Android应用源码之天天动听 半透明Menu效果-IT计算机-毕业设计.zip

package com.yfz; import android.app.Activity; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.content.Context; import android.graphics.drawable.BitmapDrawable; import android.os.Bundle; import android.util.Log; import android.view.ContextMenu; import android.view.Gravity; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.view.ContextMenu.ContextMenuInfo; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.PopupWindow; import android.widget.TextView; import android.widget.LinearLayout.LayoutParams; public class MenuTest extends Activity { private String TAG = this.getClass().getSimpleName(); private int[] resArray = new int[] { R.drawable.icon_menu_addto, R.drawable.icon_menu_audioinfo, R.drawable.icon_menu_findlrc, R.drawable.icon_menu_scan }; private String[] title = new String[]{ "添加歌曲", "歌曲信息", "查找歌词", "搜索歌词" }; private static boolean show_flag = false; private PopupWindow pw = null; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } @Override public boolean onCreateOptionsMenu(Menu menu) { Log.e(TAG, "------ onCreateOptionsMenu ------"); //用AlertDialog弹出menu // View view = LayoutInflater.from(this).inflate(R.layout.menu, null); // GridView grid1 = (GridView)view.findViewById(R.id.menuGridChange); // grid1.setAdapter(new ImageAdapter(this)); // Builder build = new AlertDialog.Builder(this); // build.setView(view); // build.show(); LayoutInflater inflater = (LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View view = inflater.inflate(R.layout.menu, null); GridView grid1 = (GridView)view.findViewById(R.id.menuGridChange); grid1.setAdapter(new ImageAdapter(this)); //用Popupwindow弹出menu pw = new PopupWindow(view,LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT); //NND, 第一个参数， 必须找个View pw.showAtLocation(findViewById(R.id.tv), Gravity.CENTER, 0, 300); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { return super.onOptionsItemSelected(item); } public class ImageAdapter extends BaseAdapter { private Context context; public ImageAdapter(Context context) { this.context = context; } @Override public int getCount() { return resArray.length; } @Override public Object getItem(int arg0) { return resArray[arg0]; } @Override public long getItemId(int arg0) { return arg0; } @Override public View getView(int arg0, View arg1, ViewGroup arg2) { LinearLayout linear = new LinearLayout(context); LinearLayout.LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); linear.setOrientation(LinearLayout.VERTICAL); ImageView iv = new ImageView(context); iv.setImageBitmap(((BitmapDrawable)context.getResources().getDrawable(resArray[arg0])).getBitmap()); LinearLayout.LayoutParams params2 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); params2.gravity=Gravity.CENTER; linear.addView(iv, params2); TextView tv = new TextView(context); tv.setText(title[arg0]); LinearLayout.LayoutParams params3 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); params3.gravity=Gravity.CENTER; linear.addView(tv, params3); return linear; } } }