学步园

启动浏览器

src

package cn.android.lyj;

import android.app.Activity;
import android.app.Dialog;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;

public class Activity_01 extends Activity {

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		// 设定Spinner的下拉菜单
		ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
				this, R.array.actions, android.R.layout.simple_spinner_item);
		adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

		Spinner spinner = (Spinner) findViewById(R.id.Spinner01);
		spinner.setAdapter(adapter);

		// 按下[Submit]按键的处理
		Button button = (Button) findViewById(R.id.Button01);
		button.setOnClickListener(new View.OnClickListener() {
			
			public void onClick(View v) {
				try {
					EditText editText = (EditText) findViewById(R.id.EditText01);
					Spinner spinner = (Spinner) findViewById(R.id.Spinner01);
					// 设定Intent的动作(Action), 必须加http://
					Intent intent = new Intent(spinner.getSelectedItem().toString(),  Uri.parse("http://www.baidu.com"));
					startActivity(intent);
					
				} catch (Exception e) {
					TextView textView = new TextView(Activity_01.this);
					textView.setText(e.getMessage());
					Dialog dialog = new Dialog(Activity_01.this);
					dialog.setTitle(e.getClass().getName());
					dialog.setContentView(textView);
					dialog.show();
				}
			}
		});
	}
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <EditText
        android:id="@+id/EditText01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Spinner
        android:id="@+id/Spinner01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/Button01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button_label" />

</LinearLayout>

arrays.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string-array name="actions">
        <item>android.intent.action.VIEW</item>
        <item>android.intent.action.WEB_SEARCH</item>
        <item>android.intent.action.CALL</item>
        <item>android.intent.action.DIAL</item>
    </string-array>
</resources>

strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="button_label">Submit</string>
    <string name="app_name">e_5_2 Web Intent Caster</string>
</resources>

AndroidManfest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="cn.android.lyj"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="10" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:label="@string/app_name"
            android:name=".Activity_01" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>