package com.example.demo1;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity
{
private Button btn;
private Intent intent;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn = (Button) findViewById(R.id.btn);
btn.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
Uri location = Uri.parse("geo:37.422219,-122.08364?z=14");
// Uri webpage=Uri.parse("http://www.baidu.com");
// Uri number=Uri.parse("tel:13211111111");
intent = new Intent(Intent.ACTION_VIEW, location);
// 確定intent可以被處理
PackageManager manager = getPackageManager();
List<ResolveInfo> activities = manager.queryIntentActivities(
intent, 0);
Log.i("info", activities.size() + "");
for (int i = 0; i < activities.size(); i++)
{
Log.i("info",
activities.get(i).activityInfo.applicationInfo
.loadLabel(manager).toString() + "");
}
//選擇器,強制用戶每次使用都做出選擇
String title = "choose";
// 創建並打開一個選擇器
Intent chooser = Intent.createChooser(intent, title);
startActivity(chooser);
}
});
}
}
Intent 調用系統程序
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