java - 检查ImageView是否等于输入点击

问题描述

我想创建一个 Android 应用程序（使用 Android Studio），用户将看到我在数组中生成的随机图像。然后，他们必须从与显示的随机图像相对应的水平滚动视图中选择正确的图像。但是，我似乎无法编写正确的代码来检查用户是否单击了正确的相应图像。我正在使用 if 语句。

这是我的 activity_main.xml：

<HorizontalScrollView
    android:layout_width="wrap_content"
    android:layout_height="205dp"
    android:layout_alignParentStart="true"
    android:layout_alignParentBottom="true"
    android:layout_marginBottom="54dp">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

        <ImageView
            android:id="@+id/face_with_tears_of_joy"
            android:layout_width="50dp"
            android:layout_height="55dp"
            android:layout_marginLeft="5dp"
            android:contentDescription="@string/funny_emoji"
            android:onClick="clickedFaceWithTearsOfJoy"
            android:clickable="true"
            app:srcCompat="@drawable/face_with_tears_of_joy" />

        <ImageView
            android:id="@+id/grinning_face"
            android:layout_width="50dp"
            android:layout_height="55dp"
            android:layout_marginLeft="5dp"
            android:contentDescription="@string/funny_emoji"
            android:onClick="clickedGrinningFace"
            android:clickable="true"
            app:srcCompat="@drawable/grinning_face" />

        <ImageView
            android:id="@+id/grinning_face_with_smiling_eyes"
            android:layout_width="50dp"
            android:layout_height="55dp"
            android:layout_marginLeft="5dp"
            android:clickable="true"
            android:contentDescription="@string/funny_emoji"
            android:onClick="clickedGrinningFaceWithSmilingEyes"
            app:srcCompat="@drawable/grinning_face_with_smiling_eyes" />

        <ImageView
            android:id="@+id/rolling_on_the_floor_laughing"
            android:layout_width="50dp"
            android:layout_height="55dp"
            android:layout_marginLeft="5dp"
            android:contentDescription="@string/funny_emoji"
            app:srcCompat="@drawable/rolling_on_the_floor_laughing" />

        <ImageView
            android:id="@+id/smiling_face_with_open_mouth"
            android:layout_width="50dp"
            android:layout_height="55dp"
            android:layout_marginLeft="5dp"
            android:contentDescription="@string/funny_emoji"
            app:srcCompat="@drawable/smiling_face_with_open_mouth" />

        <ImageView
            android:id="@+id/smiling_face_with_open_mouth_and_cold_sweat"
            android:layout_width="50dp"
            android:layout_height="55dp"
            android:layout_marginLeft="5dp"
            android:contentDescription="@string/funny_emoji"
            app:srcCompat="@drawable/smiling_face_with_open_mouth_and_cold_sweat" />

        <ImageView
            android:id="@+id/smiling_face_with_open_mouth_and_smiling_eyes"
            android:layout_width="50dp"
            android:layout_height="55dp"
            android:layout_marginLeft="5dp"
            android:contentDescription="@string/funny_emoji"
            app:srcCompat="@drawable/smiling_face_with_open_mouth_and_smiling_eyes" />




    </LinearLayout>
</HorizontalScrollView>

这是我的 MainActivity.java：

public class MainActivity extends AppCompatActivity {

public ImageView imageView;
public Random random;
public TextView textView;
int easy[] = {R.drawable.face_with_tears_of_joy, R.drawable.grinning_face, R.drawable.grinning_face_with_smiling_eyes};
int hard[] = {R.drawable.face_with_tears_of_joy, R.drawable.grinning_face, R.drawable.grinning_face_with_smiling_eyes,
        R.drawable.rolling_on_the_floor_laughing, R.drawable.smiling_face_with_open_mouth, R.drawable.smiling_face_with_open_mouth_and_cold_sweat,
        R.drawable.smiling_face_with_open_mouth_and_smiling_eyes};
public ImageView imageView1;
public ImageView imageView2;
public ImageView imageView3;
public ImageView imageView4;
public ImageView imageView5;
public ImageView imageView6;
public ImageView imageView7;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    imageView1 = (ImageView) findViewById(R.id.face_with_tears_of_joy);
    imageView2 = (ImageView) findViewById(R.id.grinning_face);
    imageView3 = (ImageView) findViewById(R.id.grinning_face_with_smiling_eyes);
    imageView4 = (ImageView) findViewById(R.id.rolling_on_the_floor_laughing);
    imageView5 = (ImageView) findViewById(R.id.smiling_face_with_open_mouth);
    imageView6 = (ImageView) findViewById(R.id.smiling_face_with_open_mouth_and_cold_sweat);
    imageView7 = (ImageView) findViewById(R.id.smiling_face_with_open_mouth_and_smiling_eyes);
    imageView = (ImageView) findViewById(R.id.imageView);
    random = new Random();
    textView = (TextView) findViewById(R.id.textView);

    int randomInt = random.nextInt(hard.length);
    imageView.setBackgroundResource(hard[randomInt]);

}

    public void clickedEmoji(View view) {

        ImageView image = (ImageView) view;

        Bitmap clicked = ((BitmapDrawable) image.getDrawable()).getBitmap();
        Bitmap displayed = ((BitmapDrawable) image.getDrawable()).getBitmap();

        if (clicked == displayed) {
            textView.setText("Well Done!");
        } else {
            textView.setText("Unlucky!");
        }
    }

标签： javaandroidarraysif-statementimageview

java - 检查ImageView是否等于输入点击

问题描述

解决方案

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