我遇到了我开发的应用程序的问题。问题是APP正在为Android 4.1工作，但不适用于android 2.3.7。
manifest.xml中的min SDK值设置为8.
当我调试时，我发现在执行setContentView时失败了（R.layout.activity_uniflow_results）;方法
附件是我的AndroidManifest.xml和失败的JAVA。
的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.gasguirre.MobilePumpApp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.gasguirre.MobilePumpApp.Main"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.gasguirre.MobilePumpApp.Uniflow"
android:label="@string/title_activity_uniflow"
android:parentActivityName="com.example.prueba1.Main" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.prueba1.Main" />
</activity>
<activity
android:name="com.gasguirre.MobilePumpApp.Multiflow"
android:label="@string/title_activity_multiflow"
android:parentActivityName="com.example.prueba1.Main" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.prueba1.Main" />
</activity>
<activity android:name="com.gasguirre.MobilePumpApp.Uniflow_results"/>
<activity android:name="com.gasguirre.MobilePumpApp.Multiflow_results"/>
</application>
</manifest>
Uniflow_results.java
package com.gasguirre.MobilePumpApp;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.format.DateFormat;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import java.text.DecimalFormat;
import java.util.Date;
public class Uniflow_results extends Activity {
Date d = new Date();
CharSequence datetime = DateFormat.format("yyyy-MM-dd hh:mm:ss", d.getTime());
String[] emailRecipient = {""};
private double volume_result_a = 0.0;
private double volume_result_b = 0.0;
private double volume_result_c = 0.0;
private double volume_result_d = 0.0;
DecimalFormat df = new DecimalFormat("#.##");
private double drug_a_quantity = 0.0;
private double drug_b_quantity = 0.0;
private double drug_c_quantity = 0.0;
private double drug_d_quantity = 0.0;
private double volume_saline= 0.0;
private double drug_a_concentration = 0.0;
private double drug_b_concentration = 0.0;
private double drug_c_concentration = 0.0;
private double drug_d_concentration = 0.0;
int counter = 1;
TextView volume_drugA;
TextView volume_drugB;
TextView volume_drugC;
TextView volume_drugD;
TextView volume_salineTextView;
TextView name_drugA;
TextView name_drugB;
TextView name_drugC;
TextView name_drugD;
String pump_model = "N/A";
String drug_a_name = "Drug A";
String drug_b_name = "Drug B";
String drug_c_name = "Drug C";
String drug_d_name = "Drug D";
String unit_type = "";
String unit_type2 = "";
private double pump_flow = 0.0;
private double reservoir_volume = 0.0;
EditText patient_nameET;
Button send_report;
private void retrieve_variables() {
Bundle extras = getIntent().getExtras();
unit_type2 = extras.getString("unit_type2");
unit_type = extras.getString("unit_type1");
if (extras.getDouble("pump_flow") > 0) {
pump_flow = extras.getDouble("pump_flow");
}
if (extras.getDouble("reservoir_volume_edit_text") > 0) {
reservoir_volume = extras.getDouble("reservoir_volume_edit_text");
}
//chequea si extras está vacio, y pone el valor que se pasó de la actividad anterior.
volume_result_a = extras.getDouble("volume_a");
volume_result_b = extras.getDouble("volume_b");
volume_result_c = extras.getDouble("volume_c");
volume_result_d = extras.getDouble("volume_d");
drug_a_quantity = extras.getDouble("drug_a_quantity");
drug_b_quantity = extras.getDouble("drug_b_quantity");
drug_c_quantity = extras.getDouble("drug_c_quantity");
drug_d_quantity = extras.getDouble("drug_d_quantity");
drug_a_concentration = extras.getDouble("drug_a_concentration");
drug_b_concentration = extras.getDouble("drug_b_concentration");
drug_c_concentration = extras.getDouble("drug_c_concentration");
drug_d_concentration = extras.getDouble("drug_d_concentration");
if (extras.getString("drug_a_name") != null) {
drug_a_name = extras.getString("drug_a_name");
}
if (extras.getString("drug_b_name") != null) {
drug_b_name = extras.getString("drug_b_name");
}
if (extras.getString("drug_c_name") != null) {
drug_c_name = extras.getString("drug_c_name");
}
if (extras.getString("drug_d_name") != null) {
drug_d_name = extras.getString("drug_d_name");
}
if (extras.getString("pump_model") != null) {
pump_model = extras.getString("pump_model");
}
if (reservoir_volume != 0)
{
volume_saline = reservoir_volume - (volume_result_a +volume_result_b +volume_result_c + volume_result_d);
}
}
private void populate_labels(){
volume_drugA.setText(String.format("%.02f", volume_result_a));
volume_drugB.setText(String.format("%.02f", volume_result_b));
volume_drugC.setText(String.format("%.02f", volume_result_c));
volume_drugD.setText(String.format("%.02f", volume_result_d));
volume_salineTextView.setText(String.format("%.02f", volume_saline));
name_drugA.setText(drug_a_name);
