377063dfa4
This is only the first half of physical key event mapping. The modifiers and hardware key codes will be in a followup CL. I'm splitting this out because it covers two other parts of the problem: first is maintaining a JNIEnv pointer for the main routine, the second is access to the Android unicode key map. The NDK does not have a method to give us the key mapping, so we get to it via GoNativeActivity. Tested with a USB keyboard. I'll attempt an abd-based unit test later, but I suspect it will be difficult to set a device ID. Change-Id: Ie93700d1f2a5d382a9b17cdd668cb4acaa6e4bcc Reviewed-on: https://go-review.googlesource.com/13649 Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
68 lines
1.8 KiB
Java
68 lines
1.8 KiB
Java
package org.golang.app;
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import android.app.Activity;
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import android.app.NativeActivity;
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import android.content.Context;
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import android.content.pm.ActivityInfo;
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import android.content.pm.PackageManager;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.KeyCharacterMap;
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public class GoNativeActivity extends NativeActivity {
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private static GoNativeActivity goNativeActivity;
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public GoNativeActivity() {
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super();
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goNativeActivity = this;
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}
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String getTmpdir() {
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return getCacheDir().getAbsolutePath();
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}
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int getRune(int deviceId, int keyCode, int metaState) {
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try {
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int rune = KeyCharacterMap.load(deviceId).get(keyCode, metaState);
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if (rune == 0) {
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return -1;
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}
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return rune;
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} catch (KeyCharacterMap.UnavailableException e) {
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return -1;
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} catch (Exception e) {
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Log.e("Go", "exception reading KeyCharacterMap", e);
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return -1;
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}
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}
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private void load() {
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// Interestingly, NativeActivity uses a different method
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// to find native code to execute, avoiding
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// System.loadLibrary. The result is Java methods
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// implemented in C with JNIEXPORT (and JNI_OnLoad) are not
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// available unless an explicit call to System.loadLibrary
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// is done. So we do it here, borrowing the name of the
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// library from the same AndroidManifest.xml metadata used
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// by NativeActivity.
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try {
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ActivityInfo ai = getPackageManager().getActivityInfo(
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getIntent().getComponent(), PackageManager.GET_META_DATA);
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if (ai.metaData == null) {
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Log.e("Go", "loadLibrary: no manifest metadata found");
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return;
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}
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String libName = ai.metaData.getString("android.app.lib_name");
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System.loadLibrary(libName);
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} catch (Exception e) {
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Log.e("Go", "loadLibrary failed", e);
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}
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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load();
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super.onCreate(savedInstanceState);
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}
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}
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