import android.support.v4.app.Fragment;
import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.*;
import android.widget.NumberPicker.OnValueChangeListener;
public class MainActivity extends Activity implements OnValueChangeListener {
EditText push_ups, sit_ups;
NumberPicker np;
Button calculate;
final Context context = this;
CheckBox checkbox;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
calculate = (Button)findViewById(R.id.calculate);
push_ups = (EditText)findViewById(R.id.pushups);
sit_ups = (EditText)findViewById(R.id.situps);
np = (NumberPicker)findViewById(R.id.np1);
checkbox = (CheckBox)findViewById(R.id.checkbox);
String[] values = {"some array"};
np.setMaxValue(values.length-1);
np.setMinValue(0);
np.setDisplayedValues(values);
np.setWrapSelectorWheel(false);
// calculateButton运行按钮
calculateButton();
LinearLayout layout = (LinearLayout)findViewById(R.id.linearLayout1);
layout.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
hideKeyboard();
return false;
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
return rootView;
}
}
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
}
private void hideKeyboard() {
InputMethodManager imm = (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(push_ups.getWindowToken(), 0);
}
public int calculatePushups() {
int pushupScore = 0;
int ageGroup = Integer.parseInt(null, np.getValue());
int pushupReps = Integer.parseInt(push_ups.getText().toString());
final int [][] pushupTable = {"some 2D array"};
if (pushupReps<= 60) {
pushupScore = pushupTable[pushupReps][ageGroup];
} else {
pushupScore = 60;
}
return pushupScore;
}
public int calculateSitups() {
final int [][] situpTable = {"some 2D array"};
return 0;
}
private void normalRun() {
}
private void specialRun() {
}
private void calculateRun() {
if (checkbox.isChecked()) {
specialRun();
}
else {
normalRun();
}
}
private void calculateScore() {
calculatePushups();
calculateSitups();
calculateRun();
}
public void calculateButton() {
final TextView pus = (TextView)findViewById(R.id.pushup_score);
calculate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// custom dialog
final Dialog dialog = new Dialog(context);
dialog.setContentView(R.layout.dialog_custom);
dialog.setTitle("Score");
我正在尝试将TextView设置为在此处显示pushupScore，但似乎我正在尝试将结果从另一个方法传递给此。我不知道如何使用android继续使用它，
//pus.setText(pushupScore);
pus.setText(String.valueOf(calculatePushups()));
Button dialogButton = (Button) dialog.findViewById(R.id.dialog_ok);
// if button is clicked, close the custom dialog
dialogButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
dialog.dismiss();
}
});
dialog.show();
}
});
}
}
这是我的对话框XML代码：
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:lineSpacingExtra="5dp"
android:text="Push-ups: "
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/pushup_score"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="4.97"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:lineSpacingExtra="5dp"
android:text="Sit-ups: "
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:lineSpacingExtra="5dp"
android:text="2.4km Run: "
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:lineSpacingExtra="5dp"
android:text="Award: "
android:textAppearance="?android:attr/textAppearanceLarge" />
<Button
android:id="@+id/dialog_ok"
style="@style/AppTheme"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:lineSpacingExtra="5dp"
android:text="Ok" />
</LinearLayout>
答案 0 :(得分：0)
你要在calculatePushups中返回pushupScore，所以只需写：
pus.setText(String.valueOf(calculatePushups()));
顺便说一下这不是一个android机制，这是简单的java返回用法： http://docs.oracle.com/javase/tutorial/java/javaOO/returnvalue.html
答案 1 :(得分：0)
您遗漏了相当多的代码，所以我不确定您的问题在哪里，但如果您可以按照这些步骤告诉我您是否遇到任何错误等？无论如何，这是你需要的：
确保您的Activity实现OnClickListener：
public class MainActivity extends Activity implements OnClickListener, OnValueChangeListener {
//...
}
在活动的重写onCreate（）方法中，将活动注册为处理程序：
calculate = (Button)v.findViewById(R.id.dialog_ok);
calculate.setOnClickListener(this);
在MainActivity内，让处理程序如下：
public void onClick(View v){
switch(v.getId(){
case R.id.dialog_ok:
push_ups.setText("" + calculatePushups());
break;
}
// ...
}
也许您应该将EditText更改为TextView，EditText不是必需的，可能会导致问题？
这是你追求的吗？