大家好,很抱歉,如果这个问题得到解答。
我正在做一个地理游戏,我想知道如何根据我按下的按钮更改我的ImageView。
例如,我有一张带箭头的欧洲地图指向西班牙。我希望当我按下西班牙按钮时,地图会变成带箭头的地图,指向葡萄牙。
我已经尝试过这段代码,但我无法使其正常工作:
public void cargar_por(View v){
ImageView iv = (ImageView)findViewById(R.id.imageView);
if(flag==false){
Drawable por=setFeatureDrawable(iv,por);
iv.setImageDrawable(R.drawable.por);
flag = true;
}
else{
flag=false;
}
}
我怎么能这样做?
提前致谢。
编辑:我要添加完整的代码。xml文件如下所示:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".MainActivity">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:weightSum="1">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_weight="0.91"
android:weightSum="1"
android:focusableInTouchMode="true"
android:focusable="true">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal">
<Chronometer
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/chronometer"
android:layout_gravity="right"
android:enabled="true" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Nivel 1"
android:id="@+id/textView5"
android:layout_gravity="center_horizontal"
android:background="#ffffffff" />
</LinearLayout>
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/map"
android:src="@drawable/spa"
android:visibility="visible"
android:layout_weight="0.93" />
</TableLayout>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="131dp"
android:layout_gravity="center_horizontal"
android:background="#3f073dff">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/layout1">
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="60dp"
android:weightSum="1">
<LinearLayout
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:weightSum="1">
<Button
android:layout_width="181dp"
android:layout_height="match_parent"
android:text="ESPAÑA"
android:id="@+id/button5"
android:onClick="cargar_por" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="PORTUGAL"
android:id="@+id/button6" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:weightSum="1">
<LinearLayout
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="0.40"
android:weightSum="1">
<Button
android:layout_width="match_parent"
android:layout_height="58dp"
android:text="FRANCIA"
android:id="@+id/button7"
android:layout_weight="0.86" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="0.40">
<Button
android:layout_width="match_parent"
android:layout_height="59dp"
android:text="ITALIA"
android:id="@+id/button8" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</LinearLayout>
这样的Java代码:
package marti.victor.geografia;
import android.graphics.drawable.Drawable;
import android.os.SystemClock;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.*;
import android.widget.Button;
import android.widget.Chronometer;
import android.widget.ImageButton;
import android.widget.ImageView;
public class Juego extends ActionBarActivity {
// boolean flag = false;
ImageView image = (ImageView) findViewById(R.id.map);
Button but;
int a = 0;
Chronometer myChronometer;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.juego);
myChronometer = (Chronometer)findViewById(R.id.chronometer);
myChronometer.start();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main_activity2, 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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/*public void cargar_por(View v){
ImageView iv = (ImageView)findViewById(R.id.imageView);
but=(Button)findViewById(R.id.button5);
but.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
iv.setImageDrawable(R.drawable.por);
}
});
}*/
}
答案 0 :(得分:1)
试试这个
ImageView iv = (ImageView)findViewById(R.id.imageView);
spainbutton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
iv.setImageDrawable(R.drawable.por);
}
});
在你的情况下,我认为旗帜不能正常工作。