name_drugB.setText(drug_b_name);
name_drugC.setText(drug_c_name);
name_drugD.setText(drug_d_name);
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_uniflow_results);
volume_drugA = (TextView) findViewById(R.id.volume_drugA);
volume_drugB = (TextView) findViewById(R.id.volume_drugB);
volume_drugC = (TextView) findViewById(R.id.volume_drugC);
volume_drugD = (TextView) findViewById(R.id.volume_drugD);
name_drugA = (TextView) findViewById(R.id.name_drug_A_textView);
name_drugB = (TextView) findViewById(R.id.name_drug_B_textView);
name_drugC = (TextView) findViewById(R.id.name_drug_C_textView);
name_drugD = (TextView) findViewById(R.id.name_drug_D_textView);
volume_salineTextView = (TextView) findViewById(R.id.volume_salineTextView);
retrieve_variables();
populate_labels();
addListenerOnButton();
}
private void addListenerOnButton() {
send_report = (Button) findViewById(R.id.send_report_button);
send_report.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
patient_nameET = (EditText) findViewById(R.id.patient_name_edit_text);
if (unit_type.equals("ug")){
drug_a_quantity = drug_a_quantity * 1000;
drug_b_quantity = drug_b_quantity * 1000;
drug_c_quantity = drug_c_quantity * 1000;
drug_d_quantity = drug_d_quantity * 1000;
}
if (unit_type2.equals("ug/ml")){
drug_a_concentration = drug_a_concentration * 1000;
drug_b_concentration = drug_b_concentration * 1000;
drug_c_concentration = drug_c_concentration * 1000;
drug_d_concentration = drug_d_concentration * 1000;
}
sendEmail();
}
});
}
private void sendEmail() {
getEmailInfo();
// String to = email_address;
String subject = ("Report for Patient: " + patient_nameET.getText().toString() + " from Mobile Pump App");
String text_report =
("Patient Name: " + patient_nameET.getText().toString() +'\n' +
"Report generated on: " + datetime + '\n' +
"Protocol number: " + counter + '\n' + '\n' +
"Volume of "+ drug_a_name + ": " + volume_drugA.getText().toString() + " ml" + '\n' +
"Volume of "+ drug_b_name + ": " + volume_drugB.getText().toString() + " ml" + '\n' +
"Volume of "+ drug_c_name + ": " + volume_drugC.getText().toString() + " ml" + '\n' +
"Volume of "+ drug_d_name + ": " + volume_drugD.getText().toString() + " ml" + '\n' +
"Volume of Sterile Saline solution to add: " + df.format(volume_saline) + " ml" + '\n' + '\n'
+
"ENTRY VALUES" + '\n' + '\n'+
"Pump Model: " + pump_model + '\n' +
"Pump Flow (ml/24h): " + df.format(pump_flow) + '\n' +
drug_a_name + "- Quantity: " + df.format(drug_a_quantity) + " "+ unit_type + " - Concentration: " + df.format(drug_a_concentration) + unit_type2 +'\n' +
drug_b_name + "- Quantity: " + df.format(drug_b_quantity) + " "+ unit_type + " - Concentration: " + df.format(drug_b_concentration) + unit_type2 +'\n' +
drug_c_name + "- Quantity: " + df.format(drug_c_quantity) + " "+ unit_type + " - Concentration: " + df.format(drug_c_concentration) + unit_type2 +'\n' +
drug_d_name + "- Quantity: " + df.format(drug_d_quantity) + " "+ unit_type + " - Concentration: " + df.format(drug_d_concentration) + unit_type2 +'\n' +
"Reservoir Volume: " + df.format(reservoir_volume) + '\n'
);
Intent emailIntent = new Intent(Intent.ACTION_SEND);
emailIntent.putExtra(Intent.EXTRA_EMAIL, emailRecipient);
emailIntent.putExtra(Intent.EXTRA_SUBJECT, subject);
emailIntent.putExtra(Intent.EXTRA_TEXT, text_report);
emailIntent.setType("message/rfc822");
startActivity(Intent.createChooser(emailIntent, "Email"));
}
private void getEmailInfo() {
SharedPreferences preferences = getSharedPreferences("preferences", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = preferences.edit();
String email = preferences.getString("email","");
emailRecipient = email.split(",");
counter = preferences.getInt("counter", 1 );
counter = counter +1;
editor.putInt("counter", counter);
editor.commit();
}
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item){
super.onOptionsItemSelected(item);
switch (item.getItemId()){
case R.id.setEmail:
setEmail();
break;
}
return true;
}
public void setEmail(){
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("Set E-Mail");
// Set an EditText view to get user input
final EditText input = new EditText(this);
alert.setView(input);
alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String email = input.getText().toString();
SharedPreferences preferences = getSharedPreferences("preferences",Context.MODE_PRIVATE);
SharedPreferences.Editor editor = preferences.edit();
editor.putString("email", email);
editor.commit();
}
});
alert.setMessage("You can set more than one recipient by separating e-mail with a comma e.g. email@email.com, email2@email.com");
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
// Canceled.
