[英]How to link RadioButtons with images in Android Studio
我正在尝试制作一个显示忍者神龟中每个角色名称的应用程序,我制作了4个RadioButton并导入了图片。 每当我运行该应用程序时,它就会崩溃。
XML是:
<RadioGroup
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Leo"
android:id="@+id/leo"
android:checked="false"
android:onClick="pickTurtle"
/>
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/mike"
android:text="Mike"
android:checked="false"
android:onClick="pickTurtle"
android:clickable="true" />
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/raph"
android:text="Raph"
android:checked="false"
android:onClick="pickTurtle"
android:clickable="true" />
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/don"
android:text="Don"
android:checked="false"
android:onClick="pickTurtle"
android:clickable="true" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/a"
android:src="@drawable/a"
android:clickable="true"
android:onClick="info"
/>
<ImageView
android:layout_width="17032dp"
android:layout_height="242dp"
android:id="@+id/b"
android:src="@drawable/b"
android:clickable="true"
android:onClick="info"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/c"
android:src="@drawable/c"
android:clickable="true"
android:onClick="info"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/d"
android:src="@drawable/d"
android:clickable="true"
android:onClick="info"
/>
Java代码是:
public void pickTurtle(View view){
ImageView img = (ImageView) findViewById(R.id.b);
if (view.getId() == R.id.leo) {
img.setImageResource(R.drawable.a);
} else if (view.getId() == R.id.mike) {
img.setImageResource(R.drawable.b);
} else if (view.getId() == R.id.don) {
img.setImageResource(R.drawable.c);
} else if (view.getId() == R.id.raph) {
img.setImageResource(R.drawable.d); } }
从单选按钮中删除android:onClick =“ pickTurtle”
RadioGroup radioGroup = (RadioGroup) findViewById(R.id.radiogroupdid);
radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if (checkedId == R.id.leo) {
img.setImageResource(R.drawable.a);
} else if (checkedId == R.id.mike) {
img.setImageResource(R.drawable.b);
} else if (checkedId == R.id.don) {
img.setImageResource(R.drawable.c);
} else if (checkedId == R.id.raph) {
img.setImageResource(R.drawable.d); } }
}
});
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