小编niy*_*iya的帖子

导致错误的类如下:

package com.extrasmart;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
//import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemSelectedListener;

public class ActivityImgGrid extends Activity {

    ExtraSmartApplication application = (ExtraSmartApplication) getApplication();

    GridView mGrid;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activityimg_grid);
        mGrid = (GridView) findViewById(R.id.imgGrid);
        mGrid.setAdapter(new AppsAdapter());
        mGrid.setOnItemSelectedListener(new OnItemSelectedListener()
        {
            public void onNothingSelected(AdapterView v) {
                // TODO Auto-generated method stub

            }

            public void onItemSelected(AdapterView parent, View v, int position, long id) {
                ExtraSmartApplication application = (ExtraSmartApplication) getApplication(); …

在应用程序中嵌入WebView并在其中加载html页面时,JavaScripts alert()不起作用.请给我一个例子.

如何在android中创建自定义内容提供程序？给我一个简单的例子