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有關於圖片
請問各位大大 我這裡有簡單的程式 我想要做的圖片顯示是 當BMI達到 < 18.5 會顯示一張圖片，然後圖片顯示5秒會消失，但是做不太出來，想請教各位大大一下這是我程式碼
package com.example.master.healthy;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private ImageView imageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn = (Button) findViewById(R.id.button);
btn.setOnClickListener(listener);
Button btn2 = (Button) findViewById(R.id.button);
btn2.setOnClickListener(listener);
}
public View.OnClickListener listener = new View.OnClickListener() {
public void onClick(View v) {
double height, weight, bmi, bodyweight = 0;
EditText txtHeight = (EditText) findViewById(R.id.txtHeight);
EditText txtWeight = (EditText) findViewById(R.id.txtWeight);
height = Double.parseDouble(txtHeight.getText().toString());
weight = Double.parseDouble(txtWeight.getText().toString());
height = height / 100.00;
bmi = weight / (height * height);
CheckBox men = (CheckBox) findViewById(R.id.checkBox);
if (men.isChecked()) {
bodyweight = 62 + (height - 1.7) * 0.6;
}
CheckBox lady = (CheckBox) findViewById(R.id.checkBox2);
if (lady.isChecked()) {
bodyweight = 52 + (height - 1.58) * 0.5;
}
//bodyweight = (height * height) * 22;
TextView output = (TextView) findViewById(R.id.lblOutput);
output.setText(Double.toString(bmi));
TextView output2 = (TextView) findViewById(R.id.lblOutput2);
output2.setText(Double.toString(bodyweight));
}
};
}
...<div class='locked'><em>瀏覽完整內容，請先 <a href='member.php?mod=register'>註冊</a> 或 <a href='javascript:;' onclick="lsSubmit()">登入會員</a></em></div><div></div> 你可以加上這個試試！！
new Handler().postDelayed(new Runnable(){
public void run()
{
//圖片消失
}
}, 5000);
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