Question

我想点击ImageView，当达到一定数量的点击时，我希望Imageview更改图像。这是我的代码，但我不知道问题出在哪里。没有错误或其他什么。图片不会改变请你帮帮我吧感谢

public class MainActivity extends AppCompatActivity {
private ImageView megg;
int counter = 0;
int readhighscore;
private TextView mnumber;

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

    mnumber = (TextView) findViewById(R.id.number);
    mnumber.setText(Integer.toString(readhighscore));
    megg = (ImageView) findViewById(R.id.egg);
    megg.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            counter++;
            readhighscore = counter;
            mnumber.setText(Integer.toString(readhighscore));

        }

    });

    if (counter == 10){
        ImageView megg = (ImageView) findViewById(R.id.egg);
        megg.setImageResource(R.drawable.egg100);

    }

    if (counter == 100){
        ImageView megg = (ImageView) findViewById(R.id.egg);
        megg.setImageResource(R.drawable.egg100);

    }
    if (counter == 500){
        ImageView megg = (ImageView) findViewById(R.id.egg);
        megg.setImageResource(R.drawable.egg500);

    }


    SharedPreferences prefs = this.getSharedPreferences("myPrefsKey", Context.MODE_PRIVATE);
    counter = prefs.getInt("highscore", readhighscore);


}
@Override
protected void onPause() {
    super.onPause();

    SharedPreferences prefs = this.getSharedPreferences("myPrefsKey", Context.MODE_PRIVATE);
    SharedPreferences.Editor editor = prefs.edit();
    editor.putInt("highscore", readhighscore);

    editor.commit();

}
@Override
protected void onResume() {
    super.onResume();SharedPreferences prefs = this.getSharedPreferences("myPrefsKey", Context.MODE_PRIVATE);
    counter = prefs.getInt("highscore", readhighscore);
    readhighscore = counter;
    mnumber.setText(Integer.toString(readhighscore));
}
}

Answer 1

将flow语句放在onClick方法中。目前，If statements位于OnClickListener之外，因此每次点击都不会调用它，并且您希望每次点击都执行此检查。

 @Override
    public void onClick(View v) {
        counter++;
if (counter == 10){
    ImageView megg = (ImageView) findViewById(R.id.egg);
    megg.setImageResource(R.drawable.egg100);

}

if (counter == 100){
    ImageView megg = (ImageView) findViewById(R.id.egg);
    megg.setImageResource(R.drawable.egg100);

}
if (counter == 500){
    ImageView megg = (ImageView) findViewById(R.id.egg);
    megg.setImageResource(R.drawable.egg500);

}


    }

});

单击按钮时如何更改Imagerecource

1 个答案: