android自定義控件—添加表情
一、定義layout文件，圖片不提供瞭
[java]
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="https://schemas.android.com/apk/res/android"
xmlns:tools="https://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="bottom"
android:padding="0dp"
android:orientation="vertical" >
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="fill_parent"
android:layout_height="140dip"
android:layout_gravity="center"
android:background="#ffffff"/>
<LinearLayout
android:id="@+id/page_select"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#ddd"
android:gravity="center_horizontal" >
<ImageView
android:id="@+id/page0_select"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="matrix"
android:src="@drawable/page_focused" />
<ImageView
android:id="@+id/page1_select"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:scaleType="matrix"
android:src="@drawable/page_unfocused" />
<ImageView
android:id="@+id/page2_select"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:scaleType="matrix"
android:src="@drawable/page_unfocused" />
</LinearLayout>
<!– 表情 –>
<LinearLayout
android:id="@+id/page_select_gif"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#aaa"
android:gravity="left">
<ImageView
android:id="@+id/page_normal_select"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="matrix"
android:src="@drawable/icon_smile"
android:layout_marginLeft="10dp" />
<ImageView
android:id="@+id/page_gif_select"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:scaleType="matrix"
android:src="@drawable/icon_pic" />
</LinearLayout>
</LinearLayout>
java類：
[java]
public class ExpressionView extends LinearLayout {
// 表情
// private Activity activity;
private EditText msgEditText;
private ViewPager viewPager;
private ArrayList<GridView> grids;
private int[] expressionImages;
private String[] expressionImageNames;
private int[] expressionImages1;
private String[] expressionImageNames1;
private int[] expressionImages2;
private String[] expressionImageNames2;
private ImageView page0;
private ImageView page1;
private ImageView page2;
private GridView gView1;
private GridView gView2;
private GridView gView3;
@SuppressLint("NewApi")
public ExpressionView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context);
}
public ExpressionView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public ExpressionView(Context context) {
super(context);
init(context);
}
private void init(Context context) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.expression_view, this);
page0 = (ImageView) findViewById(R.id.page0_select);
page1 = (ImageView) findViewById(R.id.page1_select);
page2 = (ImageView) findViewById(R.id.page2_select);
// 引入表情
expressionImages = Expressions.expressionImgs;
expressionImageNames = Expressions.expressionImgNames;
expressionImages1 = Expressions.expressionImgs1;
expressionImageNames1 = Expressions.expressionImgNames1;
expressionImages2 = Expressions.expressionImgs2;
expressionImageNames2 = Expressions.expressionImgNames2;
// 創建ViewPager
viewPager = (ViewPager) findViewById(R.id.viewpager);
initViewPager();
}
public void setEditText(EditText msgEditText){
this.msgEditText = msgEditText;
}
// 表情
private void initViewPager() {
LayoutInflater inflater = LayoutInflater.from(getContext());
grids = new ArrayList<GridView>();
gView1 = (GridView) inflater.inflate(R.layout.grid1, null);
setPage(page0, gView1, expressionImages, expressionImageNames);
grids.add(gView1);
gView2 = (GridView) inflater.inflate(R.layout.grid2, null);
grids.add(gView2);
gView3 = (GridView) inflater.inflate(R.layout.grid3, null);
grids.add(gView3);
// 填充ViewPager的數據適配器
PagerAdapter mPagerAdapter = new PagerAdapter() {
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
return arg0 == arg1;
}
@Override
public int getCount() {
return grids.size();
}
@Override
public void destroyItem(View container, int position, Object object) {
((ViewPager) container).removeView(grids.get(position));
}
@Override
public Object instantiateItem(View container, int position) {
((ViewPager) container).addView(grids.get(position));
return grids.get(position);
}
@Override
public void finishUpdate(View arg0) {
// TODO Auto-generated method stub
}
@Override
public void restoreState(Parcelable arg0, ClassLoader arg1) {
// TODO Auto-generated method stub
}
@Override
public Parcelable saveState() {
// TODO Auto-generated method stub
return null;
}
@Override
public void startUpdate(View arg0) {
// TODO Auto-generated method stub
}
};
viewPager.setAdapter(mPagerAdapter);
viewPager.setOnPageChangeListener(new GuidePageChangeListener());
}
// ** 指引頁面改監聽器 */
class GuidePageChangeListener implements OnPageChangeListener {
@Override
public void onPageScrollStateChanged(int arg0) {
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageSelected(int arg0) {
switch (arg0) {
case 0:
page0.setImageDrawable(getResources().getDrawable(
