这可能有点太多了，但我需要它作为我的应用程序中的核心功能。我在strings.xml中得到了几个用string-array组成的类别：
<string-array name="sport_array">
<item>Juggle a soccer ball for at least 25 times!</item>
</string-array>
<string-array name="ff_array">
<item>Make your friend or family member some scrambled egg for breakfast!</item>
<item>Play hide and seek with your friends!</item>
<item>Go outside and pick some flowers for your best friend!</item>
</string-array>
<string-array name="money_array">
<item>Head over to the movie house!</item>
</string-array>
<string-array name="outside_array">
<item>Go outside and pick some flowers for your best friend!</item>
</string-array>
<string-array name="school_array">
<item>Help your neighbour with his homework!</item>
<item>During your lunch break, go talk to one of your teachers! They might have something interesting to share with you</item>
</string-array>
<string-array name="fitness_array">
<item>Do 10 push-ups without stopping</item>
<item>Do 15 dips without stopping</item>
</string-array>
<string-array name="photo_array">
<item>Take a selfie with a stranger!</item>
<item>Give it your best, take the best picture in history!</item>
</string-array>
<string-array name="beach_array">
<item>Gather with your best friends and have a BBQ at the beach</item>
</string-array>
<string-array name="food_array">
<item>Make your family some cupcakes!</item>
<item>Make your friend or family member some scrambled egg for breakfast!</item>
</string-array>
它们位于Listview中，每行包含一个复选框和textview。 MyActivity3：
public class MyActivity3 extends Activity {
private TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my3);
Button m = (Button) findViewById(R.id.button3);
tv = (TextView) findViewById(R.id.textViewcat);
Typeface typeface = Typeface.createFromAsset(getAssets(), "BebasNeue Bold.ttf");
tv.setTypeface(typeface);
String[] listArray = new String[] { "All", "Friends", "Family", "Sports", "Outside","Money", "At School", "Fitness", "Photography", "Food", "Beach", };
SharedPreferences sharedPreferences = getSharedPreferences("status", MODE_PRIVATE);
Boolean[] checkedStatus = new Boolean[listArray.length];
for ( int index = 0; index < checkedStatus.length; index++)
checkedStatus[index] = sharedPreferences.getBoolean(Integer.toString(index), false);
ListView listView = (ListView) findViewById(R.id.listView);
MyAdapter adapter = new MyAdapter(this, R.layout.row_layout, listArray, checkedStatus);
listView.setAdapter(adapter);
listView.setOverScrollMode(View.OVER_SCROLL_NEVER);
}
在另一个活动中，MyActivity2有一个textview，其中的值从allthings_array加载：
<string-array name="allthings_array">
<item>Make your friend or family member some scrambled egg for breakfast!</item>
<item>Juggle a soccer ball for at least 100 times</item>
<item>Head over to the movie house</item>
<item>Take a selfie with a stranger!</item>
<item>Play hide and seek with your friends!</item>
<item>Do 10 push-ups without stopping</item>
<item>Go outside and pick some flowers for your best friend!</item>
<item>Help your neighbour with his homework!</item>
<item>Make your family some cupcakes!</item>
<item>Give it your best, take the best picture in history!</item>
<item>Do 15 dips without stopping</item>
<item>During your lunch break, go talk to one of your teachers! They might have something interesting to share with you</item>
<item>Gather with your best friends and have a BBQ at the beach</item>
</string-array>
MyActivity2：
public class MyActivity2 extends Activity {
private String[] colors;
private String[] values;
private TextView tv;
private RelativeLayout rl;
Button n;
int index = 0;
int position2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_activity2);
n = (Button) findViewById(R.id.button);
tv = (TextView) findViewById(R.id.textView);
rl = (RelativeLayout) findViewById(R.id.layout_view);
Typeface typeface = Typeface.createFromAsset(getAssets(), "BebasNeue Bold.ttf");
n.setTypeface(typeface);
Typeface face = Typeface.createFromAsset(getAssets(), "OSP-DIN.ttf");
tv.setTypeface(face);
values = getResources().getStringArray(R.array.allthings_array);
colors = getResources().getStringArray(R.array.colorcode_array);
n.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
if (index == 13) {
Toast.makeText(getApplicationContext(), "More coming each Sunday!", Toast.LENGTH_SHORT).show();
} else {
position2 = (index++);
}
String textValue = values[position2];
tv.setText(textValue);
Random RAND = new Random();
int position = RAND.nextInt(colors.length);
String nextValue = colors[position];
rl.setBackgroundColor(Color.parseColor(nextValue));
n.setBackgroundColor(Color.argb(00, 00, 00, 00));
return true;
case MotionEvent.ACTION_UP:
n.setBackgroundColor(Color.argb(00, 00, 00, 00));
return true;
default:
return false;
}
}
});
}
现在我需要的是基于用户检查的复选框，textView必须从string_array中加载适当的值。因此，例如，如果我在MyActivity3中检查“Beach”和“Money”，则MyActivity2中的textview必须仅加载来自beach_array和money_array的值。
我该怎么做？如果示例基于我的代码
，我会对它进行说明编辑：
MyActivity：
public class MyActivity extends Activity {
private String[] colors;
private RelativeLayout rl2;
private MediaPlayer player;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
Button n = (Button) findViewById(R.id.button);
Button m = (Button) findViewById(R.id.button3);
Button v = (Button) findViewById(R.id.buttonabout);
rl2 = (RelativeLayout) findViewById(R.id.layout_view2);
Typeface typeface = Typeface.createFromAsset(getAssets(), "BebasNeue Bold.ttf");
n.setTypeface(typeface);
v.setTypeface(typeface);
m.setTypeface(typeface);
colors = getResources().getStringArray(R.array.colorcodebored_array);
Random RAND = new Random();
int position = RAND.nextInt(colors.length);
String nextValue = colors[position];
rl2.setBackgroundColor(Color.parseColor(nextValue));
setVolumeControlStream(AudioManager.STREAM_MUSIC);
player = MediaPlayer.create(this, R.raw.pleasant);
player.start();
}
public void openNewActivity(View view) {
// Do something in response to button
Intent intent = new Intent(this, MyActivity2.class);
startActivity(intent);
overridePendingTransition(R.anim.animation, R.anim.animation2);
}
public void openNewActivity2(View view) {
// Do something in response to button
Intent intent = new Intent(this, MyActivity3.class);
startActivity(intent);
startActivityForResult(intent, 1);//Best if you use some static int
overridePendingTransition(R.anim.animation5, R.anim.animation6);
}
public void openNewActivity3(View view) {
// Do something in response to button
Intent intent = new Intent(this, MyActivity4.class);
startActivity(intent);
overridePendingTransition(R.anim.animation, R.anim.animation2);
}
}
答案 0 :(得分：0)
好的，既然这两个活动都是从你的“主屏幕”调用的，你只需要使用方法“onActivityResult”，并在调用你的活动时在你的意图中传递信息。
在调用包含您的复选框列表的活动时，您将开始期待结果的活动（已检查的值）：
Intent myIntent = new Intent(this, MyCheckboxActiity.class);
startActivityForResult(myIntent, 1);//Best if you use some static int
完成复选框活动后，您会将所有值放在意图中，并将其作为主屏幕活动的结果发布：
Intent myIntent = getIntent();
myIntent.putExtra(MY_VALUE, myValue);
setResult(MY_ACTIVITY_RESULT, myIntent);
finish();
这将调用您的方法onActivityResult：
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
//Store your data or do what you want
}
由于您知道您的数据存储在您的活动中，您可以通过意图调用您的其他活动传递信息：）