我想每次单击按钮后增加一个数字1并使用volley在mysql中讲这个数字,如果任何时候单击此按钮的数字将像1一样增加或更新,然后会像这样2 -3-4是吗?
我将使用此代码在数据库中存储用户喜欢和不喜欢的内容
答案 0 :(得分:1)
尝试一下
对于Java,
public class Test extends AppCompatActivity {
Integer count = 0;
Button button;
TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
button = findViewById(R.id.button);
textView = findViewById(R.id.textView);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
count+=1;
textView.setText(count.toString());
//store counter to your database
}
});
}
}
对于Kotlin,
class Test : AppCompatActivity() {
var counter : Int = 0
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_test)
button.setOnClickListener {
counter+=1
textView.text = counter.toString()
//store counter to your database
}
}
}
答案 1 :(得分:0)
Integer i = 1;
内部点击:
i = i + 1;
count.setText(i);