- 创建自定义Dialog布局的xml文件，位置vendor/mdiatek/proprietary/packages/apps/Gallery2Zuk/res/layout/delete_photos_dialog_layout.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="#fafafa" android:gravity="center" android:orientation="vertical" > <TextView android:id="@+id/delete_photos_dialog_message" android:layout_width="match_parent" android:layout_height="52dip" android:gravity="center" android:textColor="#999999" android:textSize="14sp" android:layout_marginTop="11dp" android:layout_marginBottom="5dp" android:background="#fafafa"/> <View android:layout_width="match_parent" android:layout_height="0.66700006dip" android:background="#dfdfdf"/> <TextView android:id="@+id/dialog_delete_bt" android:layout_width="match_parent" android:layout_height="52dip" android:gravity="center" android:text="@string/delete" android:textColor="#333333" android:textSize="14sp" android:background="@drawable/dialog_button_bg"/> <View android:layout_width="match_parent" android:layout_height="4dp" android:layout_gravity="center" android:background="#dddddd"/> <TextView android:id="@+id/dialog_cancel_bt" android:layout_width="match_parent" android:layout_height="52dip" android:gravity="center" android:text="@string/cancel" android:textColor="#333333" android:enabled="true" android:textSize="14sp" android:background="@drawable/dialog_button_bg"/> </LinearLayout>
- 然后设置该layout布局的style
<style name="delete_photos_dialog_style"> <item name="android:windowNoTitle">true</item> <item anme="android:backgroundDimEnabled">true</item> </style>
- backgroundDimEnabled属性是是否允许对话框的背景变暗，为ture则背景变暗
- 建立一个类用来加载该布局，并且调整布局在屏幕上的位置，类的位置vendor/mdiatek/proprietary/packages/apps/Gallery2Zuk/src/com/android/gallery3d/wind/base/view/DeletePhotosDialog.java
import android.view.Gravity; import android.view.View; import android.view.LayoutInflater; import android.view.Window; import android.view.WindowManager; import android.content.Context; import android.app.Dialog; import android.widget.LinearLayout; import android.widget.TextView; import java.util.ArrayList; import android.net.Uri; import android.os.Bundle; import com.android.gallery3d.R; import com.android.gallery3d.wind.menu.MenuExecutor; public class DeletePhotosDialog implements View.OnClickListner{ private Context mContext; private Dialog mDialog; private TextView dialogMessage; private TextView dialogDeleteBT; private TextView dialogCancelBT; private ArrayList<Uri> uris; private FragmentCallback callBack;//FragmentCallback应该是MenuExecutor中的一个接口 private int id; public DeletePhotosDialog(Context context,ArrayList<Uri> uris,FragmentCallback callBack,int id){ mContext=context; this.uris=uris; this.callBack=callBack; this.id=id; } public Dialog createDeletePhotosDialog(String message){ mDialog = new Dialog(mContext,R.style.delete_photos_dialog_style);//根据style创建一个dialog LinearLayout root=(LinearLayout)LayoutInflator.from(mContext).inflate( R.layout.delete_photos_dialog_layout,null); dialogMessage=(TextView)root.findViewById(R.id.delete_photos_dialog_message); dialogMessage.setText(message); dialogDeleteBT=(TextView)root.findViewById(R.id.dialog_cancel_bt); dialogDeleteBT.setOnClickListener(this); dialogCancelBT=(TextView)root.findViewById(R.id.dialog_cancel_bt); dialogCancelBT.setOnClickListener(this); mDialog.setContentView(root);//给Dialog对象设置布局 Window dialogWindow=mDialog.getWindow();//定义一个Window对象，将mDialog通过getWindow得到的Window赋值给该对象 dialogWindow.setGravity(Gravity.BOTTOM);//设置Window的对齐方式为底部对齐 WindowManager.LayoutParams lp=dialogWindow.getAttributes();//获取对话框当前的参数值 lp.x=0;//新位置X坐标 lp.y=130;//新位置Y坐标 lp.width=(int)mContext.getResources().getDisplayMetrics().widthPixels;//宽度 root.measure(0, 0);//对root布局进行测量 lp.height=root.getMeasuredHeight();//得到布局的高度 lp.alpha=9f;//透明度 dialogWindow.setAttributes(lp); return mDialog; } @Override public void onClick(View v){ switch(v.getId()){ case R.id.dialog_delete_bt: Bundle bundle = new Bundle(); bundle.putParcelableArrayList("URI_LIST", uris); callBack.startMemuAction(id,bundle); if(mDialog!=null){ mDialog.dismiss();//点击删除按钮以后，dialog去掉 } break; case R.id.dialog_cancel_bt: if(mDialog!=null){ mDialog.dismiss();//点击删除按钮以后，dialog去掉 } break; default: break; } } }
- 参考链接http://blog.csdn.net/fancylovejava/article/details/21617553
