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Quesiton 1"
android:id="@+id/textView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Answer A"
android:id="@+id/checkBox"
android:layout_below="@+id/textView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="43dp"
android:checked="false" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Answer B"
android:id="@+id/checkBox2"
android:layout_marginTop="38dp"
android:checked="false"
android:layout_below="@+id/checkBox"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Answer C"
android:id="@+id/checkBox3"
android:checked="false"
android:layout_below="@+id/checkBox2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="35dp" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Answer D"
android:id="@+id/checkBox4"
android:layout_marginTop="37dp"
android:checked="false"
android:layout_below="@+id/checkBox3"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Submit"
android:id="@+id/button"
android:layout_below="@+id/checkBox4"
android:layout_toRightOf="@+id/textView"
android:layout_toEndOf="@+id/textView"
android:layout_marginTop="62dp" />
</RelativeLayout>
以下是Java代碼:
package com.example.user.frat_27th;
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.View;
import android.view.Menu;
import android.view.MenuItem;
public class Question_1 extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_question_1);
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_question_1, 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);
}
}