}
});
alert.show();
}
}
Activity_uniflow_results.xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".Uniflow_results">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/set_values"
android:id="@+id/textView2"
android:layout_gravity="center"/>
<Space
android:layout_width="23dp"
android:layout_height="23dp"
android:layout_gravity="center"
android:id="@+id/space"/>
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left|center_vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/volume"
android:id="@+id/textView"
android:layout_gravity="center_horizontal|top"
android:layout_marginRight="2dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/name_drug_A"
android:id="@+id/name_drug_A_textView"
android:layout_gravity="center_horizontal|top"
android:layout_marginRight="10dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/volume_drugA"
android:id="@+id/volume_drugA"
android:layout_gravity="center_horizontal|top"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/units_label3"
android:id="@+id/textView3"
android:layout_gravity="center_horizontal|top"
android:layout_marginLeft="2dp"/>
</TableRow>
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left|center_vertical"
android:id="@+id/tableRow">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/volume"
android:id="@+id/textView4"
android:layout_gravity="center_horizontal|top"
android:layout_marginRight="2dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/name_drug_B"
android:id="@+id/name_drug_B_textView"
android:layout_gravity="center_horizontal|top"
android:layout_marginRight="10dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/volume_drugA"
android:id="@+id/volume_drugB"
android:layout_gravity="center_horizontal|top"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/units_label3"
android:id="@+id/textView6"
android:layout_marginLeft="2dp"
android:layout_gravity="center_horizontal|top"/>
</TableRow>
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left|center_vertical"
android:id="@+id/tableRow2">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/volume"
android:id="@+id/textView7"
android:layout_gravity="center_horizontal|top"
android:layout_marginRight="2dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/name_drug_C"
android:id="@+id/name_drug_C_textView"
android:layout_gravity="center_horizontal|top"
android:layout_marginRight="10dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/volume_drugA"
android:id="@+id/volume_drugC"
android:layout_gravity="center_horizontal|top"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/units_label3"
android:id="@+id/textView9"
android:layout_marginLeft="2dp"
android:layout_gravity="center_horizontal|top"/>
</TableRow>
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left|center_vertical"
android:id="@+id/tableRow3">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/volume"
android:id="@+id/textView10"
android:layout_gravity="center_horizontal|top"
android:layout_marginRight="2dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/name_drug_D"
android:id="@+id/name_drug_D_textView"
android:layout_gravity="center_horizontal|top"
android:layout_marginRight="10dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/volume_drugA"
android:id="@+id/volume_drugD"
android:layout_gravity="center_horizontal|top"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/units_label3"
android:id="@+id/textView11"
android:layout_marginLeft="2dp"
android:layout_gravity="center_horizontal|top"/>
</TableRow>
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left|center_vertical"
android:id="@+id/tableRow4">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/volume_saline"
android:id="@+id/textView12"
android:layout_gravity="center_horizontal|top"
android:layout_marginRight="10dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/volume_drugA"
android:id="@+id/volume_salineTextView"
android:layout_gravity="center_horizontal|top"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/units_label3"
android:id="@+id/textView15"
android:layout_marginLeft="2dp"
android:layout_gravity="center_horizontal|top"/>
</TableRow>
<Space
android:layout_width="31dp"
android:layout_height="40dp"
android:layout_gravity="center"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/reporting"
android:id="@+id/textView5"
android:layout_gravity="center"/>
<Space
android:layout_width="23dp"
android:layout_height="23dp"
android:layout_gravity="center"
android:id="@+id/space2"/>
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/patient_name"
android:id="@+id/textView8"
android:layout_gravity="center"/>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="textPersonName"
android:ems="10"
android:id="@+id/patient_name_edit_text"
android:hint="Name"/>
</TableRow>
<Space
android:layout_width="24dp"
android:layout_height="46dp"
android:layout_gravity="center"
android:id="@+id/space3"/>
<Button
android:layout_width="184dp"
android:layout_height="wrap_content"
android:text="@string/send_report"
android:id="@+id/send_report_button"
android:layout_gravity="center"/>
</LinearLayout>
</ScrollView>
奇怪的是，在第一个活动中使用了setContentView方法，但是没有在那里失败，在第二个活动中使GUI膨胀时失败
答案 0 :(得分：2)
Space，因此在Gingerbread设备上不可用。您可以使用View：
<View
android:layout_width="23dp"
android:layout_height="23dp"
android:layout_gravity="center"
android:id="@+id/space2"/>
或者将support-library-v7（注意：不是v4）添加到您的项目中，该项目包含Space的反向移植版本：
<android.support.v7.widget.Space
android:layout_width="23dp"
android:layout_height="23dp"
android:layout_gravity="center"
android:id="@+id/space2"/>