如何向GridView添加多个布局？
我的活动：
public class PassCodeActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_passcode);
GridView gridView = (GridView) findViewById(R.id.grid_passcode_button);
PassCodeAdapter mPassCodeAdapter = new PassCodeAdapter(this);
gridView.setAdapter(mPassCodeAdapter);
gridView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// TODO Auto-generated method stub
}
});
}
}
我的适配器
public class PassCodeAdapter extends BaseAdapter {
private final int VIEW_TYPE_ONE = 0;
private final int VIEW_TYPE_TWO = 1;
private final int VIEW_TYPE_THREE = 2;
private Context mContext;
private String[] mKeyPadStringType1 = {"1","0"};
private String[] mKeyPadStringType2 = {"2","3","4","5","6","7","8","9"};
private String[] mKeyPadWord = {"ABC","DEF","GHI","JKL","MNO","PQRS","TUV","WXYZ"};
private ArrayList<Integer> pageListToRemoveBtn;
// Constructor
public PassCodeAdapter(Context mContext) {
this.mContext = mContext;
}
@Override
public int getCount() {
return 12;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public int getItemViewType(int position) {
// TODO Auto-generated method stub
if (position == 9 || position == 11) {
return VIEW_TYPE_THREE;
} else if (position == 0 || position == 10) {
return VIEW_TYPE_ONE;
} else {
return VIEW_TYPE_TWO;
}
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
pageListToRemoveBtn = new ArrayList<Integer>();
pageListToRemoveBtn.add(9);
int type = getItemViewType(position);
ViewHolder viewHolder = null;
ViewHolder.ViewHolderWithWord viewHolderWithWord = null;
ViewHolder.ViewHolderWithImage viewHolderWithImage = null;
if (type == VIEW_TYPE_ONE) {
if (convertView == null) {
// inflate the GridView item layout
LayoutInflater inflater = LayoutInflater.from(mContext);
convertView = inflater.inflate(R.layout.item_passcode_keypad, parent, false);
// initialize the view holder
viewHolder = new ViewHolder();
viewHolder.mKeyPad = (TextView) convertView.findViewById(R.id.txt_passcode_keypad);
convertView.setTag(viewHolder);
} else {
// recycle the already inflated view
viewHolder = (ViewHolder) convertView.getTag();
}
// update the item view
viewHolder.mKeyPad.setText(mKeyPadStringType1[position]);
}
else if (type == VIEW_TYPE_TWO) {
if (convertView == null) {
// inflate the GridView item layout
LayoutInflater inflater = LayoutInflater.from(mContext);
convertView = inflater.inflate(R.layout.item_passcode_keypad_with_words, parent, false);
// initialize the view holder
viewHolderWithWord = new ViewHolder.ViewHolderWithWord();
viewHolderWithWord.mKeyPad = (TextView) convertView.findViewById(R.id.txt_passcode_number);
viewHolderWithWord.mKeyPadWord = (TextView) convertView.findViewById(R.id.txt_passcode_word);
convertView.setTag(viewHolderWithWord);
} else {
// recycle the already inflated view
viewHolderWithWord = (ViewHolder.ViewHolderWithWord) convertView.getTag();
}
// update the item view
viewHolderWithWord.mKeyPad.setText(mKeyPadStringType2[position]);
viewHolderWithWord.mKeyPadWord.setText(mKeyPadWord[position]);
}
else if (type == VIEW_TYPE_THREE) {
if (convertView == null) {
// inflate the GridView item layout
LayoutInflater inflater = LayoutInflater.from(mContext);
convertView = inflater.inflate(R.layout.item_passcode_keypad_image, parent, false);
// initialize the view holder
viewHolderWithImage = new ViewHolder.ViewHolderWithImage();
viewHolderWithImage.mKeyPadImage = (ImageView) convertView.findViewById(R.id.img_passcode_keypad);
convertView.setTag(viewHolderWithImage);
} else {
// recycle the already inflated view
viewHolderWithImage = (ViewHolder.ViewHolderWithImage) convertView.getTag();
}
if(pageListToRemoveBtn.contains(position)){
// update the item view
viewHolderWithImage.mKeyPadImage.setImageResource(R.drawable.blank);
}else{
viewHolderWithImage.mKeyPadImage.setImageResource(R.drawable.ic_passcode_delete);
}
}
return convertView;
}
public static class ViewHolder {
TextView mKeyPad;
public TextView getmIcon() {
return mKeyPad;
}
public static class ViewHolderWithWord extends ViewHolder {
TextView mKeyPadWord;
}
public static class ViewHolderWithImage extends ViewHolder {
ImageView mKeyPadImage;
}
}
}
我想要的是这样的：
但我得到这样的东西：
当我触摸GridView时，应用程序将崩溃并显示错误：
08-13 10:44:29.323: E/InputEventReceiver(5843): Exception dispatching input event.
