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试图创建一个应用程序来“清理”由 facebook.com/l.php 包裹的 url。代码编译得很好,我什至可以从 facebook 应用程序调用它,但是我得到一个黑屏,而且我解析的新 url 似乎从未得到处理。

对 Java 来说不是新手,但对 droid 来说是新手..... :-o

无论如何,表现为:

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

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="15" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="fusco.leetum.fblinkcleaner.Cleaner"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <data android:scheme="http" android:host="facebook.com" /> 
            <data android:scheme="http" android:host="m.facebook.com" />
            <data android:scheme="http" android:host="www.facebook.com" />
        </intent-filter>
    </activity>
</application>

</manifest>

并且活动 java ( finish() 在那里,因为如果用户启动它,它应该什么都不做,但是由于解析器代码在 onCreate() 方法中,它需要每次都启动):

    package fusco.leetum.fblinkcleaner;

import android.net.Uri; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; public class Cleaner extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //setContentView(R.layout.activity_cleaner); final Intent intent = getIntent(); if (intent.getAction().equals(Intent.ACTION_VIEW)) { final String baseurl = intent.getDataString(); String newurl = baseurl; if (baseurl.indexOf("?") != -1) { String[] parseurl = baseurl.substring(baseurl.indexOf("?")+3).split("%2F"); newurl = "http:/"; for (int i=2; i < parseurl.length; i++) { newurl = "/"+parseurl[i]; } } final Intent viewnewpage = new Intent(Intent.ACTION_VIEW, Uri.parse(newurl)); startActivity(viewnewpage); } this.finish(); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_cleaner, menu); return true; } }
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1 回答 1

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傻我!而不是创建我自己的解析器,我只需要使用 Uri 类的东西。多么好的学习曲线。Android 与普通的桌面编程有点不同......我想你不能只是通过推土机来解决问题。哦,清单是一样的,但这里是“更好”的代码。Prolly 不是最好的,但仍然希望这对其他人有所帮助:-D

这进入 onCreate(...) 方法,替换除了超级调用之外的所有内容:

Intent intent = this.getIntent(); // get intent that started activity

    if (intent.getAction().equals(Intent.ACTION_VIEW)) { // if called by view action
        Uri raw = intent.getData(); // get raw uri
        Uri cleanedUri = raw; // assign to allow 'pass thru' of not a wrapper
        String wrappedUri = raw.getQueryParameter("u"); // get the url defined in l.php?u=

        if (wrappedUri != null) { // if there was a u= parameter
            cleanedUri = Uri.parse(Uri.decode(wrappedUri)); // decode %stuff and parse to the proper uri
        }

        startActivity(new Intent(Intent.ACTION_VIEW, cleanedUri)); // broadcast new intent with new URI
    }

    this.finish(); // clear out and close this activity
于 2012-12-28T02:33:20.757 回答