Android之Intent之启动浏览器

最新推荐文章于 2024-07-22 17:19:24 发布

iteye_3535

最新推荐文章于 2024-07-22 17:19:24 发布

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文章标签：移动开发

本文介绍了如何在Android应用中通过Intent实现网页打开功能，包括设置Intent动作、处理Intent接收和异常处理。

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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>