我正在将应用程序从 Eclipse 移植到 Android Studio，并在尝试在 API 小于 17 的模拟器上运行应用程序时遇到验证错误。我将不胜感激有关如何处理此问题的任何指导。以下是 API 8 模拟器上 logcat 中显示的内容：
12-27 01:48:27.189 431-431/com.zigzagworld.icjl.tanachbible W/dalvikvm: VFY: register1 v10 type 12, wanted 10
12-27 01:48:27.189 431-431/com.zigzagworld.icjl.tanachbible W/dalvikvm: VFY: rejecting opcode 0x70 at 0x005e
12-27 01:48:27.189 431-431/com.zigzagworld.icjl.tanachbible W/dalvikvm: VFY: rejected Lcom/zigzagworld/fonts/GlyphMetrics;.<init> (SSS[S)V
12-27 01:48:27.189 431-431/com.zigzagworld.icjl.tanachbible W/dalvikvm: Verifier rejected class Lcom/zigzagworld/fonts/GlyphMetrics;
紧随其后的是应用程序崩溃（毫不奇怪）java.lang.VerifyError。相同的 .apk 文件将在 API 级别 17 及更高级别上运行良好。API 17 及更高版本有不同的代码路径，但GlyphMetrics无论 API 级别如何，都会在某些时候使用该类。（如果不同的代码路径会影响一个类在加载时是否产生验证错误，请告诉我！）
该类GlyphMetrics是一个非常简单的容器，用于存储有关我们在应用程序中使用的自制位图字体的一些度量信息：
package com.zigzagworld.fonts;
import static com.zigzagworld.fonts.Diacritics.LOWER_DIACRITIC;
import static com.zigzagworld.fonts.Diacritics.UPPER_DIACRITIC;
/**
* Represents the layout metrics for a glyph.
*
* @author Ted Hopp
*/
public final class GlyphMetrics {
public static final short[] EMPTY_EXCLUSION = new short[0];
public static final short[][] EMPTY_EXCLUSIONS = { EMPTY_EXCLUSION, EMPTY_EXCLUSION };
/** The width of the glyph image, in pixels. */
public short width;
/** The height of the glyph image, in pixels. */
public short height;
/**
* The distance in pixels between the top of the glyph image and the
* baseline of the line. A positive value means that the top of the glyph
* should be above the baseline of the line; a negative value means that the
* top of the glyph should be below the baseline of the line.
*/
public short baseline;
/**
* The upper and lower axes for placement of diacriticals. Each axis is the
* distance from the left of the glyph image at which diacriticals should be
* centered. (The formatting algorithm for the font may move diacriticals
* from this position to avoid interference between glyphs.)
*/
public short[] axes;
/**
* The upper and lower exclusion zone arrays. If there are <i>n</i> upper
* (say) zones, the upper array has length length 2*<i>n</i>. The array has
* the left edge of the first zone, the right edge of the first zone, the
* left edge of the second zone, etc. The lower zone data are organized in
* the same way.
*/
public short[][] zones;
public GlyphMetrics(short width, short height, short baseline, short[] layoutData) {
this.width = width;
this.height = height;
this.baseline = baseline;
axes = new short[2];
width >>= 1; // for the rest of this, we need the half-width
if (layoutData == null || layoutData.length == 0) {
axes[UPPER_DIACRITIC] = axes[LOWER_DIACRITIC] = width;
zones = EMPTY_EXCLUSIONS;
} else {
axes[UPPER_DIACRITIC] = layoutData[0];
if (layoutData.length < 2) {
axes[LOWER_DIACRITIC] = width;
} else {
axes[LOWER_DIACRITIC] = layoutData[1];
}
if (layoutData.length < 5) {
zones = EMPTY_EXCLUSIONS;
} else {
int nUpper = layoutData[2] << 1;
zones = new short[2][];
zones[UPPER_DIACRITIC] = new short[nUpper];
System.arraycopy(layoutData, 3, zones[UPPER_DIACRITIC], 0, nUpper);
int lowerStart = 3 + nUpper;
if (layoutData.length < 2 + lowerStart) {
zones[LOWER_DIACRITIC] = EMPTY_EXCLUSION;
} else {
int nLower = layoutData[lowerStart++] << 1;
zones[LOWER_DIACRITIC] = new short[nLower];
System.arraycopy(layoutData, lowerStart, zones[LOWER_DIACRITIC], 0, nLower);
}
}
}
}
}
（导入UPPER_DIACRITIC和LOWER_DIACRITIC分别是常数 0 和 1。）
我正在使用带有 Gradle 插件com.android.tools.build:gradle:2.0.0-alpha3和 JDK 1.7.0_80 的 Android Studio 2.0 Preview 4 构建它。这是build.gradle.apk 模块的文件：
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion '23.0.2'
defaultConfig {
applicationId "com.zigzagworld.icjl.tanachbible"
minSdkVersion 8
targetSdkVersion 23
versionCode 10800310
versionName "3.1.0"
manifestPlaceholders = [
appName: "App",
v8TOCActivityName: "BaseTOCActivity",
v8PurchaseActivityName: "PurchaseActivity",
v17TOCActivityName: "TOCActivity",
v17PurchaseActivityName: "PurchaseActivity",
]
}
signingConfigs {
// redacted for this post
}
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
//noinspection GroovyAssignabilityCheck
signingConfig // redacted
}
}
flavorDimensions "market"
productFlavors {
google {
dimension "market"
manifestPlaceholders = [
appName: "App_Google",
v8TOCActivityName: "TOCActivity_Google",
v8PurchaseActivityName: "GooglePurchaseActivity",
v17TOCActivityName: "TOCActivity_Google",
v17PurchaseActivityName: "GooglePurchaseActivity"
]
}
amazon {
dimension "market"
manifestPlaceholders = [
appName: "App_Amazon",
v8TOCActivityName: "BaseTOCActivity",
v8PurchaseActivityName: "PurchaseActivity",
v17TOCActivityName: "TOCActivity",
v17PurchaseActivityName: "PurchaseActivity"
]
}
sideLoad {
dimension "market"
manifestPlaceholders = [
appName: "App_Unlicensed",
v8TOCActivityName: "BaseTOCActivity",
v8PurchaseActivityName: "PurchaseActivity",
v17TOCActivityName: "TOCActivity",
v17PurchaseActivityName: "PurchaseActivity"
]
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.android.support:support-annotations:23.1.1'
compile project(':Tanach Data')
googleCompile project(':Google Vending')
amazonCompile project(':Amazon Vending')
}
问题出现在调试构建类型中，因此此时 ProGuard 不在图片中。