I created an activity with radio button On and Off. When the user click on On the image appears and with Off the image disappear. Everything works fine but when the user accidentally click on the image the app will stop working. There is no on-click function with the image. Please see the code below. XML file:
<RelativeLayout xmlns:android="http://ift.tt/nIICcg"
xmlns:tools="http://ift.tt/LrGmb4" 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"
tools:context="com.example.android.Recipe3"
android:onClick="Home"
android:clickable="true">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Beth's Spicy Oatmeal"
android:id="@+id/textView6"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="1/2 cup butter, softened"
android:id="@+id/textView22"
android:layout_below="@+id/textView6"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="1 cup packed light brown sugar"
android:id="@+id/textView23"
android:layout_below="@+id/textView22"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="1 1/2 cups all-purpose flour"
android:id="@+id/textView24"
android:layout_below="@+id/textView23"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="3 cups rolled oats"
android:id="@+id/textView25"
android:layout_below="@+id/textView24"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="1 teaspoon ground cinnamon"
android:id="@+id/textView26"
android:layout_below="@+id/textView25"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Home"
android:id="@+id/button9"
android:layout_below="@+id/textView26"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:clickable="true"
android:enabled="true"
android:onClick="HomePage" />
<RadioGroup
android:layout_width="120dp"
android:layout_height="49dp"
android:orientation="horizontal"
android:id="@+id/radioGroup2"
android:layout_alignTop="@+id/button9"
android:layout_toRightOf="@+id/textView23"
android:layout_toEndOf="@+id/textView23">
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="On"
android:id="@+id/radioButton8"
android:checked="true"
android:button="@android:drawable/btn_radio"
android:enabled="true" />
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Off"
android:id="@+id/radioButton9"
android:layout_gravity="center_horizontal"
android:checked="false"
android:button="@android:drawable/btn_radio"
android:enabled="true"
android:clickable="true" />
</RadioGroup>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Image"
android:id="@+id/textView27"
android:layout_alignBaseline="@+id/button9"
android:layout_alignBottom="@+id/button9"
android:layout_toLeftOf="@+id/radioGroup2"
android:layout_toStartOf="@+id/radioGroup2" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageView3"
android:src="@drawable/beth"
android:layout_alignParentRight="false"
android:layout_alignParentEnd="false"
android:layout_below="@+id/radioGroup2"
android:layout_marginBottom="-30dp" />
</RelativeLayout>
Java code:
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ImageView;
import android.widget.RadioGroup;
public class Recipe3 extends ActionBarActivity {
ImageView imageView3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_recipe3);
imageView3 = (ImageView) findViewById(R.id.imageView3);
RadioGroup radioGroup = (RadioGroup) findViewById(R.id.radioGroup2);
radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if (checkedId == R.id.radioButton8) {
imageView3.setVisibility(View.VISIBLE);
} else if (checkedId == R.id.radioButton9) {
imageView3.setVisibility(View.GONE);
}
}
});
}
@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_recipe3, 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);
}
public void HomePage(View v){
Intent intent=new Intent(v.getContext(),Login.class);
startActivity(intent);
}}