- 找到点击弹出该对话框的按钮，位置在vendor/mdiatek/proprietary/packages/apps/Gallery2Zuk/src/com/android/gallery3d/wind/moment/MomentFragment.java
public void bottomButtonClick(){ ...... ImageView deletePhotos=(ImageView)getActivity().findViewById(R.id.btn_delete); deletePhotos.setOnClickListner(new View.OnClickListener(){ @Override public void onClick(View v){ String confirmMsg=""; String type=getSelectedItemType();//得到选中项的数据类型 if(type.equalsIgnoreCase("photo")){ confirmMsg=getResources().getQuantityString(R.plurals.delete_selection_photo,getSelectedCount(),getSelectedCount());//getSelectedCount()方法获得被选中项的数量 }else if (type.equalsIgnoreCase("video")){ confirmMsg=getResources().getQuantityString(R.plurals.delete_selection_video,getSelectedCount(),getSelectedCount()); }else if(type.equalsIgnoreCase("burst")){ confirmMsg=getResources().getQuantityString(R.plurals.delete_selection_burst,getSelectedCount(),mConshotCount,getSelectedCount()); }else{ confirmMsg=getResources().getQuantityString(R.plurals.delete_selection_item,getSelectedCount(),getSelectedCount()); } mMenuExecutor.onDelete(R.id.btn_delete,confirmMsg,getSelectedUris());//getSelectedUris()方法获取所有被选项的uri } }); }
- 在string.xml中添加如下内容
<plurals name="delete_selection_photo"> <item quantity="one">Delete this photo?</item> <item quantity="other">Delete %1$d photo(s)?</item> </plurals> <plurals name="delete_selection_video"> <item quantity="one">Delete this video?This will also remove \n this video from other albums.</item> <iten quantity="other">Delete %1$d video(s)?This will also remove the \n video(s) from other albums.</item> </plurals> <plurals name="delete_selection_burst"> <item quantity="one">Delete %1$d photos in this burst sequence?</item> <iten quantity="other">Delete %1$d photos in %2$d burst sequences?</item> </plurals> <plurals name="delete_selection_item"> <item quantity="one">Delete this item?This will also remove \n this item from other albums.</item> <iten quantity="other">Delete %1$d item(s)?This will also remove the \n item(s) from other albums.</item> </plurals>
- 参考链接http://www.cnblogs.com/meiyitian/articles/2221742.html
- 我们看一实现删除操作的方法onDelete，它在vendor/mdiatek/proprietary/packages/apps/Gallery2Zuk/src/com/android/gallery3d/wind/menu/MenuExecutor.java中，内容如下
public void onDelete(int id,String confirmMsg,ArrayList<Uri>uriList){ mUriList=uriLIst; if(confirmMsg!=null){ DeletePhotosDialog deletePhotosDialog=new DeletePhotosDialog(mContext,mUriList,mFragmentCallback,id);//这里调用了我们前面定义的用来加载删除dialog的类DeletePhotosDialog deletePhotosDialog.createDeletePhotosDialog(confirmMsg).show();//这里创建删除dialog并显示 }else{ Bundle bundle=new Bundle(); bundle.putParcelableArrayList("URI_LIST",mUriList); mFragmentCallback.startMenuAction(id,bundle); } }
- 这里继续补充接口回调的知识
- 在DeletePhotosDialog.java中点击删除后的操作
callBack.startMenuAction(id,bundle);
callBack是接口FragmentCallback的对象，这里是通过DeletePhotosDialog的构造方法传入的public DeletePhotosDialog(Context context,ArrayList<Uri> uris,FragmentCallback callBack,int id)
于是我们去找实际调用DeletePhotosDialog类并传入参数的位置，就是上面提到的onDelete方法，通过该方法体，我们发现mFragmentCallback来自于类MenuExecutor中的构造方法public MenuExecutor(Context context,final FragmentCallback fragmentCallback)
于是我们要去找实际调用MenuExecutor类并传入参数的位置，于是我们发现在类MomentFragment的initViews方法中实际调用了该类mMenuExecutor=new MenuExecutor(getActivity(),this);
这里重点来了，说明MenuExecutor这个类实现了接口FragmentCallback，于是找到实现该类需要重写的方法startMenuAction中的内容，如下final MenuFragment menuFragment=MenuFragment.newInstance(actionId,uris); menuFragment.setProgressCallback(this);
这里又将类本身传入作为参数，于是我们发现该类同时实现了接口MenuFragment.ProgressCallBack，我们在去看看实现这个接口，都需要重写哪些方法，接口的内容如下public interface ProgressCallBack{ void onProgressStart(int actionId,int max); void onProgressUpdate(int index); void onProgressComplete(String msg); }
于是我们回到MomentFragment类中，看看该类是如何重写这些方法的，我们发现在重写的方法onProgressStart中，调用了方法showDialog(deletingCount);,于是我们找到该类中的showDialog方法，这个方法就是真正生成ProgressDialog的位置，内容如下 private void showDialog(int max){ int dialogTitle; if(actionId==R.id.btn_delete){ dialogTitle=R.id.btn_delete; }else{ dialogTitle=R.string.ok; } if(progressDialog !=null && progressDialog.isShowing()){ progressDialog.cancel(); } progressDialog=CustomProgressDialog.createProgressDialog(getActivity(),R.style.CustomProgressDialog,dialogTitle,max); progressDialog.show(); }
作者：u012966861 发表于2016/11/24 17:49:00 原文链接
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