R.drawable.page_focused));
page1.setImageDrawable(getResources().getDrawable(
R.drawable.page_unfocused));
break;
case 1:
setPage(page1, gView2, expressionImages1, expressionImageNames1);
break;
case 2:
setPage(page2, gView3, expressionImages2, expressionImageNames2);
break;
}
}
}
public void setPage(ImageView pageFocused, GridView gridView,
final int[] expressionImages, final String[] expressionImageNames) {
page0.setImageDrawable(getResources().getDrawable(
R.drawable.page_unfocused));
page1.setImageDrawable(getResources().getDrawable(
R.drawable.page_unfocused));
page2.setImageDrawable(getResources().getDrawable(
R.drawable.page_unfocused));
pageFocused.setImageDrawable(getResources().getDrawable(
R.drawable.page_focused));
List<Map<String, Object>> listItems = new ArrayList<Map<String, Object>>();
// 生成24個表情
for (int i = 0; i < 24; i++) {
Map<String, Object> listItem = new HashMap<String, Object>();
listItem.put("image", expressionImages[i]);
listItems.add(listItem);
}
SimpleAdapter simpleAdapter1 = new SimpleAdapter(getContext(), listItems,
R.layout.singleexpression, new String[] { "image" },
new int[] { R.id.image });
gridView.setAdapter(simpleAdapter1);
gridView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Bitmap bitmap = null;
bitmap = BitmapFactory.decodeResource(getResources(),
expressionImages[arg2 % expressionImages.length]);
ImageSpan imageSpan = new ImageSpan(getContext(), bitmap);
SpannableString spannableString = new SpannableString(
expressionImageNames[arg2]);
spannableString.setSpan(imageSpan, 0,
expressionImageNames[arg2].length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
// 編輯框設置數據
msgEditText.append(spannableString);
}
});
}
}
使用方法：
在要使用的activitiy的佈局文件中加入：
[java]
<****.ExpressionView
android:id="@+id/expression_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:visibility="gone" />
在activity的java文件中：
[java]
ExpressionView expressionView = (ExpressionView) findViewById(R.id.expression_view);
[java]
expressionView.setEditText(msgEditText);
要彈表情時
[java]
expressionView.setVisibility(View.VISIBLE);
表情類： 表情資源自己找，命名格式 f000-f071共三頁，3*9=27每頁
[java]
<pre code_snippet_id="75812" snippet_file_name="blog_20131121_4_9573436" name="code" class="java">public class Expressions {</pre><pre code_snippet_id="75812" snippet_file_name="blog_20131121_6_7348589" name="code" class="java"> public static int[] expressionImgs = new int[] { R.drawable.f000,
R.drawable.f001, R.drawable.f002, R.drawable.f003, R.drawable.f004,
R.drawable.f005, R.drawable.f006, R.drawable.f007, R.drawable.f008,
R.drawable.f009, R.drawable.f010, R.drawable.f011, R.drawable.f012,
R.drawable.f013, R.drawable.f014, R.drawable.f015, R.drawable.f016,
R.drawable.f017, R.drawable.f018, R.drawable.f019, R.drawable.f020,
R.drawable.f021, R.drawable.f022, R.drawable.f023 };
/**
* 本地表情的名字1
*/
public static String[] expressionImgNames = new String[] { "[/f000]",
"[/f001]", "[/f002]", "[/f003]", "[/f004]", "[/f005]", "[/f006]",
"[/f007]", "[/f008]", "[/f009]", "[/f010]", "[/f011]", "[/f012]",
"[/f013]", "[/f014]", "[/f015]", "[/f016]", "[/f017]", "[/f018]",
"[/f019]", "[/f020]", "[/f021]", "[/f022]", "[/f023]" };
public static int[] expressionImgs1 = new int[] { R.drawable.f024,
R.drawable.f025, R.drawable.f026, R.drawable.f027, R.drawable.f028,
R.drawable.f029, R.drawable.f030, R.drawable.f031, R.drawable.f032,
R.drawable.f033, R.drawable.f034, R.drawable.f035, R.drawable.f036,
R.drawable.f037, R.drawable.f038, R.drawable.f039, R.drawable.f040,
R.drawable.f041, R.drawable.f042, R.drawable.f043, R.drawable.f044,
R.drawable.f045, R.drawable.f046, R.drawable.f047 };
/**
* 本地表情的名字2
*/
public static String[] expressionImgNames1 = new String[] { "[/f024]",
"[/f025]", "[/f026]", "[/f027]", "[/f028]", "[/f029]", "[/f030]",
"[/f031]", "[/f032]", "[/f033]", "[/f034]", "[/f035]", "[/f036]",
"[/f037]", "[/f038]", "[/f039]", "[/f040]", "[/f041]", "[/f042]",
"[/f043]", "[/f044]", "[/f045]", "[/f046]", "[/f047]" };
public static int[] expressionImgs2 = new int[] { R.drawable.f048,
R.drawable.f049, R.drawable.f050, R.drawable.f051, R.drawable.f052,
R.drawable.f053, R.drawable.f054, R.drawable.f055, R.drawable.f056,
R.drawable.f057, R.drawable.f058, R.drawable.f059, R.drawable.f060,
R.drawable.f061, R.drawable.f062, R.drawable.f063, R.drawable.f064,
R.drawable.f065, R.drawable.f066, R.drawable.f067, R.drawable.f068,
R.drawable.f069, R.drawable.f070, R.drawable.f071 };
/**
* 本地表情的名字3
*/
public static String[] expressionImgNames2 = new String[] { "[/f048]",
"[/f049]", "[/f050]", "[/f051]", "[/f052]", "[/f053]", "[/f054]",
"[/f055]", "[/f056]", "[/f057]", "[/f058]", "[/f059]", "[/f060]",
"[/f061]", "[/f062]", "[/f063]", "[/f064]", "[/f065]", "[/f066]",
"[/f067]", "[/f068]", "[/f069]", "[/f070]", "[/f071]" };
}</pre><br>
<span style="font-size:24px">有不懂的可以留言</span>
<p></p>
<pre></pre>