08-13 10:44:29.331: E/AndroidRuntime(5843): FATAL EXCEPTION: main
08-13 10:44:29.331: E/AndroidRuntime(5843): java.lang.ClassCastException: com.itmo.lifelog_2015.ui.adapter.PassCodeAdapter$ViewHolder cannot be cast to com.itmo.lifelog_2015.ui.adapter.PassCodeAdapter$ViewHolder$ViewHolderWithWord
08-13 10:44:29.331: E/AndroidRuntime(5843): at com.itmo.lifelog_2015.ui.adapter.PassCodeAdapter.getView(PassCodeAdapter.java:103)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.widget.AbsListView.obtainView(AbsListView.java:2251)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.widget.GridView.makeAndAddView(GridView.java:1331)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.widget.GridView.makeRow(GridView.java:331)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.widget.GridView.fillDown(GridView.java:283)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.widget.GridView.fillGap(GridView.java:243)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.widget.AbsListView.trackMotionScroll(AbsListView.java:5036)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.widget.AbsListView.scrollIfNeeded(AbsListView.java:3193)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.widget.AbsListView.onTouchEvent(AbsListView.java:3467)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.View.dispatchTouchEvent(View.java:7127)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2170)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1905)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2176)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1919)
08-13 10:44:29.331: E/AndroidRuntime(5843): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1925)
08-13 10:44:29.331: E/AndroidRuntime(5843): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1379)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.app.Activity.dispatchTouchEvent(Activity.java:2396)
08-13 10:44:29.331: E/AndroidRuntime(5843): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1873)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.View.dispatchPointerEvent(View.java:7307)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3172)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3117)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4153)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4132)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4224)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:163)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:4203)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:4243)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.Choreographer.doCallbacks(Choreographer.java:555)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.Choreographer.doFrame(Choreographer.java:523)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.os.Handler.handleCallback(Handler.java:615)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.os.Handler.dispatchMessage(Handler.java:92)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.os.Looper.loop(Looper.java:137)
08-13 10:44:29.331: E/AndroidRuntime(5843): at android.app.ActivityThread.main(ActivityThread.java:4745)
08-13 10:44:29.331: E/AndroidRuntime(5843): at java.lang.reflect.Method.invokeNative(Native Method)
08-13 10:44:29.331: E/AndroidRuntime(5843): at java.lang.reflect.Method.invoke(Method.java:511)
08-13 10:44:29.331: E/AndroidRuntime(5843): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
08-13 10:44:29.331: E/AndroidRuntime(5843): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
08-13 10:44:29.331: E/AndroidRuntime(5843): at dalvik.system.NativeStart.main(Native Method)
请告诉我如何解决这个问题！提前谢谢！
1 个答案:
答案 0 :(得分：0)
在静态viewholder类之外声明不同的视图。
使用此方法有两个视图（我认为在您的情况下不需要）
public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
class ViewHolder0 extends RecyclerView.ViewHolder {
...
}
class ViewHolder2 extends RecyclerView.ViewHolder {
...
}
@Override
public int getItemViewType(int position) {
// Just as an example, return 0 or 2 depending on position
// Note that unlike in ListView adapters, types don't have to be contiguous
return position % 2 * 2;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
switch (viewType) {
case 0: return new ViewHolder0(...);
case 2: return new ViewHolder2(...);
...
}
}
}
这将解决类强制转换异常
关于实现拨号盘视图
采用固定大小的gridview，即固定数量的列和固定行，每个网格项应具有相同的视图 - 相同的布局文件 - 只是有条件地基于网格的每个项目位置
- 禁用textview（如1号和＃1的情况）
- 使背景变灰 - 最后一行极端位置
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